Population-Based Approaches to Prevent Domestic Violence against Women Using a Systematic Review.

Objective: In this systematic review, we aimed to evaluate the existing strategies and interventions in domestic violence prevention to assess their effectiveness. Method : To select studies, Pubmed, ISI, CINAHL, PsycINFO, Cochrane, Scopus, Embase, Ovid, Science Direct, ProQuest, and Elsevier databases were searched. Two authors reviewed all papers using established inclusion/ exclusion criteria. Finally, 18 articles were selected and met the inclusion criteria for assessment. Following the Cochrane quality assessment tool and AHRQ Standards, the studies were classified for quality rating based on design and performance quality. Two authors separately reviewed the studies and categorized them as good, fair, and poor quality.
Results: Most of the selected papers had fair- or poor-quality rating in terms of methodology quality. Different intervention methods had been used in these studies. Four studies focused on empowering women; 3, 4, and 2 studies were internet-based interventions, financial interventions, and relatively social interventions, respectively. Four interventions were also implemented in specific groups. All authors stated that interventions were effective.
Conclusion: Intervention methods should be fully in line with the characteristics of the participants. Environmental and cultural conditions and the role of the cause of violence are important elements in choosing the type of intervention. Interventions are not superior to each other because of their different applications.

Domestic violence (DV) can be a major health problem (1) and one of the causes of death and disability in women that depends on the local culture where the woman lives (2). Violence against women as a health concern is increasing (3). This issue will increase the demand for health services (4). DV can be physical, sexual, economic, and psychological (5). Scientific evidence suggests that DV causes physical injuries, gastrointestinal disorders, chronic pain syndrome, depression, anxiety, suicidal behaviors, and pregnancy problems, such as unwanted pregnancy, illegal abortion, and preterm labor (6).

Besides, this phenomenon can affect children in the future. Studies show that the risk of behavioral problems and emotional injuries in children who experience violence increases in the future (7).

According to a recent WHO report, 37% of Eastern Mediterranean countries have the highest rate of violence against women (8). Surveys show that the prevalence of violence against women varies from 27% to 83% between different communities, and this diversity may be due to cultural differences (9, 10).

Recent studies in Iran show that about 66% of married women during the first year of their marriage have experienced some form of violence by their current or ex-spouse (9).

Although the problem of DV is very serious, it can be well screened for routine symptoms of DV during general health services (11). The ultimate goal is to stop the violence before it begins. For this purpose, it is important to understand the factors that trigger violence. Studies show that traditional misconceptions, low literacy levels, poor knowledge about women's rights, and lack of social support for abused women can lead to various forms of violence against women (1). Violence tracking is the first step in controlling DV (11). In contrast, any delay in the early detection of this phenomenon can cause serious harm to the well-being of women and children. Based on previous systematic review studies in Iran, various interventions and prevention methods have been used to control DV and overcome this social dilemma.

Despite recent information about the epidemiology of violence based on recent studies, there is still less evidence-based approaches in primary health care services for the prevention and control of DV against women. The assessment of different interventions to improve the well-being of affected women is still a key research priority (12). Thus, there is an urgent need to design complementary research with very robust and comprehensive research methods to evaluate the effectiveness of existing intimate partner violence (IPV) interventions. According to the available documentation, serval interventions have been designed to combat violence against women. Some of these interventions are specific to a particular type of violence. But nowadays, according to the documentation, there is a need for implementation of social support programs and interventions for women, children, and their partners. Also, it seems few randomized control trials (RCT) as a robust design have been performed in this field, and studies have reported that the results of the intervention were effective, but the quality of these studies should be assessed.

Finally, methods should be selected and designed to be effective, simple, accessible, and practicable for different demographic groups and health care settings. According to the mentioned evidence-based facts, in this research project, we aimed to evaluate the existing strategies and interventions in DV prevention, using a systematic review, to assess their effectiveness to choose the best applicable and effective methods.

