|
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
