Table 1. Study population characteristics in 34 low- and middle-income African countries during 1992–2019 by baseline characteristics (total N = 850,924).
| Missing (%) |
Infant mortality (N [%]) |
Infant mortality rate (per 1,000 live births) |
|||
|---|---|---|---|---|---|
| Case | Non-case | Unweighted | Weighted | ||
| Total | 50,377 | 800,547 | 59.2 | 59.2 | |
| Child’s sex | 0 | ||||
| Male | 27,802 (55.2) | 403,017 (50.3) | 64.5 | 64.7 | |
| Female | 22,575 (44.8) | 397,530 (49.7) | 53.7 | 53.7 | |
| Mother’s education | 0 | ||||
| No education | 25,973 (51.6) | 370,310 (46.3) | 65.5 | 65.2 | |
| Primary | 16,422 (32.6) | 266,580 (33.3) | 58.0 | 58.3 | |
| Secondary | 7,310 (14.5) | 145,469 (18.2) | 47.8 | 47.7 | |
| Higher | 671 (1.3) | 18,133 (2.3) | 35.7 | 41.0 | |
| Residence | 0 | ||||
| Urban | 11,563 (23.0) | 216,519 (27.0) | 50.7 | 48.4 | |
| Rural | 38,814 (77.0) | 584,028 (73.0) | 62.3 | 63.2 | |
| Wealth quintile | 11.1 | ||||
| Lowest | 11,093 (25.3) | 153,525 (21.5) | 67.4 | 67.3 | |
| Second | 9,529 (21.8) | 135,105 (19.0) | 65.9 | 66.7 | |
| Middle | 8,534 (19.5) | 140,712 (19.7) | 57.2 | 57.2 | |
| Fourth | 8,287 (18.9) | 143,021 (20.1) | 54.8 | 52.9 | |
| Highest | 6,368 (14.5) | 140,505 (19.7) | 43.4 | 44.5 | |
| Year of birth | 0 | ||||
| 1992–2005 | 20,615 (40.9) | 253,104 (31.6) | 75.3 | 76.6 | |
| 2006–2019 | 29,762 (59.1) | 547,443 (68.4) | 51.6 | 51.0 | |
| Climate zone | 0 | ||||
| Tropical | 30,515 (60.6) | 472,541 (59.0) | 60.7 | 58.7 | |
| Temperate | 7,633 (15.2) | 130,152 (16.3) | 55.4 | 65.2 | |
| Dry | 12,229 (24.3) | 197,854 (24.7) | 58.2 | 56.5 | |