Materials and Methods

This systematic review was conducted in 2019. To select appropriate studies, an extensive search was conducted. Pubmed, ISI, CINAHL, PsycINFO, Cochrane, Scopus, Embase, Ovid, Science Direct, ProQuest, and Elsevier databases were searched to cover published articles from 2000 to 2019.To select studies, we used the keywords such as Domestic Violence Family, Violence Partner Abuse, Intimate Partner Violence, Abused, and Women. The type of included studies was intervention clinical trial, randomized controlled trial, and prevention trials. Therefore, these terms were used as keywords as well. Also, references of the selected articles were searched manually. Two researchers conducted the resource search process separately and eventually coordinated the selected studies. In the first searching phase, 921 articles were selected. Using manual searching, 58 related articles were found. Finally, 979 articles were selected. Duplicating articles were detected by one researcher and supervised by a subsequent researcher using EndNote (X8) software. The number of articles after this process reached 927. Then, the title and abstract of articles were evaluated based on inclusion criteria. Consequently, 78 articles met the inclusion criteria. By reviewing the full-texts of articles, 44 were excluded due to inappropriate content. Out of the remaining 34 articles, 16 were excluded considering their designs. Finally, 18 eligible studies were reviewed. Finding and Screening Flowchart were plotted using the PRISMA Flow Diagram Tool (13), which is reported in Figure 1.

We considered all studies with a RCT design, as eligible for inclusion if they examined PICO as a tool (Table1) for developing a search strategy for identifying potentially relevant studies in any topic about DV with prevention approach. We applied other restrictions in this review, such as studies related to the English language and their publication time was from 2000 to 2019. Also, articles whose full texts were not accessible were excluded.

Table1

Description of PICO Criteria Applied to the Selecting Studies

Population or Problem	Intervention	Comparison	Outcome
Studies with interventional design, which examines the impact of interventions on reducing any type of violence against women	Any type of applied intervention such as women empowerment, economic, social, educational, etc to prevention and reduction of DV	The comparison could be any desired approach, such as in reach facilitates, routine cares or placebo	Reduction occurrence and repetition of DV and any type of violence such as sexual, emotional, physical, financial, etc,against women

The Cochrane Risk-of-Bias Tool was used for the qualitative evaluation of the articles, considering the design of the papers that had the RCT methods (14). This tool has 7 criteria to assess the quality of articles in terms of bias. Articles were evaluated by 2 researchers using this tool separately. There was a 25% inconsistency between both researchers. To resolve the disagreement, a third-person re-evaluated and judged the disputes. Using the instructions of the Cochrane quality assessment tool, the studies were classified for quality rating, based on design and performance quality according to the AHRQ Standards. Therefore, the studies were categorized into 3 subgroups: good, fair, and poor quality (14). Table 2 illustrates these subgroups. Thereafter, data were entered into Review Manager Software (version: 5.3). The results are presented as the risk of bias graph (Figure 2) and the summary of the risk of bias graph (Figure 3).

