Prospective association of serum androgens and sex hormone-binding globulin with subclinical cardiovascular disease in young adult women: the "Coronary Artery Risk Development in Young Adults" women's study.

Academic Article

Abstract

  • CONTEXT: The role of endogenous androgens and SHBG in the development of cardiovascular disease in young adult women is unclear. OBJECTIVE: Our objective was to study the prospective association of serum androgens and SHBG with subclinical coronary and carotid disease among young to middle-aged women. DESIGN AND SETTING: This was an ancillary study to the Coronary Artery Risk Development in Young Adults (CARDIA) study, a population-based multicenter cohort study with 20 yr of follow-up. PARTICIPANTS: Participants included 1629 women with measurements of serum testosterone and SHBG from yr 2, 10, or 16 and subclinical disease assessment at yr 20 (ages 37-52 yr). MAIN OUTCOME MEASURES: Coronary artery calcified plaques (CAC) and carotid artery intima-media thickness (IMT) were assessed at yr 20. The IMT measure incorporated the common carotid arteries, bifurcations, and internal carotid arteries. RESULTS: SHBG (mean of yr 2, 10, and 16) was inversely associated with the presence of CAC (multivariable adjusted odds ratio for women with SHBG levels above the median = 0.59; 95% confidence interval = 0.40-0.87; P = 0.008). SHBG was also inversely associated with the highest quartile of carotid-IMT (odds ratio for women with SHBG levels in the highest quartile = 0.56; 95% confidence interval = 0.37-0.84; P for linear trend across quartiles = 0.005). No associations were observed for total or free testosterone with either CAC or IMT. CONCLUSION: SHBG levels were inversely associated with subclinical cardiovascular disease in young to middle-aged women. The extent to which low SHBG is a risk marker or has its own independent effects on atherosclerosis is yet to be determined.
  • Keywords

  • Adolescent, Adult, Androgens, Calcinosis, Cardiovascular Diseases, Case-Control Studies, Cohort Studies, Coronary Artery Disease, Disease Progression, Female, Follow-Up Studies, Humans, Middle Aged, Prospective Studies, Risk Factors, Sex Hormone-Binding Globulin, Young Adult
  • Digital Object Identifier (doi)

    Author List

  • Calderon-Margalit R; Schwartz SM; Wellons MF; Lewis CE; Daviglus ML; Schreiner PJ; Williams OD; Sternfeld B; Carr JJ; O'Leary DH
  • Start Page

  • 4424
  • End Page

  • 4431
  • Volume

  • 95
  • Issue

  • 9