Table 1.
Demographic Features, Clinical Characteristics, and Risk Factors of Patients: Comparison Between Colonized (n = 66) and Infected Subjects (n = 26)
| Variable | Descriptive statistic | Colonized (n = 66) | Infected (n = 26) | OR | 95% CI | p-Value (univariate) |
|---|---|---|---|---|---|---|
| Gender (male) | Number (%) | 28 (41.8) | 12 (46.2) | 1.16 | 0.47–2.9 | 0.745 |
| Birth weight (g) | Median (IQR) | 1830 (1272–2182) | 1495 (1185–2091) | 0.98a | 0.92–1.04 | 0.465 |
| Gestional age (week) | Median (IQR) | 33.1 (30.7–35) | 32 (29–37.1) | 1.00 | 0.90–1.12 | 0.962 |
| APGAR score (1 min) | Median (IQR) | 8 (6–9) | 6.5 (4–8) | 0.79 | 0.64–0.97 | 0.024 |
| APGAR score (10 min) | Median (IQR) | 9 (8–10) | 8.5 (7–9) | 0.74 | 0.55–0.98 | 0.037 |
| Severe prematurity (gestional age <30 weeks)b | Number (%) | 13 (20) | 11 (42.3) | 2.90 | 1.09–7.87 | 0.033 |
| Caesarean section (yes)c | Number (%) | 45 (69.2) | 20 (80) | 1.78 | 0.58–5.41 | 0.311 |
| Twin birth (yes)b | Number (%) | 18 (27.7) | 7 (26.9) | 0.96 | 0.34–2.67 | 0.941 |
| Surgery (yes) | Number (%) | 8 (12.1) | 6 (23.1) | 2.17 | 0.67–7.03 | 0.195 |
| Central vasculat catheter (yes) | Number (%) | 45 (68.2) | 20 (76.9) | 1.56 | 0.55–4.44 | 0.409 |
| Endotracheal tube (yes) | Number (%) | 18 (27.7) | 12 (46.2) | 2.29 | 0.89–5.87 | 0.086 |
| Nasogastric tube (yes)b | Number (%) | 41 (63.1) | 20 (76.9) | 1.95 | 0.69–5.53 | 0.209 |
| Parenteral nutrition (yes) | Number (%) | 50 (79.9) | 23 (88.5) | 2.30 | 0.61–8.73 | 0.221 |
| Maternal milk (yes)c | Number (%) | 35 (54.7) | 11 (42.3) | 0.61 | 0.24–1.53 | 0.289 |
| Lenght of stay (days) | Median (IQR) | 24 (12–45) | 44 (21–81) | 1.02 | 1.0–1.03 | 0.018 |
a
per 100 g.
b
One missing data.
c
Two missing data.
OR, odds ratio; CI, confidence interval; IQR, interquartile range.