Table 2

Summary of Characteristics Domestic Violence Intervention Studies

	Study Source	Eligibility	Participants / Study Groups	Interventions/ Time Follow up	Outcomes Assessment	Results	Quality Rating
Women Empowerment Interventions	Agnes Tiwari et al([18]), 2012	18 years or older Women and Positive for IPV	Women using child care, (100 women per group)	Empowerment Intervention, and Community Services / 9months	Self-reporting	The intervention wasefficacious	Fair
	Hannah M. Clark etal([19]), 2018	Spanish speaking women, with experienced IPV the past 2 yr, with child (4-12yr)	Spanish-speaking Latina mothers Treatment (n=55) Control (n=40)	Moms’ EmpowermentProgram (MEP) / 10 weeks	Interviewing, Self-Reporting	MEP participantsreported lower Total IPV,	Poor
	Jhumka Gupta etal([20]), 2013	Women with 18 years old and over	Treatment (n=513),control (n=421)	VSLA & GDG Intervention/ 4 months	Self-report by women and interviewing	Intervention significantly reduced IPV	Poor
	Sandra A. et al([21]),2015	Women with IPV and with childrenbetween the ages of6 and 12.	Mother-plus-child (n=61), Child-only (n=62), and Comparison group (n=58)	A community-based therapeutic group intervention,	Using the Severity of Violence againstWomen Scales (SVAWS)	Intervention program was successful in moderate change in IPV	Fair
Interventions for Specific target groups	Ann L. Coker et al([22]), 2017	There was no specific criterion, schools selected from rape crisis.	89,707 students, 46 high schools inintervention or controlconditions	The Green Dot violenceprevention program / 3 years	Interviewing, Self-Reporting	Green Dot! was effective	Poor
	Louisa Gilbert et al([23]), 2006	Women aged 18 or older, using any illicit drug and IPV affected	intervention (n = 16), control (n=18)	Relapse prevention andrelationship safety (RPRS) / 3 months	IPV measurement using the RevisedConflict TacticsScales	RPRS intervention was effective	Poor
	Kasetchai Laeheem et al([24]), 2017	Thai Muslim married couples	40 Thai Muslim married couples, Experiment (n=20) Control (n=20)	Happy Muslim Family Activities /12 weeks	Pretest & Posttest	Intervention in experimental groupwas effective	Poor
	Jennifer Langhinrichsen-Rohling et al([25]),2012	At-risk adolescent females	Intervention (n=39) control (n=33)	Building A Lasting Love (BALL) Program/ 6 weeks	PsychologicalAggressionSubscale, checklist	The program had some impact on IPV control	Poor
	Jamila Mejdoubi et al([26]),2013	Disadvantaged women <26 years, with no previous live births	Pregnant women, control (n=223),intervention (n=237)	Nurse-Family Partnership(NFP) / 32 weeks	Self-reporting	Intervention was effective during pregnancy and after birth	Poor
Internet-Based interventions	Jane Koziol-McLain et al([27]), 2018	English-Speakingwomen aged 16 years or older	General population (women) Control(n = 226) Intervention (n=186)	Web-based safetyDecision Aid / 12 months	Using Checklist &Scales	Intervention was effective in reducingIPV and depression	Fair
	Y. Joon Choi et al([28]) , 2017	Korean or KoreanAmerican, and thateither the clergy member	Korean American faithleaders Intervention (n = 27), control (n = 28)	Korean Clergy for HealthyFamilies (KOCH)/3 month	Self-administratedquestioner	Knowledge and attitudes increased about resources tohandle IPV	Fair
	Nancy E. Glass et al([29]), 2017	Past 6 months abused Spanish- orEnglish-speaking women,	Currently abused women, intervention(n=418) control (n=423)	A Tailored Internet-Based Safety Decision Aid / 6-12 months	Internet based self-reporting	Intervention increased safety behaviors and reduced IPV	Poor
Financial Interventions	Paul M Pronyk et al([30]), 2006	Women, household co-residents aged 14–35 years	8 villages, Cohort one(860) Cohort two (1835)Cohort three (3881)	Intervention with Microfinance for AIDS and Gender Equity (IMAGE) / 2-3 yr	Face-to-faceStructuredinterviews	IPV violence reduced in the intervention group	Fair
	Clea C. Sarnquist et al([31]), 2018	Adult women IPV survivors,18 years of age or older	Adult women IPV survivors / intervention (n = 82) control (n = 81)	Combination of BusinessTraining, Microfinance, and IPV support / 8 weeks	DHS questions ondomestic violence	Intervention increased daily profit margin and decreased the IPV	Poor
	Kathryn L et al([32]), 2015	Women aged 18 years and older with no previousmicrofinance experience	Intervention group (934) partnered women, in 24villages in rural	Combined Social and Economic Empowerment Program / 2 year	Self-report bywomen and interviewing	Was effective in participants with a history of adult marriage	Poor
	Anita Raj et al([33]), 2017	Couples aged 18-30 years for the husband and aged 15 + years for the wife	Rural young married couples (N = 1091)	Women's Economic Empowerment (CHARM) / 9 -18 month	Self-reporting	Intervention reduced the risk of IPV among married women	Poor
Other Interventions	Tanya Abramsky et al([34]), 2012	Being at risk to domestic violence, men and women aged 18 to 49 years	Eight sites, control and intervention groups (800men, 800 women)	SASA! Intervention (Gender Focused Intervention),4 Years	Interviewing	Positive impact on reduction of domestic violence	Fair
	Cris M. Sullivan et al([35]), 2003	Women recruited from domestic violence shelter program	Intervention (n=143)control (n=131)	Experimental Social Innovation and Dissemination (ESID) model / 6-24-month	Face-to-facestructured interviews	Women in intervention group significantly less abused again	Poor

