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Table 3 Association between quantitative ultrasound (QUS) parameters and hormonal factors

From: Menstrual irregularity and bone mass in premenopausal women: Cross-sectional associations with testosterone and SHBG

  Unadjusted model Adjusted model
  (n = 382)
β (95% CI)
Model 1 (n = 358)
β (95% CI)
Model 2 (n = 358)
β (95% CI)
BUA    
Testosterone 0.15 (0.04, 0.24) 0.14 (0.04, 0.25) 0.13 (0.03, 0.24)
SHBG -0.14 (-0.24, -0.04) -0.07 (-0.19, 0.05) -0.05 (-0.17, 0.06)
FAI 0.18 (0.08, 0.28) 0.14 (0.03, 0.26) 0.13 (0.01, 0.24)
SOS    
Testosterone 0.11 (0.01, 0.21) 0.13 (0.03, 0.24) 0.12 (0.02, 0.23)
SHBG -0.13 (-0.23, -0.03) -0.16 (-0.27, -0.04) -0.14 (-0.26, -0.02)
FAI 0.16 (0.06, 0.26) 0.20 (0.08, 0.31) 0.18 (0.06, 0.29)
QUI    
Testosterone 0.12 (0.02, 0.22) 0.14 (0.03, 0.24) 0.13 (0.02, 0.23)
SHBG -0.14 (-0.24, -0.04) -0.13 (-0.25, -0.01) -0.11 (-0.23, 0.01)
FAI 0.17(0.07, 0.27) 0.18 (0.07, 0.29) 0.16 (0.05, 0.28)
  1. BUA = broadband ultrasound attenuation. SOS = speed of sound. QUI = quantitative ultrasound index. SHBG = sex hormone-binding globulin. FAI = free androgen index. QUS measures and hormonal parameters were log transformed before converted into standardized variables. β = standardised beta coefficients. Model 1 adjusted for age, BMI and smoking. Model 2 further adjusted for menstrual cycle pattern. Bold denotes significant association (P < 0.05).