Differences in mean Child Behavior Checklist (CBCL) scores between moderately preterm and term-born children
| Preterm (n=916) | Term (n=543) | |||||
|---|---|---|---|---|---|---|
| CBCL problems scale | Mean | SD | Mean | SD | Difference (95% CI) | p Value* |
| Total problems | 30.40 | 19.41 | 26.36 | 17.80 | 4.04 (2.08 to 6.00) | <0.001 |
| Externalising problems | 12.44 | 8.12 | 11.03 | 7.50 | 1.41 (0.59 to 2.23) | <0.01 |
| Internalising problems | 7.93 | 6.71 | 6.60 | 5.85 | 1.33 (0.67 to 1.98) | <0.001 |
| Emotionally reactive | 2.75 | 2.67 | 2.34 | 2.31 | 0.41 (0.15 to 0.67) | <0.01 |
| Anxious/depressed | 1.78 | 2.06 | 1.43 | 1.74 | 0.35 (0.15 to 0.55) | <0.01 |
| Somatic complaints | 2.05 | 2.22 | 1.77 | 1.96 | 0.28 (0.06 to 0.50) | <0.01 |
| Withdrawn | 1.35 | 1.52 | 1.07 | 1.38 | 0.29 (0.13 to 0.44) | <0.001 |
| Sleep problems | 2.03 | 2.34 | 1.62 | 2.11 | 0.41 (0.18 to 0.65) | <0.01 |
| Attention problems | 2.40 | 2.02 | 1.81 | 1.84 | 0.59 (0.39 to 0.79) | <0.001 |
| Aggressive behaviour | 10.04 | 6.75 | 9.22 | 6.17 | 0.82 (0.14 to 1.50) | <0.05 |
↵* p Values calculated by t tests; non-parametric testing provided p values of the same significance for all differences, except for somatic complaints (p=0.051) and aggressive behaviour (p=0.054).