Risk factors for osteoporosis in postmenopausal North Korean women identified by multivariate logistic regression analysis
| Variables | OR | 95% CI | P value |
| Age | 1.35 | 0.98 to 1.86 | 0.063 |
| Weight | 0.84 | 0.74 to 0.95 | 0.007 |
| Age at menarche | 1.45 | 0.96 to 2.19 | 0.077 |
| Age at escape from North Korea | 0.82 | 0.64 to 1.06 | 0.129 |
| Years living in South Korea | 0.89 | 0.63 to 1.25 | 0.489 |