Gestational age | 22, n=1 | 23, n=9 | 24, n=12 | 25, n=39 | 26, n=44 | 27, n=39 | Total preterm, n=144 | Term, n=173 |
---|---|---|---|---|---|---|---|---|
CP* (%) | 100 | 22.2 | 0.0 | 7.9 | 11.6 | 13.2 | 11.3† | 0† |
Blindness‡ (%) | 0.0 | 0.0 | 8.3 | 2.6 | 0.0 | 2.6 | 2.1 | 0 |
Hearing impairment§ (%) | 0.0 | 0.0 | 0.0 | 2.6 | 4.5 | 0.0 | 2.1 | 0 |
Intellectual impairment | ||||||||
Severe (%) | 100 | 22.2 | 0.0 | 7.7 | 6.8 | 0.0 | 6.3 | 0.6 |
Moderate (%) | 0 | 11.1 | 16.7 | 7.7 | 4.5 | 10.8 | 8.5 | 2.4 |
Mild (%) | 0 | 44.4 | 33.3 | 25.6 | 47.7 | 43.2 | 38.7 | 10.0 |
Zero (%) | 0 | 22.2 | 50.0 | 59.0 | 40.9 | 45.9 | 46.5 | 87.1 |
Mean (SD) FSIQ¶ | 47.0 | 79.1 (17.1) | 91.9 (13.2) | 94.3 (17.4) | 91.7 (16.9) | 95.9 (12.2) | 92.4 (16.4)** | 105.6 (12.4)** |
CP, cerebral palsy; FSIQ, full scale intelligence quotient.
↵* χ2 trend by gestational age in preterm cohort alone =0.15, p=0.70.
↵† Three 22–27 weeks and three term children did not have CP data available.
↵‡ χ2 trend by gestational age in preterm cohort alone =0.18, p=0.68.
↵§ χ2 trend by gestational age in preterm cohort alone =0.01, p=0.94.
↵¶ One-way analysis of variance (ANOVA) by gestational age in preterm cohort alone: Fdf5,136=3.48, p=0.005.
↵** Two 22–27 weeks and †three term children did not have sufficient data for IQ scores to be assigned.