Bivariate analysis of sociodemographic variables on longstanding health problems at 8 months, 18 months, and 3 years
| Sociodemographic variables | 8 months (n=1752) | 18 months (n=1521) | 3 years (n=1182) |
|---|---|---|---|
| Biosocial | |||
| Low birth weight (<2.5 kg) | 1.92 (0.96 to 3.83) | 1.98 (1.09 to 3.61) | 1.06 (0.54 to 2.11) |
| Gestational age (<37 weeks) | 1.62 (0.79 to 3.32) | 1.69 (0.92 to 3.13) | 1.39 (0.73 to 2.64) |
| Parity (primipara) | 1.18 (0.74 to 1.87) | 0.98 (0.66 to 1.47) | 0.74 (0.50 to 1.11) |
| Maternal age (<20) | 1.41 (0.56 to 3.60) | 1.88 (0.91 to 3.89) | 1.16 (0.48 to 2.77) |
| Ethnicity (ISC origin) | 0.44 (0.14 to 1.42) | 1.04 (0.51 to 2.11) | 1.01 (0.51 to 1.20) |
| Health related behaviour | |||
| Smoking household | 1.10 (0.69 to 1.77) | 1.60 (1.08 to 2.39) | 1.90 (1.29 to 2.80) |
| Socioeconomic status | |||
| Housing tenure (rented) | 1.29 (0.79 to 2.11) | 1.85 (1.24 to 2.78) | 2.14 (1.44 to 3.20) |
| Maternal education (no qualifications) | 1.07 (0.50 to 2.27) | 1.33 (0.74 to 2.41) | 1.59 (0.89 to 2.86) |
| Marital status (single) | 1.51 (0.76 to 3.00) | 1.51 (0.83 to 2.72) | 1.95 (1.11 to 3.41) |