Table 2.
Clinical characteristics associated with infections in preterm and term infants.
| Clinical feature | Moderate preterm (n = 10) | Late preterm (n = 20) | Term (n = 129) | p |
|---|---|---|---|---|
| Hospitalisation rate | 10/30 (33%) | 20/113 (17.6%) | 129/1858 (6.9%) | <0.0001 |
| Temperature > 37.9 °C | 4 (40%) | 8 (40%) | 51 (39%) | NS |
| Hypoxia (SatO2<95%) | 8 (80%) | 18 (72%) | 89 (71%) | NS |
| Abnormal chest radiograph | 4 (40%) | 6 (35%) | 21 (36%) | NS |
| Antibiotic treatment | 1 (10%) | 1 (5%) | 18 (13%) | NS |
| High flow oxygenotherapy | 1 (10%) | 5 (25%) | 22 (17%) | NS |
| Diagnosis | ||||
| Recurrent wheezing | 2 (20%) | 2 (10%) | 15 (11.6%) | NS |
| Bronchiolitis | 6 (60%) | 17 (85%) | 95 (73%) | NS |
| URTI | 2 (20%) | 1 (5%) | 7 (5.4%) | NS |
| Age (months) | 3.9 ± 3.3 | 3.6 ± 3.5 | 2.8 ± 2.7 | NS |
| Hospital stay (days) | 5.1 ± 2.5 | 4.1 ± 2.3 | 4.8 ± 2.2 | NS |
| Fever duration (days) | 1.2 ± 0.8 | 1 ± 1.8 | 1 ± 1.4 | NS |
| Hypoxia duration (days) | 2.6 ± 2.9 | 2.4 ± 2.6 | 2.8 ± 2.7 | NS |
| Admission to PICU | 1 (10%) | 5 (25%) | 18 (13.9%) | NS |
PICU: paediatric intensive care unit, URTI: upper respiratory tract infections.