Table 4.
Description of the study population (n = 821)
| N | n (%) | |
|---|---|---|
| First wheezing episode |
801 |
492 (59.9) |
| Sex (male/female) |
821 |
476/345 |
| Age under 3 months |
821 |
170 (20.7) |
| Prematurity <37 weeks |
780 |
108 (13.1) |
| Respiratory symptom length (j) – mean (SD) |
806 |
4.1 (5.3) |
| Feeding difficulties |
799 |
309 (37.6) |
| Temperature |
738 |
|
| < 38°C |
|
373 (45.4) |
| [38-39°C] |
|
211 (25.7) |
| ≥ 39°C |
|
154 (18.8) |
| Previous antibiotherapy |
816 |
124 (15.1) |
| Age-related respiratory rate [6] |
747 |
|
| 1 point |
|
427 (52.0) |
| 2 points |
|
101 (12.3) |
| 3 points |
|
219 (26.7) |
| Global score for retraction signs |
798 |
|
| 0 point |
|
233 (29.2) |
| 1 point |
|
454 (56.9) |
| 2 points |
|
83 (10.4) |
| 3 points |
|
28 (3.5) |
| Oxygen saturation |
747 |
|
| ≥95% |
|
642 (85.9) |
| <95% |
|
105 (14.1) |
| Crackles |
814 |
81 (9.9) |
| Bronchitis rales |
814 |
272 (33.1) |
| Otitis |
789 |
104 (12.7) |
| Conjunctivitis |
802 |
27 (3.3) |
| Toxic appearing |
817 |
35 (4.3) |
| Chest radiography |
821 |
427 (52.0) |
| Hospitalisation | 821 | 350 (42.6) |