Table 2 Mean Child Behavior Checklist scores of very preterm or very low birth weight children and children from the Dutch general population (aged 5 years).
| CBCL problems scale | VP/VLBW (n = 402)* | Population (n = 6007) | Difference (95% CI) | p Value† | ||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | |||
| Withdrawn | 2.00 | 2.13 | 1.42 | 1.71 | 0.57 (0.36 to 0.79) | <0.001 |
| Somatic complaints | 1.17 | 1.55 | 0.89 | 1.40 | 0.29 (0.13 to 0.45) | <0.001 |
| Anxious/depressed | 1.69 | 2.29 | 1.47 | 2.26 | 0.22 (0.01 to 0.45) | 0.062 |
| Social problems | 1.58 | 1.73 | 0.91 | 1.37 | 0.68 (0.50 to 0.85) | <0.001 |
| Thought problems | 0.65 | 1.16 | 0.33 | 0.83 | 0.32 (0.21 to 0.44) | <0.001 |
| Attention problems | 3.67 | 3.18 | 2.16 | 2.43 | 1.51 (1.19 to 1.83) | <0.001 |
| Delinquent behaviour | 1.03 | 1.56 | 0.82 | 1.31 | 0.21 (0.05 to 0.36) | <0.01 |
| Aggressive behaviour | 6.66 | 6.10 | 5.48 | 5.30 | 1.18 (0.57 to 1.80) | <0.001 |
| Sex problems | 0.24 | 0.66 | 0.18 | 0.59 | 0.05 (−0.01 to 0.12) | <0.111 |
| Total problems | 22.37 | 16.77 | 17.57 | 15.00 | 4.79 (3.10 to 6.48) | <0.001 |
| Internalising problems | 4.78 | 4.50 | 3.72 | 4.18 | 1.05 (0.60 to 1.51) | <0.001 |
| Externalising problems | 7.69 | 7.19 | 6.30 | 6.22 | 1.39 (0.67 to 2.11) | <0.001 |
CBCL, Child Behavior Checklist; VP/VLBW, very preterm or very low birth weight.
*Data on the CBCL were missing for five children.
†Based on t tests; non‐parametrical (Mann–Whitney U) tests yielded p<0.001 for all differences, except for sex problems (p = 0.063), delinquent behaviour (p = 0.003) and anxious/depressed (p = 0.063).