Behavioural outcomes of the children
| T score Mean (SD) | % (sub)clinical | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| FT N=94 | MPT N=111 | p Value | Effect size* | FT (%) | MPT(%) | OR | (95% CI) | p Value | |
| Total problems | 43.34 (8.56) | 46.06 (7.87) | 0.08 | 0.02 | 3.2 | 5.4 | 1.37 | (0.31 to 6.02) | 0.68 |
| Internalising problems | 41.54 (8.56) | 44.76 (8.94) | 0.03 | 0.03 | 1.1 | 5.4 | 3.70 | (0.41 to 33.09) | 0.24 |
| Externalising problems | 46.80 (8.68) | 48.80 (8.11) | 0.24 | 0.01 | 4.3 | 9.0 | 1.88 | (0.54 to 6.54) | 0.32 |
| Subscales | |||||||||
| Emotionally reactive | 51.43 (2.98) | 52.60 (4.59) | 0.12 | 0.01 | 1.1 | 4.5 | 3.70 | (0.40 to 34.22) | 0.25 |
| Anxious/ depressed | 50.46 (1.55) | 50.74 (1.88) | 0.53 | 0.002 | 0 | 0 | – | – | – |
| Somatic complaints | 52.15 (4.23) | 53.68 (5.49) | 0.18 | 0.01 | 3.2 | 10.8 | 2.26 | (0.58 to 8.83) | 0.24 |
| Withdrawn | 51.87 (3.34) | 52.23 (3.51) | 0.70 | 0.001 | 1.1 | 0.9 | 0.76 | (0.04 to 15.14) | 0.86 |
| Sleep problems | 51.99 (4.09) | 52.13 (3.89) | 0.89 | 0.00 | 2.1 | 1.8 | 0.53 | (0.06 to 4.43) | 0.55 |
| Attention problems | 52.68 (4.58) | 53.46 (5.26) | 0.88 | 0.00 | 4.3 | 6.3 | 1.06 | (0.28 to 4.04) | 0.93 |
| Aggressive behaviour | 52.28 (3.58) | 52.86 (4.60) | 0.35 | 0.004 | 0 | 3.6 | – | – | – |
*Partial η2; analyses are adjusted for maternal education level and maternal age at birth; ANCOVA results of the total problems score: F1,201=3.15, p=0.08, partial η2=0.02; MANCOVA results of the internalising and externalising scale: Wilks’ Λ=0.98, F2,200=2.54, p=0.08, partial η2=0.03; MANOVA results of the subscales: Wilks’ Λ=0.98, F7,195=0.59, p=0.76, partial η2=0.02.
ANCOVA, analysis of covariance; FT, full term, GA 37–41 weeks; GA, gestational age; MANOVA, multivariate analysis of variance; MANCOVA, multivariate analysis of covariance; MPT, moderately preterm, GA 32–36 weeks.