Table 1.
Baseline Characteristics of Individuals Who Developed Hip Fractures (Cases) and Those Who Remained Free of Hip Fractures (Controls), the Singapore Chinese Health Study
| Characteristics | Cases | Controls | p Value a |
|---|---|---|---|
| Men | |||
| No. of subjects | 55 | 55 | |
| Age (years) at blood draw, mean (SD) | 69.1 (7.3) | 68.8 (7.0) | 0.83 |
| Dialect group | 1.00 | ||
| Hokkien, n (%) | 25 (45.5%) | 25 (45.5%) | |
| Cantonese, n (%) | 30 (54.5%) | 30 (54.5%) | |
| Body mass index (kg/m2), mean (SD) | 21.5 (3.7) | 22.9 (2.7) | 0.032 |
| History of smoking | 0.083 | ||
| Never smokers, n (%) | 19 (34.5%) | 28 (50.9%) | |
| Ever smokers, n (%) | 36 (65.5%) | 27 (49.1%) | |
| History of diabetes mellitus, n (%) | 8 (14.6%) | 8 (14.6%) | 1.00 |
| Women | |||
| No. of subjects | 119 | 119 | |
| Age (years) at blood draw, mean (SD) | 67.5 (6.6) | 67.2 (6.7) | 0.69 |
| Dialect group | 1.00 | ||
| Hokkien, n (%) | 69 (58.0%) | 69 (58.0%) | |
| Cantonese, n (%) | 50 (42.0%) | 50 (42.0%) | |
| Body mass index (kg/m2), mean (SD) | 23.1 (3.9) | 23.6 (3.9) | 0.29 |
| History of smoking | 0.37 | ||
| Never smokers, n (%) | 106 (89.1%) | 110 (92.4%) | |
| Ever smokers, n (%) | 13 (10.9%) | 9 (7.6%) | |
| History of diabetes mellitus, n (%) | 35 (29.4%) | 10 (8.4%) | <0.001 |
a
Two‐sided p value was derived from t test for continuous variables and from chi‐square test for categorical variables.