PRISMA Flowchart Screening and Selection of Studies

Assessment of Methodological Quality of Selected Studies (Risk of Bias Graph)

Assessment of Methodological Quality of Selected Studies (Risk of Bias Summery)

Results

As noted, after a comprehensive search and qualitative evaluation of studies, finally 18 articles were selected for evaluatation. Based on the included articles, to prevent and control the violence against women in different countries, different models have been applied to various groups. In included articles, DV against women has been considered physical, emotional, sexual, financial, etc, by the wife or partner of the woman. The results of the studies show various screening tools for violence. For example, some of these tools were used in primary health care (15), some for pregnant women (16), and some for men (17). Of the final selected papers, the oldest was in 2003 and the newest in 2018. All final selected articles had an RCT design. Based on selecting the population to perform the interventions, there were various target groups and intervention methods. Most studies focused on empowering women. In 3 studies, the internet sites had been applied to conduct interventions. Four studies had also evaluated economic interventions and financially empowerment methods in couples. Two studies had used kinds of social intervention. Follow-up times were different between studies, and in some studies, the follow-up period was 4 years. In all selected studies based on the study goal, a preventive intervention method was considered for the study target group. The control group consisted of those who either did not receive any intervention or received another intervention to compare the efficacy of the method applied to the intervention group or were under routine care and treatment. Also, it was found that to assess the effectiveness of interventional methods, the amount of inflicted violence on women was either self-reported or measured using standard measurement tools. Evaluation of the design and quality of these studies based on the relevant evaluation checklists indicated that all studies had strengths and weaknesses in the method of implementation and process of the research. Most of the papers were at the fair or poor-quality level in terms of methodology quality rating. The summary of the characteristics of reviewed studies in this project that met the inclusion criteria was reported in Table 2.

Summary of Included Studies

In 4 included studies in this systematic review, women empowerment interventions were used to combat DV. The first study in this field was done in 2012 in china (18). Women aged 18 years or older with a positive screening for DV (n = 200) and small children were recruited to participate. The intervention was a community-based advocacy program, consisting of 2 components: empowerment and telephone social support. The intervention aimed to increase abused women’s safety and enhance their problem-solving ability. After the intervention, in the treatment group, the mean of safety behavior was increased almost a 5-fold significantly. The other study by Hannah in 2018, reported the reducing IPV in Spanish-Latinas speaking women (19). Inclusion criteria were having a history of IPV in the past 2 years and having a child of 4 to 12 years. The intervention was a community-based Moms’ Empowerment Program (MEP). MEP was used as an interpersonal relationship to empower women to increase women’s self-efficacy and reduce their self-blame. Although the sample size was not significant (intervention group = 55, control group = 40), the intervention (36) was significantly effective in the treatment group, especially physical violence. Because of the selection of specific groups of participants, the generalizability of the results was controversial. In a study by Jhumka Gupta, women over 18 years with at least 1-year marriage duration were involved (20). The intervention in this study was relatively different from the 2 previous studies. The control arm (n = 421) received VSLA (village savings and loan associations) and the treatment arm (n = 513) received VSLA and an 8-session gender dialogue group (GDG). The GDGs were developed between men and women to address household gender inequities and communication. Despite some methodological limitations, the results of this study were also effective in the VSLA-GDG group, but it was not significant. Another community-based intervention to empower women was in 2015 by Sandra (21). The intervention was a 10 session community- based therapeutic group program. The study included women who had a physical conflict and their children aged 6 and 12 years. Participants were categorized into 3 groups: mother-plus-child (n = 61), child-only (n = 62), and comparison group (n = 58). The intervention focused on enhancing women's skills, strengthening them in connecting to social support, and also empowering children to improve children's attitudes about DV to manage this health problem. This intervention with good methodological status like previously (37) had a moderate change in IPV prevention.

