Table 1.
Variables included in the four model specifications of the child-health production function.
| Model specifications | Variables |
|---|---|
| Model specification 1 | Raw model of family income and child behavioural outcome |
| Model specification 2 | Models included family income, standard sociodemographic controls (current age, sex, ethnicity, number of siblings, maternal education, maternal age at child birth, housing tenure) and ‘child’s health endowment’ (birth weight, gestational age, breastfeeding, mother’s smoking and alcohol during pregnancy, child’s longstanding illness) |
| Model specification 3 | Models included the same variables as in model specification 2 with the addition of ‘maternal s psychological distress pattern’ |
| Model specification 4 | Models included the same variables as in model specification 3 with the addition of ‘family and external factors’:
|