Table 1:
Perinatal and postneonatal mortality* by birthweight for gestational age among births in Quebec to First Nations women and women whose mother tongue is French, 1991–2000
| Birthweight for gestational age, percentile | First Nations* per 1000 (n/total) | French mother tongue* per 1000 (n/total) | First Nations v. French mother tongue RR (95% CI) |
|---|---|---|---|
| Perinatal death | |||
| < 10th | 69.5 (13/187) | 16.9 (1193/70 736) | 4.12 (2.43–6.98) |
| 10th–90th | 9.2 (33/3575) | 5.2 (2759/528 517) | 1.77 (1.26–2.49) |
| > 90th | 4.9 (7/1431) | 8.0 (435/54 179) | 0.61 (0.29–1.28) |
| Postneonatal death | |||
| 10th–90th | 5.4 (19/3542) | 1.3 (659/525 758) | 4.28 (2.72–6.74) |
| > 90th | 6.3 (9/1424) | 0.8 (41/53 744) | 8.28 (4.03–17.01) |
| Postneonatal SIDS | |||
| 10th–90th | 1.7 (6/3542) | 0.4 (198/525 758) | 4.50 (2.00–10.13) |
| > 90th | 2.1 (3/1424) | 0.2 (9/53 744) | 12.58 (3.41–46.42) |
Note: CI = confidence interval, RR = risk ratio, SIDS = sudden infant death syndrome.
*
Data for outcome rates are per 1000 total births for perinatal death and per 1000 postneonatal survivors for postneonatal death. Results in the category of birthweight for gestational age < 10th percentile were not presented for postneonatal death because values for the First Nations group were too small (one death) for meaningful comparisons.