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Longitudinal Changes in Sex Hormone Binding Globulin (SHBG) and Risk of Incident Diabetes: The Study of Women’s Health Across the Nation (SWAN)
Diabetes Care ( IF 16.2 ) Pub Date : 2024-02-06 , DOI: 10.2337/dc23-1630 Monique M. Hedderson 1 , Angela Capra 1 , Catherine Lee 1 , Laurel A. Habel 1 , Jennifer Lee 2 , Ellen B. Gold 3 , Sylvia E. Badon 1 , Susanna D. Mitro 1 , Samar R. El Khoudary 4
Diabetes Care ( IF 16.2 ) Pub Date : 2024-02-06 , DOI: 10.2337/dc23-1630 Monique M. Hedderson 1 , Angela Capra 1 , Catherine Lee 1 , Laurel A. Habel 1 , Jennifer Lee 2 , Ellen B. Gold 3 , Sylvia E. Badon 1 , Susanna D. Mitro 1 , Samar R. El Khoudary 4
Affiliation
OBJECTIVE To investigate the associations of longitudinal changes in sex hormone binding globulin (SHBG) and testosterone (T) over the menopause transition with the risk of diabetes. RESEARCH DESIGN AND METHODS We followed 2,952 participants in the Study of Women’s Health Across the Nation (SWAN) who were premenopausal or early perimenopausal and diabetes-free at baseline. SHBG,T, and estradiol (E2) levels were measured at up to 13 follow-up visits (over up to 17 years). We used complementary log-log–based discrete-time survival models anchored at baseline. RESULTS Diabetes developed in 376 women. A 5-unit increase in time-varying SHBG was associated with a 10% reduced risk of diabetes (hazard ratio [HR] 0.91, 95% CI 0.87–0.95), adjusting for covariates, and baseline SHBG,T, and E2 levels. Time-varying T was not associated with diabetes risk. Compared with the lowest quartile for annual rate of change of SHBG since baseline (quartile [Q] 1 −92.3 to −1.5 nmol/L), all other quartiles were associated with a decreased risk of diabetes adjusting for covariates and baseline SHBG; associations persisted after adjusting for rate of change of T and E2 (Q2 [> −1.5 to −0.2 nmol/L] HR 0.33, 95% CI 0.23–0.48; Q3 [> −0.2 to 1.3 nmol/L] HR 0.37, 95% CI 0.25–0.55; Q4 [>1.3 to 82.0 nmol/L] HR 0.43, 95% CI 0.30–0.63). CONCLUSIONS Increasing levels of SHBG over the menopause transition were associated with a decreased risk of incident diabetes. Stable to increasing rates of change in SHBG were also independently associated with a decreased risk of diabetes compared with decreasing rates of change, suggesting SHBG may affect glucose through a mechanism beyond androgenicity.
更新日期：2024-02-06
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