Table 3. Basic characteristics of 4 in-house GWAS samples.
| Characteristics | KCOS | OOS | COS | CFS |
|
|---|---|---|---|---|---|
| Cases | Controls | ||||
| Sample size | 2,286 | 1,000 | 1,627 | 350 | 350 |
| Population | Caucasian | Caucasian | Han Chinese | Han Chinese | Han Chinese |
| Female (%) | 75.59 | 50.10 | 50.71 | 64.57 | 50.57 |
| Age (yrs) | 51.37 ± 13.76 | 50.23 ± 18.24 | 34.49 ± 13.24 | 69.35 ± 7.41 | 69.54 ± 6.09 |
| Height (m) | 1.66 ± 0.08 | 1.71 ± 0.10 | 1.64 ± 0.08 | 1.63 ± 0.12 | 1.59 ± 0.10 |
| Weight (kg) | 75.27 ± 17.54 | 80.16 ± 17.79 | 60.12 ± 10.48 | 59.15 ± 12.05 | 59.61 ±10.84 |
| Spine BMD (g/cm2) | 1.02 ± 0.16 | 1.03 ± 0.16 | 0.95 ± 0.13 | — | — |
| Femoral neck BMD (g/cm2) | 0.80 ± 0.15 | 0.81 ± 0.14 | 0.81 ± 0.13 | — | — |
Notes: Data are shown as mean ± standard deviation.
Abbreviations: KCOS, Kansas-city osteoporosis study; OOS, Omaha osteoporosis study; COS, Chinese osteoporosis study; CFS, Chinese Fractures Study.