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Table 2 Descriptive characteristics (Mean ± SD) for the selected 870 subjects at baseline

From: The effect of calcium and vitamin D supplementation on obesity in postmenopausal women: secondary analysis for a large-scale, placebo controlled, double-blind, 4-year longitudinal clinical trial

Variables Total
n= 870
Placebo
n= 206
Ca-only
n= 328
Ca + D
n= 336
P
Age (y) 66.0 ± 6.9 65.2 ± 6.5 66.0 ± 6.6 66.5 ± 7.5 0.13
Body mass index (kg/m2) 28.8 ± 5.3 28.8 ± 5.3 28.9 ± 5.4 28.7 ± 5.2 0.96
Trunk fat (kg) 14.3 ± 4.7 14.3 ± 4.8 14.5 ± 4.8 14.1 ± 4.6 0.53
Trunk lean (kg) 21.9 ± 3.1 22.1 ± 2.9 22.0 ± 3.2 21.8 ± 3.1 0.37
Percentage of trunk fat (%) 38.6 ± 6.5 38.3 ± 6.6 38.9 ± 6.8 38.5 ± 6.1 0.55
25(OH)D (nmol/L) 73.2 ± 19.9 73.6 ± 20.7 73.0 ± 20.4 73.1 ± 18.8 0.93
Dietary calcium intake (mg/d) 670 ± 389 671 ± 406 681 ± 376 658 ± 392 0.74
Habitual calcium supplement (mg/d) 347 ± 342 334 ± 318 342 ± 354 359 ± 345 0.68
Total calcium intake (mg/d) 1016 ± 520 1004 ± 518 1023 ± 508 1016 ± 535 0.92
Habitual vitamin D supplement (IU/d) 198 ± 189 189 ± 194 206 ± 186 196 ± 188 0.57
  1. Note: P values were calculated by analysis of variance (ANOVA) to compare the means of variables among the placebo, Ca-only, and Ca + D groups.