Table 1.

Adjusted population attributable fractions for low birthweight and unplanned admission for injury and mortality within the 12 months from postnatal discharge, according to psychosocial risk factors

	Low birthweight (<2500 g)	One or more unplanned admissions for injury	Post-discharge mortality (deaths per 10 000 infants)
Teenage motherhood	0·9% (0·8–1·1)	3·4% (3·2–3·7)	5·3% (3·9–6·6)
Previous teenage motherhood	2·1% (1·8–2·3)	2·9% (2·6–3·2)	3·7% (1·7–5·7)
History of adversity	1·1% (0·9–1·3)	0·9% (0·7–1·1)	1·4% (0·2–2·7)
History of mental health or behavioural conditions	1·7% (1·5–1·8)	1·0% (0·8–1·1)	1·9% (0·7–3·2)
Most deprivation*	8·2% (7·3–9·1)	5·0% (3·1–6·9)	13·5% (9·4–17·5)

Data are population attributable fraction (95% CI). Population attributable fractions were adjusted for all psychosocial risk factors, maternal age, ethnic group, and parity. Psychosocial risk factors were identified in the 2 years before 20 weeks of pregnancy.

^*Most deprived quintile of the Index of Multiple Deprivation.