Out of 18 selected articles, in 5 the interventions were applied to specific groups. The applied interventions were also specific. In one study, the name of the intervention was the Green Dot program (22). In this method, male and female students (n = 89 707) were involved and received training about the types of violence (most sexual violence). These students had to train their friends as leaders. Although the study had a methodological limitation, at the end of the study, the different types of violence (especially sexual violence) and alcohol or drug-facilitated sex in schools reduced significantly. In the next study by Louisa Gilbert, drug user women were target groups (23). The aim was to assess the impact of RPRS (Relapse Prevention and Relationship Safety) to reduce IPV and prevent drug use in addicted women. According to experts, RPRS is suitable for women who experience different levels of violence and have multiple partners. The RPRS enables participants to avoid IPV and drug use by behavior changes and training suitable negotiation methods. After the intervention, in the RPRS group, about 5.3 times reduction in physical and sexual violence and 6 times in psychological violence was obtained. Another interesting study was applying religious methods (Happy Muslim Family Activities) to reduce DV. The study was conducted by Kasetchai Laeheem in 2017(24). In this study, certain religious norms and practices have been used as an intervention in Thailand's Muslim population to control violence against women. This method used Islamic methods and teachings to change the behavior of the couples, improve their attitude, and reinforce their morality. Despite the limitations, violence in this study was also reduced significantly in the intervention group. In the fourth study, Jennifer et al in 2012 examined the effect of BALL intervention (Building A Lasting Love Intervention) to reduce violence on young African American pregnant girls (n = 72)(25). This program focused on the signs of healthy versus unhealthy romantic relationships, personal relationship skill, and problem-solving techniques. Findings indicated that the program had some impact on IPV reduction in the treatment arm. In the last study, Jamila Mejdoubi evaluated the effect of nursing home care intervention to IPV control on 237 pregnant women (26). Women received approximately 50 nurse home visits during pregnancy, first-year, and second-year life of the child by trained nurses. During each home visit, the health status of the mother and child, mitigation of risk factors for IPV, and informing about consequences of IPV were intended. At the end of the study, about 50% reduction in violence (sexual, physical, and psychological) was obtained in the intervention group.

In 3 included studies, the internet-based interventions were applied. In the study of Jane Koziol-McLain conducted on 186 women aged 16 years and over, the study aimed to test the efficacy of a web-based safety decision aid to reduce IPV exposure by improving women's mental health (27). Participants were followed up for 1 year, and the study discovered that intervention was effective in reducing violence and depression symptoms. The next study in 2017 by Nancy E. Glass was conducted using the same methodology and yielded similar results (29). Other online intervention (KOCH) in 2017 by Joon Choi was designed to examine the impact of a short intervention for preventing and addressing IPV (28). About 55 Korean-American religious leaders were included in the study. The KOCH aimed to increase self-efficacy, knowledge of IPV, and improve attitudes that support IPV. After the 3-month follow-up, findings indicated that the intervention was effective and knowledge of clergy and their attitudes against IPV increased significantly.

