Table 3. Hierarchical logistic regression of factors associated with infant mortality, Teresina, Piauí, Brazil.
| Variables | Live Births | Deaths | ORadj (CI95%) | p* |
|---|---|---|---|---|
| Mother Race | ||||
| White | 2,054 | 41 | 1 | 0.139 |
| Non-white | 9,418 | 161 | 1.20 (0.89 - 1.51) | |
| Mother Marital Status | ||||
| With Partner | 10,122 | 146 | 1 | 0.266 |
| No Partner | 3,480 | 61 | 1.97 (0.86 - 3.17) | |
| Mother Age | ||||
| 10–19 Years | 2,210 | 49 | 2.82 (1.69 - 3.20) | < 0.001 |
| 20–34 Years | 10,293 | 144 | 5.11 (3.80 - 6.46) | |
| ≥ 35 Years | 1,379 | 14 | 1 | |
| Mother Education | ||||
| Low | 2,618 | 48 | 1.85 (1.43 - 2.32) | < 0.001 |
| Intermediate | 6,566 | 91 | 1 | |
| High | 4,344 | 65 | 1.28 (1.10 - 1.47) | |
| Mother Occupation | ||||
| With Remuneration | 4,451 | 64 | 2.03 (1.48 - 2.44) | < 0.001 |
| No Remuneration | 9,125 | 143 | 1 | |
| Hospital Type | ||||
| SUS | 10,499 | 188 | 1 | 0.512 |
| Non-SUS | 3,368 | 19 | 1.87 (0.72 - 3.43) | |
| Parity | ||||
| First-time | 4,750 | 98 | 1.43 (1.14 - 1.70) | 0.009 |
| Multiparous | 6,082 | 109 | 1 | |
| Pregnancy Type | ||||
| Single | 13,437 | 192 | 1 | < 0.001 |
| Multiple | 324 | 15 | 2.87 (2.00 - 3.78) | |
| Delivery Type | ||||
| Vaginal | 5,782 | 118 | 1.84 (1.26 - 2.45) | < 0.001 |
| Cesarean | 8,058 | 89 | 1 | |
| Prenatal | ||||
| Did not perform | 669 | 9 | 1.28 (1.11 - 1.51) | 0.038 |
| Inappropriate | 4,797 | 66 | 1.12 (1.02 - 1.24) | |
| Appropriate | 7,024 | 99 | 1 | |
| Gender | ||||
| Female | 6,742 | 92 | 1 | 0.322 |
| Male | 7,135 | 114 | 1.15 (0.78 - 1.46) | |
| Gestational Age | ||||
| Preterm | 1,462 | 133 | 13.88 (7.95 - 20.08) | < 0.001 |
| Term | 10,493 | 64 | 1 | |
| Post-term | 767 | 5 | 1.08 (1.01 -1.16) | |
| Weight | ||||
| Low Weight | 1,298 | 141 | 12.3 (8.76 - 16.14) | < 0.001 |
| Normal | 12,584 | 66 | 1 | |
| Apgar 1st Minute | ||||
| 0–3 | 180 | 56 | 23.12 (17.90 - 28.41) | < 0.001 |
| 4–6 | 671 | 50 | 11.36 (7.15 - 14.97) | |
| 7–10 | 12,743 | 82 | 1 | |
| Apgar 5th Minute | ||||
| 0–3 | 58 | 19 | 21.80 (16.47 - 27.31) | < 0.001 |
| 4–6 | 71 | 26 | 23.65 (17.89 - 30.59) | |
| 7–10 | 13,468 | 143 | 1 | |
| Congenital Malformation | ||||
| Yes | 98 | 58 | 42.33 (30.11 - 54.48) | < 0.001 |
| No | 12,498 | 112 | 1 | |
Abbreviations: CI95%, 95% confidence interval; ORadj, Odds Ratio adjusted; SUS, Brazilian Unified Health Care System.
Source: Santos et al. (2014).11
Note: *p = Wald test; Hosmer and Lemeshow test (p = 0.896); Live Birth (N = 13882); Deaths (n = 207).