Table 3.
Relationship between sleep deprivation, characteristics of sleep quality, health behaviours and subjective health complaints by sex (logistic regression).
| OR (95% CI) | |||||
| Girls | Sleep deprivation | Sleep less | Difficulties falling asleep | Waking up tired | Waking up middle of the night |
| Physical activity Every day | 1.75 (1.01-3.03) | 1.64 (1.03-2.63) | 1.22 (0.64-2.34) | ||
| TV <4 hours/day | 0.60 (0.44-0.82) | ||||
| Fruit and vegetables Every day | 0.62 (0.45-0.86) | 0.79 (0.58-1.08) | 0.72 (0.58-0.88) | ||
| Drink alcohol No | 0.53 (0.39-0.71) | 0.69 (0.51-0.92) | 1.03 (0.80-1.33) | 0.68 (0.55-0.85) | 1.04 (0.75-1.44) |
| Smoke cigarettes No | 0.86 (0.59-1.25) | 0.67 (0.47-0.96) | 0.92 (0.65-1.29) | 0.88 (0.64-1.22) | 0.62 (0.41-0.94) |
| Headache Rarely/never | 0.82 (0.61-1.10) | 0.89 (0.66-1.20) | 0.62 (0.48-0.80) | 0.71 (0.58-0.88) | 0.47 (0.32-0.68) |
| Sadness Rarely/never | 0.91 (0.67-1.22) | 0.58 (0.43-0.78) | 0.50 (0.39-0.64) | 0.79 (0.64-0.97) | 0.46 (0.32-0.66) |
| Tiredness Rarely/never | 0.78 (0.55-1.12) | 0.51 (0.34-0.76) | 0.70 (0.52-0.95) | 0.63 (0.50-0.79) | 0.56 (0.34-0.91) |
| Being bullied No | 0.73 (0.50-1.07) | 0.84 (0.61-1.17) | 0.70 (0.47-1.04) | ||
| Boys | Sleep deprivation | Sleep less | Difficulties falling asleep | Waking up tired | Waking up middle of the night |
| Physical activity Every day | 2.30 (1.66-3.19) | 1.89 (1.39-2.55) | 2.18 (1.46-3.26) | ||
| TV <4 hours/day | 0.70 (0.50-0.96) | ||||
| Fruit and vegetables Every day | 1.07 (0.76-1.51) | 0.78 (0.56-1.08) | 0.83 (0.66-1.03) | ||
| Drink alcohol No | 0.59 (0.42-0.82) | 0.67 (0.49-0.92) | 0.80 (0.60-1.07) | 0.69 (0.55-0.86) | 1.09 (0.73-1.64) |
| Smoke cigarettes No | 1.17 (0.71-1.94) | 0.62 (0.40-0.95) | 0.81 (0.53-1.25) | 0.69 (0.48-0.99) | 0.58 (0.33-1.03) |
| Headache Rarely/never | 0.70 (0.50-0.99) | 0.66 (0.47-0.92) | 0.64 (0.47-0.87) | 0.82 (0.64-1.05) | 0.52 (0.34-0.80) |
| Sadness Rarely/never | 1.05 (0.72-1.53) | 0.87 (0.61-1.23) | 0.70 (0.51-0.96) | 0.93 (0.72-1.21) | 0.60 (0.39-0.94) |
| Tiredness Rarely/never | 0.79 (0.56-1.11) | 0.93 (0.67-1.29) | 1.15 (0.85-1.54) | 0.85 (0.69-1.06) | 1.36 (0.89-2.07) |
| Being bullied No | 0.76 (0.51-1.13) | 0.70 (0.49-1.00) | 0.52 (0.33-0.81) | ||
OR, odds ratio; CI, confidence interval
Reference categories: physical activity, ≤6 days/week; TV, ≥4 hours/day; Fruit and vegetables, not every day; Drink alcohol, yes; Smoke cigarettes, yes; Headache, at least once a month; Sadness, at least once a month; Tiredness, at least once a month; Being bullied, yes.
Analyses were adjusted for age and all other health behaviours.
Significant odds are in bold.