Table 5: Relationship between bone markers and demographic, nutritional, or hormonal parameters (univariate regression analyses).

Variables Serum osteocalcin ( )Urinary deoxypyridinoline ( )
Regres. coef.
(95% CI)
univar. Regres. coef.
(95% CI)
univar.

Age (yrs) −0.114 (−0.600; 0.373)ns −0.349 (−0.716; 0.017)0.067%
Disease duration (yrs)−0.205 (−0.989; 0.580) ns −0.520 (−1.049; −0.008)0.0535%
Total duration of amenorrhea (months) 0.024 (−0.077; 0.125) ns0.000 (−0.078; 0.08)ns
BMI (Kg/m2) 3.157 (1.416; 4.898) 0.001 24%−0.450 (−1.561; 0.660)ns
IGF-I (μg/mL): 0.040 (−0.001; 0.08) 0.0588%−0.002 (−0.031; 0.027)ns
IGFBP-3 (mg/mL)3.76 (0.630; 6.889)0.02124%1.0 (−1.319; 3.314)ns
Estrogen use−2.342 (−10.121; 5.436)ns−4.702 (−9.34; −0.059)0.058%
Parathyroid hormone (pmol/L)0.831 (−3.268; 1.604)ns−1.743 (−3.014; −0. 472)0.0114%
25-Hydroxyvitamin D (nmol/L)−0.103 (−0.198; −0.009)0.0312%−0.039 (−0.082; 0.002)0.0638%
Protein intake (g/kg of body weight × d)−1.996 (−5.116; 1.124)ns0.027 (−3.080; 3.134)ns
Calcium intake (mg/d)−0.000 (−0.006; 0.006)ns0.000 (−0.006; 0.004)ns