Table 3.

Means and changes in insulin, glucose, and HOMA2 in women adherent to the study protocol

Geometric mean
Baseline4 mo12 mo% change 0–4 mo% change 0–12 moβa (95% CI)
Insulin, μU/mL
 Control6.956.646.80−4.51−2.211.06 (0.93–1.20)
 Exercise6.707.186.647.12−0.96
Glucose, mmol/L
 Control5.195.181.15−0.14−0.641.01 (0.99–1.03)
 Exercise5.255.305.230.98−0.35
HOMA2
 Control0.790.750.77−4.57−2.421.06 (0.93–1.21)
 Exercise0.760.820.767.33−0.95

NOTE: In total, 137 women were considered in this analysis (n = 60 in the intervention, and n = 77 in the control group). Follow-up data of three women in the control group were missing.

Adherence is defined as >70% presence in sports classes for the exercise group, and not started a formal exercise or weight loss program in the control group.

  • aThe β (95% CI) is the treatment effect ratio representing the overall intervention effect on metabolic variable (adjusted for baseline), including changes from baseline to 4 months and 4 to 12 months. Because metabolic variables were log-transformed for the analysis, the regression coefficient is the anti-logarithm of the original coefficient. Therefore, the anti-logarithm of the coefficient is a ratio that indicates whether the hormone level is, on average, higher in the intervention group compared with controls (>1) or lower (<1); e.g., 1.01 indicates that the metabolic variable is on average 1% higher in the intervention group compared with controls.