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Table 3 Relative contribution of age, body weight, testosterone, and estradiol levels to variation in bone mineral density at the femoral neck and lumbar spine

From: Quantification of the relative contribution of estrogen to bone mineral density in men and women

Predictor

Men

Women

Femoral neck BMD

Lumbar spine BMD

Femoral neck BMD

Lumbar spine BMD

Age

0.331

0.035

0.279

0.194

(0.246 – 0.409)

(0.01 – 0.09)

(0.227 – 0.331)

(0.155 – 0.239)

Weight

0.202

0.204

0.065

0.067

(0.125 – 0.276)

(0.120 – 0.294)

(0.036 – 0.114)

(0.032 – 0.136)

Log (testosterone)

0.003

0.005

0.029

0.031

(0.001 – 0.044)

(0.001 – 0.056)

(0.1017 – 0.051)

(0.017 – 0.054)

Log (estradiol)

0.025

0.012

0.113

0.117

(0.004 – 0.078)

(0.001 – 0.058)

(0.081 – 0.153)

(0.085 – 0.159)

  1. Note: The data are shown in percentage and 95% confidence interval in brackets. For example, age accounted for 33.1% of the variation in femoral neck BMD in men. In the presence of age, weight, and testosterone, estradiol further accounted for 2.5% of the variation in femoral neck BMD.