Table 4.
Association between sleep issues and CEI levels from different adjusted models among plastic greenhouse vegetable farmers from Yinchuan, China, 2015–2017
| Model | Sleep duration (Short vs. Optimal)a | Sleep duration (Long vs. Optimal) a | Self-rated sleep qualityb | Hypnotic drug usec | Trouble falling asleepb | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | OR | 95% CI | IRR | 95% CI | OR | 95% CI | |
| Empty Model | ||||||||||
| Medium vs. Low | 1.32 | 0.89–1.96 | 1.03 | 0.74–1.43 | 1.37 | 1.04–1.81 | 0.57 | 0.24–1.38 | 1.64 | 1.14–2.38 |
| High vs. Low | 1.69 | 1.16–2.48 | 0.85 | 0.60–1.20 | 2.46 | 1.87–3.24 | 0.37 | 0.13–1.04 | 1.82 | 1.26–2.63 |
| Full Model | ||||||||||
| Medium vs. Low | 1.31 | 0.87–1.99 | 1.04 | 0.73–1.49 | 1.48 | 1.10–2.00 | 0.43 | 0.14–1.32 | 1.52 | 1.02–2.24 |
| High vs. Low | 1.56 | 1.02–3.38 | 1.11 | 0.76–1.64 | 2.5 | 1.83–3.40 | 0.49 | 0.19–1.24 | 1.74 | 1.16–2.62 |
Note: a: Parameter derived from multinomial logistic regression; b: Parameter derived from ordinal logistic regression; c: Parameter estimated by poisson regression
IRR: incidence-rate ratios