Table 3.
Characteristics of study population*
| Mean or % (n = 383) | SD or 95% CI | |
|---|---|---|
| Age (months) | 34 | (19.7) |
| Male gender | 62% | (57–67) |
| In the year prior to inclusion | ||
| Number of AOM episodes/year | 5.0 | (2.7) |
| 2–3 | 37% | (32–42) |
| 4–5 | 31% | (26–36) |
| 6 or more | 32% | (27–37) |
| Impaired hearing** | 35% | (30–40) |
| Language or speech problems** | 22% | (18–26) |
| History of | ||
| Chronic airway problems or atopic symptoms *** | 51% | (46–56) |
| Adenoidectomy | 47% | (42–52) |
| Tympanostomy tubes | 51% | (46–56) |
| Other ear-, nose-, and throat surgeries | 2% | (0.6–3) |
| Antibiotic prophylaxis | 15% | (11–19) |
| Ever had speech-therapy | 9% | (6–12) |
* at inclusion in the study
** reported by the caregiver
*** asthma, wheezing, hayfever, or eczema