Table 1.
POPS-35 participants versus non-participants
| POPS-35 participants N = 370 | Non-participants N = 585 | p value | |
|---|---|---|---|
| Gestational age, m (sd) | 31.05 (2.4) | 31.04 (2.6) | 0.95 |
| Birth weight, grams, m (sd) | 1325 (297) | 1306 (274) | 0.32 |
| Sex, n (%) | < 0.001 | ||
| Female | 209 (56%) | 251 (43%) | |
| Male | 161 (44%) | 334 (57%) | |
| Disability at 14 yrs, n (%)^ | 0.003* | ||
| None | 129 (37%) | 161 (33%) | |
| 1–2 small disabilities | 135 (38%) | 165 (33%) | |
| > 2 small or 1 severe | 68 (19%) | 108 (22%) | |
| > 1 severe disability | 19 (5%) | 59 (12%) | |
| Parent educational level 14 years, n (%)† | < 0.001* | ||
| Low | 89 (25%) | 251 (49%) | |
| Middle | 148 (41%) | 169 (33%) | |
| High | 125 (35%) | 90 (18%) |
^Disabilities on 8 HUI attributes at 14 years; no participation at 14 years: participants n = 19, non-participants n = 92
†Low: primary education, technical and vocational training, lower and middle general secondary education; Middle: middle vocational education, higher general secondary education, pre-university education; High: higher vocational education, university; Unknown: participants n = 8, non-participants n = 75
*Chi-square linear-by-linear association