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Sleep problems in wave 1 as a predictor of sleep problems in wave 2, adjusting for potential confounders
| Odds-ratio | 95% CI | |
| Unadjusted (Sleep problems in Wave 1) | 6.04 | 2.96-12.33 |
| A Gender, age | 6.35 | 3.05-13.20 |
| B Income, education, and BMI (Wave 2) | 6.10 | 2.62-14.21 |
| C Parent -reported behavioural problems (Wave 1) | 4.57 | 2.04-10.23 |
| D Child-reported behavioural problems (Wave 2) | 4.77 | 2.01-11.36 |
| Fully adjusted model* | 5.41 | 1.59-18.40 |
* Adjusting for all the confounders listed above (A+B+C+D).
