Variables | Urban (n = 773) | P | Rural (n = 767) | P | ||
---|---|---|---|---|---|---|
Postmenopausal (n = 476) | Premenopausal (n = 297) | Postmenopausal (n = 470) | Premenopausal (n = 297) | |||
BMI (kg/m2), mean (S.E) | 25.38 (0.25) | 23.13 (0.32) |  < 0.001 | 25.05 (0.23) | 23.22 (0.30) |  < 0.001 |
BMI (kg/m2), n (%) |  |  |  < 0.001 |  |  |  < 0.001 |
Underweight (< 18.5) | 6 (1.04) | 6 (4.54) |  | 8 (2.15) | 16 (8.37) |  |
Normal (18.5–23.9) | 161 (34.77) | 163 (61.85) |  | 173 (36.92) | 145 (54.24) |  |
Overweight (≥ 24.0) | 309 (64.19) | 128 (33.61) |  | 289 (60.93) | 137 (37.39) |  |
Osteoporosis, n (%) |  |  |  < 0.001 |  |  |  < 0.001 |
No | 340 (73.17) | 285 (97.89) | Â | 322 (67.47) | 263 (93.23) | Â |
Yes | 136 (26.83) | 12 (2.11) | Â | 148 (32.53) | 34 (6.77) | Â |
Low BMD, n (%) |  |  |  < 0.001 |  |  |  < 0.001 |
No | 245 (52.98) | 226 (79.92) | Â | 229 (47.17) | 201 (70.39) | Â |
Yes | 231 (47.02) | 71 (20.08) | Â | 241 (52.83) | 96 (29.61) | Â |
Lumbar spine L1 (g/cm2), mean (S.E) | 0.81 (0.01) | 1.00 (0.01) |  < 0.001 | 0.74 (0.01) | 0.92 (0.01) |  < 0.001 |
Lumbar spine L2 (g/cm2), mean (S.E) | 0.86 (0.01) | 1.07 (0.01) |  < .001 | 0.81 (0.01) | 1.02 (0.01) |  < 0.001 |
Lumbar spine L3 (g/cm2), mean (S.E) | 0.94 (0.01) | 1.15 (0.01) |  < 0.001 | 0.87 (0.01) | 1.09 (0.01) |  < 0.001 |
Lumbar spine L4 (g/cm2), mean (S.E) | 0.95 (0.01) | 1.12 (0.01) |  < 0.001 | 0.91 (0.01) | 1.09 (0.01) |  < 0.001 |
Greater trochanter (g/cm2), mean (S.E) | 0.57 (0.01) | 0.63 (0.01) |  < 0.001 | 0.53 (0.01) | 0.62 (0.01) |  < 0.001 |
Total hip (g/cm2), mean (S.E) | 0.79 (0.01) | 0.89 (0.01) |  < 0.001 | 0.75 (0.01) | 0.88 (0.01) |  < 0.001 |