Table 3. The association of SDB clusters with overweight across childhood and adolescence. N=1,844.
| SDB clusters | |||||
|---|---|---|---|---|---|
| No symptoms | Peak at 6 months | Peak at 18 months | Worst case | Late symptoms | |
| OR (95% CI)b | OR (95% CI) | OR (95% CI) | OR (95% CI) | ||
| Minimally adjusted results a | |||||
| Obesity at age 7c |
1 (ref) | 0.88 (0.51 to 1.51) P=0.63 |
0.91 (0.47 to 1.78) P=0.79 |
2.15 (1.17 to 3.96) P=0.01 |
1.75 (1.12 to 2.72) P=0.01 |
| Obesity at age 10 |
1 (ref) | 1.05 (0.70 to 1.57) P=0.82 |
1.04 (0.63 to 1.72) P=0.89 |
1.90 (1.14 to 3.16) P=0.01 |
1.45 (1.00 to 2.10) P=0.05 |
| Obesity at age 15 |
1 (ref) | 0.87 (0.56 to 1.35) P=0.54 |
1.17 (0.71 to 1.92) P=0.54 |
2.18 (1.31 to 3.64) P=0.003 |
1.60 (1.10 to 2.31) P=0.01 |
| Confounder adjusted results d | |||||
| Obesity at age 7c |
1 (ref) | 0.83 (0.47 to 1.47) P=0.53 |
0.91 (0.46 to 1.83) P=0.79 |
2.08 (1.05 to 4.11) P=0.04 |
1.78 (1.11 to 2.85) P=0.02 |
| Obesity at age 10 |
1 (ref) | 1.02 (0.67 to 1.56) P=0.92 |
1.00 (0.59 to 1.69) P=1.00 |
1.76 (1.01 to 3.08) P=0.05 |
1.40 (0.95 to 2.07) P=0.09 |
| Obesity at age 15 |
1 (ref) | 0.86 (0.54 to 1.36) P=0.52 |
1.14 (0.68 to 1.92) P=0.62 |
2.17 (1.24 to 3.81) P=0.01 |
1.58 (1.07 to 2.35) P=0.02 |
| Confounder adjusted results with additional adjustment for sleep duration e | |||||
| Obesity at age 7c |
1 (ref) | 0.82 (0.46 to 1.46) P=0.51 |
0.91 (0.45 to 1.84) P=0.79 |
2.08 (1.04 to 4.17) P=0.04 |
1.78 (1.11 to 2.87) P=0.02 |
| Obesity at age 10 |
1 (ref) | 1.03 (0.67 to 1.57) P=0.91 |
0.97 (0.57 to 1.66) P=0.93 |
1.79 (1.02 to 3.16) P=0.04 |
1.38 (0.93 to 2.05) P=0.11 |
| Obesity at age 15 |
1 (ref) | 0.87 (0.55 to 1.38) P=0.55 |
1.12 (0.66 to 1.90) P=0.66 |
2.25 (1.27 to 3.97) P=0.01 |
1.56 (1.05 to 2.33) P=0.03 |
Analyses are adjusted only for child’s sex and age at BMI assessment
Odds ratios (95% confidence intervals) - compare the odds of Obesity v.normal BMI, with each SDB cluster compared with the ‘no symptoms’ cluster
Obesity - defined as BMI greater than the 95% percentile for age and sex, according to the International Obesity Task Force. Underweight children are excluded from these analyses
Analyses are adjusted for child’s sex, age at BMI/height assessment and birth weight, child’s estimated weight and height at 6 months, maternal education, age, parity and pre-pregnancy BMI, and tonsil/adenoidectomy.
Analyses are adjusted for the same as above, with the addition of sleep duration (at 18 months, 2.5, 4.75, 5.75 and 6.75 years). Each measure of sleep duration is treated as a categorical variable; ≤10th centile, >10th and <90th centile, and ≥90th centile.