Table II.
Patient Characteristics for Mild, Moderate, and Severe Infections
| Total (N = 153) | Mild (N = 54) | Moderate (N = 60) | Severe (N = 39) | P‐value | |
|---|---|---|---|---|---|
| Age (days) | 206 ± 26 | 278 ± 52 | 206 ± 38 | 105 ± 36 | <0.01 |
| Male (%) | 95 (62%) | 32 (59%) | 36 (60%) | 27 (69%) | NS |
| Prematurity (%) | 21 (14%) | 5 (9%) | 6 (10%) | 10 (26%) | <0.05 |
| Family history of atopy (%) | 82 (57%) | 27 (52%) | 36 (62%) | 19 (55%) | NS |
| Symptomatic days before presentation | 5.5 ± 0.4 | 7.0 ± 1.1 | 4.8 ± 0.3 | 4.6 ± 0.4 | NS |
| RSV (%) | 109 (71%) | 35 (65%) | 45 (75%) | 29 (74%) | NS |
| Leukocytes counts | 8.7 ± 0.7 | 9.8 ± 1.1 | 8.6 ± 1.0 | 8.2 ± 1.4 | NS |
| Neutrophil counts | 3.5 ± 0.5 | 3.1 ± 0.7 | 2.9 ± 0.7 | 4.3 ± 1.1 | NS |
Data are presented as percentages or mean ± standard error (SE). Cell counts are given as *10E6 cells/ml ± SE. For variables that were not normally distributed, Kruskal–Wallis test was performed to compare continuous variables followed by Mann–Whitney U‐tests for individual comparisons. Chi‐squared tests were performed to compare categorical data. A two‐sided value of P < 0.05 was considered statistically significant. NS, not significant.