From: Effect of urbanization on bone mineral density: A Thai epidemiological study
Urban (Bangkok) | Rural (Khon Kean) | Mean Difference (95% CI) | P value | |
---|---|---|---|---|
Men | ||||
Number of Subjects | 159 | 181 | ||
Age (years) | 49.6 ± 17.5 | 49.1 ± 17.1 | 0.5 (-3.2, 4.2) | 0.800 |
Body weight (kg) | 64.3 ± 11.1 | 58.2 ± 8.8 | 6.1 (3.0, 8.1) | <0.001 |
Height (cm) | 165.5 ± 6.3 | 161.2 ± 5.9 | 4.3 (3.0, 5.6) | <0.001 |
Body Mass Index (kg/m2) | 23.4 ± 3.6 | 22.4 ± 2.8 | 1.0 (0.3, 1.7) | 0.003 |
Bone Mineral Density (g/cm2) | ||||
Femoral neck | 0.87 ± 0.16 | 0.96 ± 0.18 | -0.09 (-0.13, 0.05) | <0.001 |
Lumbar spine | 1.12 ± 0.17 | 1.11 ± 0.16 | 0.01 (-0.03, 0.04) | 0.64 |
Women | ||||
Number of Subjects | 252 | 255 | ||
Age (years) | 50.4 ± 15.1 | 50.6 ± 15.9 | -0.2 (-2.9, 2.4) | 0.853 |
Body weight (kg) | 55.5 ± 8.9 | 55.9 ± 10.5 | -0.4 (-2.0, 1.4) | 0.718 |
Height (cm) | 154.7 ± 5.4 | 152.1 ± 5.2 | 2.6 (1.6, 3.5) | <0.001 |
Body Mass Index (kg/m2) | 23.2 ± 3.8 | 24.1 ± 4.0 | -0.9 (-1.5, -0.1) | 0.017 |
Bone Mineral Density (g/cm2) | ||||
Femoral neck | 0.79 ± 0.13 | 0.87 ± 0.19 | -0.08 (-0.11, -0.05) | <0.001 |
Lumbar spine | 1.05 ± 0.18 | 1.01 ± 0.21 | 0.04 (-0.11, 0.08) | 0.16 |