Four studies have used financial interventions to reduce IPV. The first intervention (IMAGE) by Paul M Pronyk in 2005 aimed to assess a structural intervention on women aged 14-35 years in 8 matched villages (30). There were 3 groups: women who applied for loans (n = 843), women who were also living with loans applied women (n = 1455), and randomly selected women from that area (n = 2858). The intervention consisted of income-generating activities, gender roles, cultural beliefs, relationships, and IPV facts training curriculum. At the end of the study, the experience of IPV either physical or sexual reduced by 55%, and household economic wellbeing along social capital increased. The small number of clusters, short duration of follow-up, and biased reporting were several limitations of the study. The next intervention (Mashinani) by Clea Sarnquist was a woman empowering program through a combination of formal business training, microfinance, and IPV reduction activities (31). Women aged 18 years or older who were victims of DV were included. Women received their first loan and began their business activities according to their job plan. After 4 to 5 months of follow-up, the results showed that interventions affected increasing daily profits and decreasing DV. Another study by Kathryn L in 2015 was slightly different in terms of intervention and subjects (32). Researchers hypothesized that interventions on reducing IPV and economic abuse are not more effective on women married as child brides (<17 years). Women aged 18 years and older with no previous microfinance experience were eligible. The intervention aimed at the reduction of IPV and economic abuse using gender equality promotion activities. After the intervention, most forms of IPV were lower among women married as adults, and the study showed that interventions were less effective in women who are married at an early age. The last study by Anita Raja (CHARM intervention) in 2017 has particularly focused on women's economic empowerment (33). This research involved longitudinal examinations of women's financial independence and its associations with consequent incident IPV. The intervention was economic programs and gender equity training sessions. Eligible couples were women over 15 years with husbands aged 18-30 years. Finally, findings indicated that women's economic conflict with owning a bank account and involvement of married women with their husbands in business can reduce the occurrence and recurrence of IPV.

Intervention in 2 studies was nearly social. The first study (SASA) by Tanya Abramsky in 2012 emphasized prevention violence and HIV/AIDS in women in African countries (34). SASA intervention used a community mobilization approach by changing the community attitudes, norms, behaviors, and ending of gender inequality and societal misconceptions to prevent violence against women. Participants in the study were men and women aged 18 to 49 years. After 4 years, in the intervention group, attitudes improved toward violence, and social support responses to helping affected women increased. The ESID intervention was another social method by Cris M. Sullivan in 2003 (35). In this intervention, the role of social professionals by making innovations was crucial. Female undergraduate students were used to conduct the intervention on shelter women after community psychological training. Training courses were about empathy and active listening skills, IPV facts, managing dangerous situations, and accessing community resources. This intervention was also effective, and results indicated that women in the treatment arm were significantly less likely to be abused again, and they also reported a higher quality of life and fewer difficulties in obtaining community resources.

Discussion

In this systematic review, we examined the effectiveness of applied interventions and existing strategies to prevent IPV in 18 selected RCT articles. Reviewing the studies revealed that different interventions and therapeutic methods have been developed to control and reduce violence against women in different regions and countries. Included studies were also reviewed methodologically. Almost all articles received a fair- or poor-quality rating based on the Cochrane quality assessment tool. These limitations in the studies can preclude drawing any conclusions about the effectiveness of interventions.

Reviewing the papers also revealed that the selection of suitable screening tools, determining the amount of inflicted violence, and selecting effective methods to outcome assessment of interventions should be considered widely by researchers. The results of the studies showed that there are various screening tools for violence. For example, some of these tools were used in primary health care (15), some for pregnant women (16), and some for men. Based on included articles, very few studies to date have evaluated the effectiveness of screening programs to reduce violence or to improve women’s health. Also, data about the potential harms associated with these programs are lacking. Selecting the appropriate tool to assess outcomes of interventions is also controversial. Based on evidence, there is no complete consensus that the measurement of the recurrence of violence against individuals can be used as an appropriate tool to assess the effectiveness of interventional methods. Many researchers believe that most women do not have any control on re-violence over themselves (16). Furthermore, some insist on self-reporting by women, and there is great evidence that women underreport the violence and abuse against themselves (15).

