| Literature DB >> 30482175 |
Nathaniel J Pollock1,2, Gwen K Healey3,4, Michael Jong5,6, James E Valcour7, Shree Mulay7.
Abstract
Indigenous peoples in Canada experience disproportionate rates of suicide compared to non-Indigenous populations. Indigenous communities and organizations have designed local and regional approaches to prevention, and the federal government has developed a national suicide prevention framework. However, public health systems continue to face challenges in monitoring the population burden of suicide and suicidal behaviour. National health data systems lack Indigenous identifiers, do not capture data from some regions, and do not routinely engage Indigenous communities in data governance. These challenges hamper efforts to detect changes in population-level outcomes and assess the impact of suicide prevention activities. Consequently, this limits the ability to achieve public health prevention goals and reduce suicide rates and rate inequities.This paper provides a critical analysis of the challenges related to suicide surveillance in Canada and assesses the strengths and limitations of existing data infrastructure for monitoring outcomes in Indigenous communities. To better understand these challenges, we discuss the policy context for suicide surveillance and examine the survey and administrative data sources that are commonly used in public health surveillance. We then review recent data on the epidemiology of suicide and suicidal behaviour among Indigenous populations, and identify challenges related to national surveillance.To enhance capacity for suicide surveillance, we propose strategies to better track progress in Indigenous suicide prevention. Specifically, we recommend establishing an independent community and scientific governing council, integrating Indigenous identifiers into population health datasets, increasing geographic coverage, improving suicide data quality, comprehensiveness, and timeliness, and developing a platform for making suicide data accessible to all stakeholders. Overall, the strategies we propose can build on the strengths of the existing national suicide surveillance system by adopting a collaborative and inclusive governance model that recognizes the stake Indigenous communities have in suicide prevention.Entities:
Keywords: Administrative data; Circumpolar; Data governance; Epidemiology; First Nations; Health disparities; Indigenous; Inuit; Self-harm; Suicide prevention
Mesh:
Year: 2018 PMID: 30482175 PMCID: PMC6260704 DOI: 10.1186/s12889-018-6224-9
Source DB: PubMed Journal: BMC Public Health ISSN: 1471-2458 Impact factor: 3.295
Fig. 1a Suicide Surveillance Indicator Framework. b: Iceberg Model of Suicide
Recent and lifetime prevalence of suicidal thoughts and suicide attempts among Indigenous populations in Canada
| Region, Indigenous Group | Number of survey participants | Age Group | Suicidal Thoughts | Suicide Attempts | Source | ||
|---|---|---|---|---|---|---|---|
| Recent | Lifetime | Recent | Lifetime | ||||
| Canada | |||||||
| General Population | ~ 65,000 | 15+ | 2.5% | 12.3% | 0.4% | 3.4% | CCHS (2015) |
| First Nations (Off Reserve) | 28,409a | 18+ | 5.2% | 14.7% | – | – | APS (2012) |
| Inuit | – | 18+ | 5.5% | 15.2% | – | – | APS (2012) |
| Métis | – | 18+ | 3.8% | 12.8% | – | – | APS (2012) |
| Nunavut | |||||||
| Inuit | 1,710 | 18+ | 14.0% | 48.0% | 5.0% | 29.0% | IHS-NU (2008) |
| Inuit | 1,581 | 18+ | 5.8% | 16.3% | – | – | APS (2012) |
| Ontario | |||||||
| First Nations (On Reserve) | 1,500 | 18+ | 18.6% | 25.3% | 10.5% b | 13.4% | FNRHS (2008/10) |
| First Nations (Off Reserve) | 4,286a | 18+ | 6.4% b | 12.2% | – | – | APS (2012) |
| Métis | – | 18+ | 3.2% b | 15.7% | – | – | APS (2012) |
| Alberta | |||||||
| First Nations (On Reserve) | 1,418 | 18+ | 15.2% | 22.1% | – | 14.4% | FNRHS (2008/10) |
| First Nations (Off Reserve) | 3,765a | 18+ | 5.5%b | 18.6% | – | – | APS (2012) |
| Métis | – | 18+ | 4.3%b | 13.8% | – | – | APS (2012) |
CCHS Canadian Community Health Survey, APS Aboriginal Peoples Survey, IHS-NU Inuit Health Survey-Nunavut. FNRHS=First Nations Regional Health Survey
aTotal number of APS (2012) survey participants in region including all First Nation, Inuit, and Métis
bInterpret with caution; high sampling variability
Incidence of emergency department visits for self injury, hospitalization for self injury, and suicide mortality among Indigenous and non-Indigenous populations in Canada
| Population (Year) | ED Visits for Self Injury | Hospitalization for Self Injury | Suicide Mortality | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases, n= | CR | ASR | 95% CI or SE | Cases, n= | CR | AR | 95% CI or SE | Cases, n= | CR | ASR | 95% CI or SE | ||
| Alberta | |||||||||||||
| First Nations | 162,921 (2014) | 1,373 | 838.99 | 716.01 | (SE 29.4) | 382 | 233.47 | 212.69 | (SE 24.11) | 73 | 44.81 | 45.59 | (SE 23.21) |
