Table 2 Logistic regression analysis of short sleep duration
Odds Ratio | 95.0% CI (Lower) | 95.0% CI (Upper) | |
|---|---|---|---|
Male (ref. female) | 0.95 | 0.89 | 1.09 |
Age (ref. ≤ 29) | |||
30–39 | 1.31** | 1.19 | 1.44 |
40–49 | 1.65** | 1.47 | 1.86 |
≥ 50 | 1.90** | 1.65 | 2.20 |
Marital status (ref. not married) | |||
Married | 0.94 | 0.84 | 1.05 |
Divorced or separated | 1.18 | 0.95 | 1.48 |
Children (ref. None) | |||
One | 0.99 | 0.89 | 1.09 |
More than one | 1.06 | 0.94 | 1.20 |
Educational level (ref. Bachelor’s degree) | 1.03 | 0.96 | 1.10 |
Working hours per week | 1.01** | 1.01 | 1.01 |
Department (ref. General surgery subspecialty) | |||
General medicine | 1.22* | 1.10 | 1.34 |
General surgery | 1.10 | 0.98 | 1.23 |
Gynecology and obstetrics | 1.12* | 1.01 | 1.25 |
General pediatrics | 1.06 | 0.93 | 1.20 |
Emergency medicine | 1.21* | 1.01 | 1.46 |
Internal medicine subspecialty | 0.99 | 0.89 | 1.09 |
Administration position (ref. No) | 1.00 | 0.90 | 1.10 |
Night shift per month (ref. 0–4 times) | 1.31** | 1.23 | 1.40 |
Workload (ref. Mild level) | |||
Moderate | 1.83** | 1.62 | 2.08 |
Heavy level | 3.73** | 3.30 | 4.22 |
Hospital type (ref. General) | |||
Traditional Chinese Medicine | 1.02 | 0.95 | 1.10 |
Other special types | 1.04 | 0.96 | 1.12 |
Region (ref. West China) | |||
East China | 1.14** | 1.07 | 1.23 |
Middle China | 0.92* | 0.85 | 0.99 |