Table 3 Change in birthweight adjusted for gestational age by decade and by area deprivation group (Townsend deprivation score, TDS, quartile) with corresponding 95% confidence intervals (95% CI)
| Â | TDS quartile 1 (least deprived) | TDS quartile 2 | TDS quartile 3 | TDS quartile 4 (most deprived) |
|---|---|---|---|---|
Change in birthweight (g) (95% CI) a | ||||
1961–1970 | Ref | Ref | Ref | Ref |
1971–1980 | 37.9 (22.4, 53.4) | 43.4 (27.1, 59.6) | 33.3 (16.5, 50.2) | 32.3 (15.0, 49.5) |
1981–1990 | 83.2 (67.8, 98.6) | 105.7 (89.6, 121.8) | 99.2 (82.6, 115.8) | 107.3 (90.2, 124.3) |
1991–2000 | 102.4 (86.7, 118.1) | 107.4 (91.1, 123.7) | 95.1 (78.6, 111.6) | 124.9 (108.0, 141.9) |