Perinatal factors, social variables, and disability
| Variables | Intervention | Control preterm n=99 | |||
|---|---|---|---|---|---|
| Portage (n=111) | Parent adviser (n=99) | ||||
| Perinatal factors: | |||||
| Gestational age (weeks) | 31 (29–32) | 30 (29–31) | 31 (28–32) | ||
| Birthweight (g) | 1560 (1280–1735) | 1331 (1078–1700) | 1420 (1095–1700) | ||
| Males | 68 (62%) | 50 (50%) | 59 (59%) | ||
| Twin pregnancies1-150 | 24 children | 20 children | 14 children | ||
| (22% group) | (20% group) | (14% group) | |||
| 14 families | 11 families | 7 families | |||
| Number ventilated | 73 (67%) | 72 (72%) | 68 (68%) | ||
| Duration of ventilation (d) | 4 (2–6) | 5 (2–11) | 5 (2–9) | ||
| Oxygen therapy at 36 weeks of gestation | 14 (13%) | 10 (10%) | 14 (14%) | ||
| Abnormal cerebral ultrasound | 17 | 19 | 17 | ||
| Haemorrhagic lesions | 10 | 5 | 11 | ||
| Periventricular leucomalacia | 9 | 6 | 8 | ||
| Days of hospital stay | 40 (28–61) | 51 (33–65) | 48 (30–73) | ||
| Social factors:† | |||||
| Education beyond 16 years | 45 (50%) | 47 (53.4%) | 55 (66.3%) | ||
| Non-manual SES | 31 (34.1%) | 27 (30.3%) | 40 (48.8%) | ||
| Lives with both parents | 84 (91.3%) | 72 (81.8%) | 72 (88.9%) | ||
| Single child | 34 (37%) | 45 (51.1%) | 44 (53%) | ||
| Use of car by mother | 49 (56.3%) | 49 (56.3%) | 55 (72.4%) | ||
| Disability at 2 years: | |||||
| No disability | 94 | 89 | 82 | ||
| Impaired/no disability | 4 | 3 | 4 | ||
| Disability not severe | 2 | 2 | 5 | ||
| Severe disability | 11 | 5 | 8 | ||
| Cerebral palsy (No with severe disability) | 12 (9) | 7 (6) | 11 (10) | ||
| Mean (SEM) 2-year Griffiths | 70.4 (7.9) | 59.5 (9.2) | 68.5 (9.1) | ||
| Quotient for disabled children | n=10 | n=6 | n=10 | ||
Data expressed as median (interquartile range) or number (%) as appropriate; †group totals vary slightly as not all parents answered all questions
↵1-150 No higher order multiples in this population