Table 1.

Characteristics on inclusion.

	Placebon = 99	AMCLn = 104
Age (months)	17.9 ± 8.3	17.4 ± 8.8
Male	52 (52.5%)	60 (57.7%)
Weight (kg)	11.0 ± 2.5	11.0 ± 2.2
URI in previous 6 months	3 [0; 10]	3 [0; 10]
Adenoidectomy	3 (3.0%)	8 (7.7%)
Day care with other children	52 (52.5%)	56 (53.8%)
Passive smoking	32 (32.3%)	25 (24.0%)
GER	8 (8.1%)	9 (8.6%)
Breast feeding	35 (35.3%)	36 (34.6%)
Pacifier	51 (51.5%)	55 (52.9%)

AMCL,: amoxicillin/clavulanic acid; URI, upper respiratory tract infection; GER, gastro-esophageal reflux. Results are expressed as median [min; max] for discrete data; number (%) for qualitative data; mean ±s.d. for continuous data.