Percentage low birthweight births (95% CI) by registration type and fathers social class: 2000*
| (A) All births | (B) Singleton births | |||||
|---|---|---|---|---|---|---|
| Number | Number | |||||
| *All births with stated birth weight only. | ||||||
| †Based on a 10% sample of births. | ||||||
| Couple registration births | 7.4 | (7.3, 7.4) | 557783 | 5.9 | (5.8, 6.0) | 541252 |
| SCI† | 6.1 | (5.4, 6.8) | 4598 | 4.4 | (3.8, 5.0) | 4446 |
| SCII† | 6.2 | (5.8, 6.5) | 15945 | 4.6 | (4.3, 4.9) | 15441 |
| SCIIIN† | 7.3 | (6.6, 8.0) | 5269 | 5.7 | (5.1, 6.4) | 5109 |
| Non-manual† | 6.4 | (6.1, 6.7) | 25812 | 4.8 | (4.5, 5.1) | 24996 |
| SCIIIM† | 7.8 | (7.4, 8.2) | 15990 | 6.3 | (5.9, 6.7) | 15523 |
| SCIV† | 9.0 | (8.4, 9.6) | 8367 | 7.7 | (7.1, 8.2) | 8166 |
| SCV† | 8.1 | (7.1, 9.1) | 2690 | 6.6 | (5.6, 7.6) | 2607 |
| Manual† | 8.2 | (7.9, 8.5) | 27047 | 6.8 | (6.5, 7.1) | 26296 |
| Other† | 8.9 | (7.8, 9.9) | 2960 | 8.0 | (7.0, 9.0) | 2901 |
| Sole registration births | 10.2 | (9.9, 10.4) | 45684 | 9.0 | (8.7, 9.2) | 44676 |
| All live births | 7.6 | (7.5, 7.6) | 603467 | 6.1 | (6.1, 6.2) | 585928 |