Table 3.
Baseline insomnia severity and its associated factor scores by weight group, stratified by age.
| Healthy Weight | Overweight | Obese | Kruskal-Wallis H | P | |
|---|---|---|---|---|---|
| Children, Ages 2–10.9 years | |||||
| PISI total score | 17.38 (6.08) | 17.09 (5.49) | 18.05 (6.02) | 1.96 | .376 |
| PISI factor 1 | 9.30 (4.00) | 8.98 (4.13) | 9.59 (3.76) | 1.13 | .569 |
| PISI factor 2 | 8.46 (3.57) | 8.39 (3.17) | 8.72 (3.52) | 0.64 | .725 |
| PISI DS | 2.43 (1.59) | 2.43 (1.58) | 2.72 (1.62) | 3.32 | .191 |
| Adolescents, Ages 11–18 years | |||||
| PISI total score | 17.47 (6.28) | 18.48 (6.14) | 19.69 (6.31)* | 8.41 | .015 |
| PISI factor 1 | 9.23 (4.15) | 9.79 (3.68) | 10.68 (3.56)* | 8.21 | .017 |
| PISI factor 2 | 7.32 (3.67) | 8.09 (3.69) | 8.85 (3.72) | 4.51 | .105 |
| PISI DS | 3.25 (1.61) | 3.43 (1.65) | 3.42 (1.57) | 1.40 | .498 |
*Mann-Whitney U comparisons showing significant differences (P < .01) between adolescents of healthy weight vs those with obesity. DS = daytime sleepiness, PISI = Pediatric Insomnia Severity Inventory.