Variables associated with poor sleep. Odds ratios (OR) adjusted for all other variables. Final model abridged4-150
| Variable | Total | n (%) | OR (95% CI) | p Value |
|---|---|---|---|---|
| Wheeze | <0.001 | |||
| No wheeze | 12 129 | 159 (1.3) | 1.00 | |
| Occasional wheeze | 1 412 | 31 (2.2) | 1.88 (1.27–2.79) | |
| Persistent wheeze | 667 | 37 (5.5) | 3.85 (2.65–5.60) | |
| Not known how often | 164 | 6 (3.7) | 2.42 (1.04–5.60) | |
| Ethnic background | 0.02 | |||
| White (Scottish) | 3 783 | 41 (1.1) | 1.00 | |
| White (English) | 5 788 | 80 (1.4) | 1.21 (0.83–1.76) | |
| White (English inner city areas) | 1 720 | 46 (2.7) | 1.88 (1.21–2.92) | |
| Afro-Caribbean | 731 | 12 (1.6) | 0.96 (0.49–1.89) | |
| Indian subcontinent | 1 772 | 45 (2.5) | 1.80 (1.14–2.83) | |
| Others | 578 | 9 (1.6) | 1.03 (0.49–2.16) | |
| Birth order | 0.025 | |||
| First | 4 944 | 70 (1.4) | 1.00 | |
| Second or third | 6 434 | 89 (1.4) | 1.02 (0.73–1.42) | |
| Fourth or after | 1 551 | 36 (2.3) | 1.57 (0.99–2.49) | |
| Not known | 1 443 | 38 (2.6) | 1.90 (1.17–3.08) |
↵4-150 Adjusted for age. As explained in the text other variables were associated with poor sleep, but only with the “not known” category.
CI = confidence interval.