Stephanie Lino1, Helen Hopp Marshak2, R Patti Herring3, Juan Carlos Belliard4, Charles Hilliard5, Danielle Campbell6, Susanne Montgomery7. 1. Loma Linda University, School of Public Health, Loma Linda, CA 92350, United States. Electronic address: slino51783@gmail.com. 2. Academic Affairs, Loma Linda University, School of Public Health, Loma Linda, CA 92350, United States. 3. Health Promotion and Education, Loma Linda University, School of Public Health, Loma Linda, CA 92350, United States. 4. Global Health, Loma Linda University, School of Public Health, Loma Linda, CA 92350, United States. 5. College of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, United States. 6. Charles Drew University, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, United States. 7. Social Ecology and Social Policy, Loma Linda University, School of Behavioral Health, Loma Linda, CA 92350, United States.
Abstract
BACKGROUND: This cross-sectional study investigated whether the theory of planned behavior (TPB) constructs: attitudes, subjective norms, and perceived behavioral control were related to intention of dietary supplements use among African-American women living with Human Immunodeficiency Virus and/or Acquired Immune Deficiency Syndrome (HIV/AIDS). METHODS: A closed-ended questionnaire based on the TPB was utilized to explore the use of dietary supplements among a cohort of 153 HIV-positive African-American women. RESULTS: Overall, 45% of the respondents used dietary supplements to manage/control their HIV. Combined, attitudes, subjective norms and perceived behavioral control were significant predictors of intention toward dietary supplement use (69% of the variance explained, p<0.0001). Attitudes (β=0.23, p<0.001) and perceived behavioral control (β=0.45, p<0.0001) were found to be significant independent predictors of intention. Behavioral intention and proximal TPB constructs (attitudes, subjective norms, and perceived behavioral control), as well as their underlying beliefs about dietary supplements use, were all found to be significantly more positive in users of dietary supplements compared to non-users (p<0.001). CONCLUSIONS: Results showed that attitudes, subjective norms and perceived behavioral control are important predictors in the intention to use dietary supplements for control of HIV among African-American women. Implications from this study suggest that the TPB can be used to better identify and understand salient beliefs that surround intentions to use alternative therapies for management of disease. These beliefs can be used to develop interventions surrounding HIV treatment and care.
BACKGROUND: This cross-sectional study investigated whether the theory of planned behavior (TPB) constructs: attitudes, subjective norms, and perceived behavioral control were related to intention of dietary supplements use among African-American women living with Human Immunodeficiency Virus and/or Acquired Immune Deficiency Syndrome (HIV/AIDS). METHODS: A closed-ended questionnaire based on the TPB was utilized to explore the use of dietary supplements among a cohort of 153 HIV-positive African-American women. RESULTS: Overall, 45% of the respondents used dietary supplements to manage/control their HIV. Combined, attitudes, subjective norms and perceived behavioral control were significant predictors of intention toward dietary supplement use (69% of the variance explained, p<0.0001). Attitudes (β=0.23, p<0.001) and perceived behavioral control (β=0.45, p<0.0001) were found to be significant independent predictors of intention. Behavioral intention and proximal TPB constructs (attitudes, subjective norms, and perceived behavioral control), as well as their underlying beliefs about dietary supplements use, were all found to be significantly more positive in users of dietary supplements compared to non-users (p<0.001). CONCLUSIONS: Results showed that attitudes, subjective norms and perceived behavioral control are important predictors in the intention to use dietary supplements for control of HIV among African-American women. Implications from this study suggest that the TPB can be used to better identify and understand salient beliefs that surround intentions to use alternative therapies for management of disease. These beliefs can be used to develop interventions surrounding HIV treatment and care.
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