Table 3.
Trends in infant mortality (95% confidence interval) for sole and couple registrations, England and Wales, 1975 to 1996
| Year | Sole registrations | Couple registrations | Excess mortality sole/couple (%) |
|---|---|---|---|
| Perinatal mortality/1000 total births | |||
| 1975-7 | 34.2 (33.0 to 35.5) | 17.2 (17.0 to 17.3) | 100 |
| 1982-4 | 17.8 (17.1 to 18.6) | 10.1 (9.9 to 10.2) | 77 |
| 1989-91 | 11.5 (11.0 to 12.0) | 7.8 (7.7 to 7.9) | 47 |
| 1994-6 | 10.6 (10.1 to 11.1) | 8.6 (8.4 to 8.7) | 24 |
| Neonatal mortality/1000 live births | |||
| 1975-7 | 17.1 (16.2 to 18.0) | 9.5 (9.3 to 9.6) | 81 |
| 1982-4 | 8.2 (7.6 to 8.7) | 5.7 (5.6 to 5.8) | 43 |
| 1989-91 | 5.3 (4.9 to 5.6) | 4.4 (4.3 to 4.5) | 19 |
| 1994-6 | 4.2 (3.8 to 4.5) | 4.1 (4.0 to 4.1) | 2 |
| Postneonatal mortality/1000 live births | |||
| 1975-7 | 7.6 (7.1 to 8.3) | 4.4 (4.3 to 4.5) | 74 |
| 1982-4 | 7.5 (7.0 to 8.0) | 3.9 (3.8 to 4.0) | 91 |
| 1989-91 | 6.6 (6.2 to 7.0) | 3.0 (2.9 to 3.0) | 123 |
| 1994-6 | 3.7 (3.4 to 4.0) | 1.8 (1.7 to 1.9) | 103 |
| Overall infant mortality/1000 live births | |||
| 1975-7 | 24.7 (23.7 to 25.9) | 13.9 (13.7 to 14.0) | 79 |
| 1982-4 | 15.7 (14.9 to 16.4) | 9.6 (9.5 to 9.7) | 63 |
| 1989-91 | 11.9 (11.3 to 12.4) | 7.4 (7.3 to 7.5) | 61 |
| 1994-6 | 7.8 (7.4 to 8.3) | 5.9 (5.8 to 6.0) | 33 |