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. 2021 Jan 28;6(2):e97–e105. doi: 10.1016/S2468-2667(20)30210-3

Table 2.

Crude (unadjusted) birth outcomes and infant outcomes within 12 months of postnatal discharge according to psychosocial risk factors

Birth outcomes
Infant outcomes within 12 months of postnatal discharge
All birth outcomes Mean birthweight (g) Low birthweight (<2500 g) Preterm birth (<37 weeks) Small for gestation* Large for gestation* All infant outcomes within 12 months of postnatal discharge One or more unplanned admissions for injury Post-discharge mortality (deaths per 10 000 infants)
Total 2 137 103 (100·0%) 3374 (3373–3375) 5·6% (5·5–5·6%) 6·4% (6·4–6·4%) 7·1% (7·1–7·2%) 10·5% (10·5–10·6%) 2 129 227 (99·6%) 3·6% (3·6–3·7%) 8·4 (8·1–8·8)
Teenage motherhood 93 279 (4·4%) 3272 (3269–3276) 7·2% (7·0–7·4%) 7·4% (7·2–7·6%) 10·1% (9·9–10·3%) 6·6% (6·4–6·8%) 92 474 (4·3%) 6·6% (6·5–6·8%) 18·1 (15·4–21·0)
Previous teenage motherhood 168 186 (7·9%) 3338 (3335–3340) 6·5% (6·3–6·6%) 7·5% (7·5–7·7%) 7·1% (7·0–7·3%) 10·2% (10·1–10·4%) 166 724 (7·8%) 5·4% (5·3–5·6%) 14·8 (13·0–16·8)
History of adversity 58 107 (2·7%) 3274 (3269–3279) 9·0% (8·7–9·2%) 9·5% (9·2–9·7%) 9·1% (8·9–9·3%) 10·1% (9·9–10·4%) 56 944 (2·7%) 5·9% (5·7–6·1%) 17·2 (14·0–21·0)
History of mental health or behavioural conditions 51 312 (2·4%) 3237 (3231–3242) 10·0% (9·7–10·2%) 10·9% (10·6–11·2%) 9·2% (8·9–9·4%) 10·2% (9·9–10·4%) 50 166 (2·4%) 6·0% (5·8–6·2%) 18·7 (15·1–22·9)
Most deprivation 580 631 (27·2%) 3304 (3302–3305) 9·6% (9·3–9·9%) 7·2% (7·1–7·2%) 9·1% (9·1–9·2%) 9·2% (9·1–9·3%) 577 357 (27·1%) 4·2% (4·2–4·3%) 12·4 (11·5–13·3)
No risk factors 1 377 706 (64·5%) 3408 (3406–3409) 4·8% (4·7–4·8%) 5·9% (5·9–5·9%) 6·3% (6·3–6·4%) 11·1% (11·1–11·2%) 1 374 650 (64·6%) 3·2% (3·1–3·2%) 6·2 (5·8–6·7)

Data are n (%), mean (95% CI), % (95% CI), or n per 100 000 infants (95% CI). Psychosocial risk factors were identified in the 2 years before 20 weeks of pregnancy.

*

Small (<10th percentile of birthweight for gestation) or large (>90th percentile of birthweight for gestation) for gestation, derived from national birthweight percentiles.

Most deprived quintile of the Index of Multiple Deprivation.