Table 3. HRs for 1-year infant mortality by socioeconomic status and residence zone in Colombia, 2011–2020.
| Unadjusted HR | 95% CI | P value | Adjusted HR | 95% CI | P value | |
|---|---|---|---|---|---|---|
| Educational level | ||||||
| University | Reference | Reference | ||||
| Technical | 1.13 | 1.09 to 1.18 | 0.00 | 1.12 | 1.07 to 1.16 | 0.00 |
| Secondary | 1.39 | 1.35 to 1.43 | 0.00 | 1.34 | 1.30 to 1.39 | 0.00 |
| Primary or less | 1.65 | 1.60 to 1.71 | 0.00 | 1.50 | 1.44 to 1.56 | 0.00 |
| Health insurance enrolment scheme | ||||||
| Contributory/except/special | Reference | Reference | ||||
| Subsidised | 1.33 | 1.31 to 1.35 | 0.00 | 1.26 | 1.23 to 1.28 | 0.00 |
| Uninsured | 1.69 | 1.62 to 1.77 | 0.00 | 1.61 | 1.54 to 1.68 | 0.00 |
| Residence zone | ||||||
| Urban municipal centre | Reference | Reference | ||||
| Small populated centre | 1.09 | 1.06 to 1.13 | 0.00 | 1.00 | 0.97 to 1.04 | 0.84 |
| Dispersed rural area | 1.10 | 1.07 to 1.12 | 0.00 | 1.08 | 1.05 to 1.11 | 0.00 |
| Observations | 5 605 111 | 5 605 111 |
Adjusted HR using a Cox regression model controlling for mother’s age, baby’s sex, number of pregnancies, mother’s marital status, cohort year and geographical region of birth.
CI, Confidence Interval; HR, Hazard Ratio.