Table 1.
Multivariate analysis of risk factors for nocturia (two or more voids/night) in Japanese women
| OR | 95% CI | P‐value | |
|---|---|---|---|
| Age, y | |||
| ≤39 | Ref. | ||
| 40‐44 | – | – | .839 |
| 45‐49 | – | – | .310 |
| 50‐54 | 2.9 | – | .059 |
| 55‐59 | 5.0 | 1.5‐5.3 | .001 |
| 60‐64 | 7.0 | 2.7‐9.2 | <.001 |
| 65‐69 | 8.4 | 3.8‐12.6 | <.001 |
| 70‐74 | 7.7 | 4.6‐15.3 | <.001 |
| 75‐79 | 13.3 | 4.2‐14.3 | <.001 |
| ≥80 | 7.2‐24.8 | <.001 | |
| BMI, kg/m2 | |||
| 18.5‐24.9 (normal) | Ref. | ||
| <18.5 (underweight) | 1.5 | 1.1‐1.9 | .005 |
| 25.0‐26.9 (overweight) | 1.4 | 1.1‐1.8 | .007 |
| ≥27.0 (obesity) | 1.8 | 1.4‐2.4 | <.001 |
| Sleep disturbance | 6.0 | 3.3‐10.8 | <.001 |
| Arteriosclerosis | 2.1 | 1.1‐4.1 | .029 |
| Chronic pulmonary disease | 1.7 | 1.3‐2.3 | .001 |
| Cerebrovascular disease | 1.7 | 1.2‐2.4 | .004 |
| Hypertension | 1.3 | 1.1‐1.6 | .002 |
| Diabetes mellitus | 1.4 | 1.0‐1.8 | .083 |
| Cardiovascular disease | – | – | .920 |
| Hepatic disease | – | – | .826 |
| Renal disease | – | – | .362 |
Abbreviations: CI, confidence interval; OR, odds ratio.