Purpose: This study examined the developmental trajectories of self-esteem and body mass index (BMI) from adolescence to mid-adulthood and the way the association between self-esteem and BMI changed during a 26-year follow-up. Methods: Participants of a Finnish cohort study in 1983 at 16 years (N = 2194) were followed up at ages 22 (N = 1656), 32 (N = 1471), and 42 (N = 1334) using postal questionnaires. Measures at each time point covered self-esteem and self-reported weight and height. Analyses were done using latent growth curve models (LGM) and difference scores. Results: In LGM analyses among females both the initial levels (r = −0.13) and slopes (r = -0.26) of the self-esteem and BMI trajectories correlated negatively. Among males, there were no significant correlations between self-esteem and BMI growth factors. The association between increasing BMI and decreasing self-esteem among females was strongest between ages 22 and 32 (r = −0.16), while among males, increases in BMI and self-esteem correlated positively (r = 0.11) during that period. Among females, cross-sectional correlations between self-esteem and BMI showed an increasing trend (p < 0.001) from age 16 (r = −0.07) to age 42 (r = −0.17), whereas among males negative correlation (r = −0.08) emerged only in mid-adulthood at age 42. Conclusion: Among females, higher and increasing BMI is associated with lower and more slowly increasing self-esteem. This association is not restricted to adolescent years but persists and gets stronger in mid-adulthood. Among males, associations are weaker but indicate more age-related differences. The results highlight the need for interventions that tackle weight-related stigma and discrimination, especially among women with higher body weight and size.
CITATION STYLE
Kiviruusu, O., Konttinen, H., Huurre, T., Aro, H., Marttunen, M., & Haukkala, A. (2016). Self-esteem and Body Mass Index from Adolescence to Mid-adulthood. A 26-year Follow-up. International Journal of Behavioral Medicine, 23(3), 355–363. https://doi.org/10.1007/s12529-015-9529-4
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