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Table 4 Pooled mean differences of the four comparisons on the different sex hormone outcomes and sex hormone binding globulin (SHBG)

From: Effect of exercise and/or reduced calorie dietary interventions on breast cancer-related endogenous sex hormones in healthy postmenopausal women

Pooled effectsa

Treatment effect ratios (95% confidence interval)

Estrone

 Exercise vs control

0.97 (0.94–1.01)

 Exercise + diet vs control

0.90 (0.83–0.97)

 Diet vs control

0.95 (0.88–1.03)

 Exercise + diet vs diet

0.94 (0.88–1.01)

Total estradiol

 Exercise vs control

0.97 (0.94–1.00)

 Exercise + diet vs control

0.82 (0.75–0.90)

 Diet vs control

0.86 (0.77–0.95)

 Exercise + diet vs diet

0.96 (0.89–1.04)

Free estradiol

 Exercise vs control

0.95 (0.87–1.01)

 Exercise + diet vs control

0.73 (0.66–0.81)

 Diet vs control

0.77 (0.69–0.84)

 Exercise + diet vs diet

0.96 (0.87–1.06)

Total testosterone

 Exercise vs control

0.98 (0.95–1.01)

 Exercise + diet vs control

0.96 (0.89–1.04)

 Diet vs control

1.01 (0.94–1.09)

 Exercise + diet vs diet

0.95 (0.89–1.01)

Free testosterone

 Exercise vs control

0.97 (0.95–1.00)

 Exercise + diet vs control

0.86 (0.79–0.93)

 Diet vs control

0.91 (0.84–0.98)

 Exercise + diet vs diet

0.94 (0.88–1.00)

Androstenedione

 Exercise vs control

0.97 (0.94–1.00)

 Exercise + diet vs control

0.95 (0.80–1.12)

 Diet vs control

1.01 (0.93–1.11)

 Exercise + diet vs diet

0.94 (0.87–1.02)

SHBG

 Exercise vs control

1.03 (0.99–1.08)

 Exercise + diet vs control

1.23 (1.15–1.31)

 Diet vs control

1.20 (1.06–1.36)

 Exercise + diet vs diet

1.03 (0.97–1.09)

  1. a For readability reduced calorie diet is labeled as “diet”