Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2018
Racial discrimination, body mass index, and insulin resistance: A longitudinal analysis.
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Brody Gene H, Yu Tianyi, Chen Edith, Ehrlich Katherine B, Miller Gregory E
Аннотация
OBJECTIVE: To examine prospective relations of perceived racial discrimination at ages 16-18 with body mass index (BMI) at ages 19-21 and insulin resistance (IR) at ages 25 and 27 among Black youth in the rural South, and to determine whether BMI connected discrimination to IR as a mediator.
METHOD: Participants were 315 African American adolescents in rural counties in Georgia who provided data on their perceptions of discrimination during adolescence. BMI was measured during a yearly home visit, and a certified phlebotomist drew a fasting blood sample from which IR was measured.
RESULTS: The data analysis, with all confounding variables controlled, revealed that, over time, (a) discrimination was associated positively with both BMI and IR; (b) BMI was associated positively with IR; and (c) BMI acted as a mediator connecting discrimination with IR.
CONCLUSIONS: The findings are consistent with the hypothesis that exposure to discrimination presages IR through its effects on BMI. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
METHOD: Participants were 315 African American adolescents in rural counties in Georgia who provided data on their perceptions of discrimination during adolescence. BMI was measured during a yearly home visit, and a certified phlebotomist drew a fasting blood sample from which IR was measured.
RESULTS: The data analysis, with all confounding variables controlled, revealed that, over time, (a) discrimination was associated positively with both BMI and IR; (b) BMI was associated positively with IR; and (c) BMI acted as a mediator connecting discrimination with IR.
CONCLUSIONS: The findings are consistent with the hypothesis that exposure to discrimination presages IR through its effects on BMI. (PsycINFO Database Record (c) 2018 APA, all rights reserved).