TABLE 3.
Risk Factors Associated with Late-onset Bloodstream Infection
| Adjusted HR (95% CI) | P | |
|---|---|---|
| Gestational age (weeks) | ||
| 37 | Reference | - |
| 38 | 1.25 (0.96, 1.62) | 0.10 |
| 39 | 1.10 (0.83, 1.46) | 0.50 |
| 40 | 1.18 (0.88, 1.57) | 0.27 |
| 41 | 0.60 (0.36, 1.02) | 0.06 |
| ≥42 | 0.59 (0.22, 1.62) | 0.31 |
|
| ||
| Male | 1.02 (0.85, 1.23) | 0.82 |
|
| ||
| Race/ethnicity | ||
| White | Reference | - |
| Black | 1.40 (1.07, 1.83) | 0.01 |
| Hispanic | 1.15 (0.93, 1.42) | 0.19 |
| Other | 0.95 (0.62, 1.46) | 0.82 |
|
| ||
| Small for gestational age | 0.66 (0.50, 0.86) | 0.002 |
|
| ||
| Apgar score at 5 minutes | ||
| 7–10 | Reference | - |
| 4–6 | 0.86 (0.61, 1.21) | 0.39 |
| 1–3 | 0.72 (0.46, 1.14) | 0.17 |
|
| ||
| Cesarean delivery | 0.77 (0.64, 0.93) | 0.007 |
|
| ||
| Antenatal antibiotics | 0.71 (0.55, 0.92) | 0.009 |
|
| ||
| Early-onset BSI | 0.64 (0.36, 1.14) | 0.13 |
|
| ||
| Discharge year | 0.96 (0.93, 0.98) | <0.001 |
HR indicates hazard ratio; CI, confidence interval; BSI, bloodstream infection.