In all reviewed articles, all authors stated that interventions were efficient, and there was no article declaring that the intervention was not effective. Likewise, most of the interventions were on women. Therefore, the results should be interpreted with caution.

Some studies have used the internet to intervene as an innovation. The researchers suggest that the online intervention provides a vehicle for creating awareness and action for change in a private space (27, 38). Based on the evidence, online data collection may help reduce some biases, and online training can eliminate general barriers to participation (39). Although this method may apply to certain groups, many abused women seek information online, and available information typically is not tailored to their circumstances.

Reviewing selected studies revealed that social factors are very efficient in designing and implementing interventions. Considering this, the many goals on IPV prevention programs can be achieved by changing gender inequality behaviors and societal misconceptions. Due to cultural resistance, these changes may be slow. Based on the evidence, one of the causes of disability in women depends on the local culture in which they live (32). According to WHO, one of the most important roles of public health in controlling DV is addressing social and cultural norms related to gender that support IPV (40).

Results of papers also showed that the role of social education and individual skills in enhancing women's social capital and reducing violence is important. Education plays both direct and indirect roles in the prevention of IPV (41). Based on studies, a positive attitude toward male dominance, belief about women as a lower rank in the creation, and many other cultural gender inequities rationalize violence against women (42). Thus, it seems that social scientists should play an active role in creating positive societal change in women with abusive partners who needed access to a variety of community resources.

In several studies, children had participated in the interventions, and the methods were effective likewise. Children as witnesses of parental violence learn that violence is a way to deal with marital problems, and when they grow up, they will commit violence against their own families (43). This matter should be widely considered in future works that children need to understand the facts of violence and learn how to manage it.

There have been some economic empowerment programs that have yielded somewhat conflicting results to reduce IPV and decrease its health harms (44). Studies state that women's revenue formation or their higher-earning than men are associated with increased rather than a reduced chance for IPV (45). Experts emphasize that the financial empowerment of women can reduce the risk for IPV, especially if sponsored with attempting to improve gender equity norms (46). Based on the evidence, when norms do not accept women's employment well, these programs may not be effective in controlling IPV (47).

Religious leaders can be effective in reducing violence against women in some countries. Some studies have emphasized the use of the process of Islamic socialization to prevent IPV. Related specialists believe that promoting Muslims to participate in activities that develop their potential with emphasis on Islamic morality and ethics can prevent and solve the problem of aggressive behavior (48). It is recommended that such interventions be performed for other religions as well.

Appraising included studies also showed that more vulnerable groups, such as students, pregnant and addicted women, should be considered separately and receive appropriate intervention programs to prevent violence. The Nurse-Family Partnership (NFP) (49) and Bystander intervention programs were specifically effective interventions conducted on young high-risk pregnant women and students to reduce the probability of violence respectively (50, 51).

Limitation

In the ongoing systematic review, we had some potential weaknesses. We limited this systematic review to English-language articles with available full-text. These constraints can lead to potential publication bias. Also, the search process restricted to selecting papers with an RCT design, and very effective interventions may have been made with different designs in other languages. Finally, it seems that a scoping review or narrative review be the most appropriate method instead of the systematic review approach for assessing or responding to such a wide study objective. Despite these limitations, we believe that conducting extensive search and selecting a variety of interventional studies in sufficient numbers can be one of the strengths of our study.

Conclusion

Most of the selected papers had fair- or poor-quality rating in terms of methodology quality. Evaluating the included articles revealed that the intervention methods should be fully in line with the characteristics of the participants and the role of the cause of violence in the choice of intervention should not be ignored. Interventions are not superior to each other, because they are selected based on the type of violence and the target group. Further research using rigorous designs should be done to assess the effectiveness of existing methods to facilitate reductions in IPV exposure.