Table 2 Univariate and age-adjusted logistic regression models for frailty
Unadjusted | Age-adjusted | |||
|---|---|---|---|---|
Factors | Odds Ratio (95% CI) | p value | Odds Ratio (95% CI) | p value |
Three groups by CART analysis | ||||
Non-user with high 25 (OH) D | 1.0 (ref) | – | 1.0 (ref) | – |
Non-user with low 25 (OH) D | 3.11 (1.11–8.72) | 0.03 | 4.28 (1.44–12.68) | 0.009 |
Supplement user | 13.05 (2.98–57.25) | 0.001 | 9.90 (2.18–44.86) | 0.003 |
25 (OH) D (ng/mL) | 0.98 (0.95–1.02) | 0.39 | – | – |
Age (years) | 1.06 (1.03–1.10) | <0.001 | – | – |
Body mass index | 1.01 (0.95–1.07) | 0.84 | – | – |
Education (year) | 0.90 (0.76–1.08) | 0.26 | – | – |
Ethnicity | ||||
White | 1.0 (ref) | – | – | – |
Asian/PI | 2.13 (0.92–4.92) | 0.08 | – | – |
Others | 3.51 (0.44–27.87) | 0.24 | – | – |
Smoking | ||||
Never | 1.0 (ref) | – | – | – |
Past | 1.59 (0.68–3.74) | 0.29 | – | – |
Current | 0.94 (0.32–2.73) | 0.91 | – | – |
Alcohol | ||||
Never | 1.0 (ref) | – | – | – |
Past | 1.12 (0.45–2.81) | 0.81 | – | – |
Current | 0.70 (0.27–1.78) | 0.45 | – | – |