| Non-First Nations | 3,957,981 (2014) | 5,763 | 142.9 | 142.96 | (SE 1.91) | 1,824 | 45.23 | 45.85 | (SE 1.09) | 454 | 11.47 | 11.8 | (SE 0.57) |
| Ontario | |||||||||||||
| Northern Ontario | 70,994 (2012) | 449 | 632.9 | 615.6 | (558.2–673.0) | 131 | 184.7 | 183.7 | (151.9–15.4) | 28 | 39.4 | 39.1 | (24.5–53.7) |
| Ontario, General Population | 11,968,556 (2012) | 15,976 | 129.5 | 132.4 | (130.3–134.5) | 7,620 | 61.8 | 63 | (61.6–64.4) | 1,223 | 10.2 | 10.2 | (9.7–10.8) |
| Nunavut | |||||||||||||
| Inuit | 30,424 (2014) | – | – | – | – | – | – | 194 | (146–242) | 26 | 72.1 | 62.7 | – |
| Canada, General Population | 35,535,348 (2014) | – | – | – | – | – | – | 66 | (66–67) | 4,254 | 12 | 12 | – |
ED Emergency Department, CR Crude Rate, AR Age-Adjusted Rate, CI 95% Confidence Interval, SE Standard Error; Not reported (−); Population estimates are not those used in the rate calculations; Nunavut Inuit population is from the Nunavut Beareau of Statistics; ED and hospitalization data is for 2015; mortality data is for 2012 in Ontario, and 2014 elsewhere; hospitalization and suicide rates for Nunavut are calculated based on the event and population for the territory including Inuit and non-Inuit. DATA SOURCES: Statistics Canada [74], Canadian Institute for Health Information [77], Public Health Ontario [78], and Alberta Health [79]
Overview of national health databases used in suicide surveillance
| Outcome, Data Source, and Most Recent Year available | Definitions, Coding, and Information Sources | Geographic coverage | Population Exclusions | Indigenous identifiers | Other Challenges and Limitations |
|---|---|---|---|---|---|
| Suicide mortality | ICD-9 (pre 2000); ICD-10 (2000 - present). Death certificate from physician or funeral director. For ‘non-natural’ deaths, cause codes are determined by coroner/medical examiners | National | None | No | Under-reporting of suicide due to misclassification as unintentional injuries or undetermined intent; extent of misclassification may vary by jurisdiction. |
| Self-inflicted injuries, Hospitalization | ICD-10-CA. Does not distinguish between self-injury with suicidal intent (suicide attempt) and without suicidal intent (non-suicidal self injury); lacks suicide-specific codes. | National except Quebec (DAD), National (HMDB) | Patients admitted to acute care psychiatric hospitals; | No | Hospital separations include both discharges and deaths, therefore DAD has overlap with CVSD for suicide deaths that occurred during a hospitalization related to a suicide attempt; poor sensitivity in case coding contributes to undercounting. |
| Self-inflicted injuries, Emergency Department visit | ICD-10-CA. Does not distinguish between self injury with suicidal intent (suicide attempt) and without suicidal intent (non-suicidal self injury), and lacks suicide-specific codes; | 64% of all EDs; Complete coverage for AB, ON, and YT; No coverage for 5 provinces/territories (QC, NL, NB, NWT, and NU) | None | No | Poor sensitivity in case coding contributes to undercounting and thus under-estimates of the population burden of self-harm. |
| Self-inflicted injuries, Emergency Department visit | Registry-specific case definitions with narrative component; does not use ICD coding scheme. Patient/parent and physician completed forms, and medical record review | 17 hospitals (primarily urban, paediatric facilities) | Children that present to general hospitals; Adults aged 18 and older; Rural populations including Inuit, First Nations, and Métis living on reserve or in rural or northern communities; | No | Under-coverage of events with higher injury severity such as trauma and suicide attempts; reporting burden on patients and clinicians; Literacy and English/French language requirements; Population-based rate estimates not possible because of unknown denominators due to a lack of defined catchment |
| Suicide attempts | Standardized self-report questionnaire administered by telephone. Survey question: “Have you ever [and/or in the past 12 months] seriously attempted suicide?” | National sample, but elevated non-response rates in territories and rural regions | Excludes populations that tend to report higher rates of suicidal ideation and attempts: First Nations living on-reserve, military personnel, and institutionalized populations such as people in prison, hospital, or foster care. | Yes | n/a |
| Suicidal thoughts | Standardized self-report questionnaire administered by telephone. Survey question: “Have you ever [and/or in the past 12 months] seriously contemplated suicide?” | National sample, but elevated non-response rates in territories and rural regions | Excludes populations that tend to report higher rates of suicidal ideation and attempts: First Nations living on-reserve, military personnel, and institutionalized populations such as people in prison, hospital, or foster care. | Yes | n/a |