Table 1.

Characteristics of infants during the first airway infection

Characteristics	All infants (N = 98)	Rhinovirus detected (n = 67)	RSV detected (n = 39)
Median age in days (range)	104 (33–269)	99 (33–269)	115 (51–269)
Median days of illness at time sampling (range)	3.5 (2–31)c	4 (2–16)	4 (2–12)
% male	58%	60%	62%
Symptoms
Rhinorrhoea
None	15%	15%	18%
Mild	55%	58%	46%
Moderate–severe	30%	27%	36%
Cough
None	17%	18%	5%
Mild	36%	46%	28%
Moderate	37%	30%	46%
Severe	10%	6%	21%
Wheezinga	8%	6%	10%
Fever >38°C	17%	12%	23%
Hoarseness	28%	22%	31%
Apnoeab	3%	2%	5%
Cyanosis	1%	0%	3%
Retractions	6%	3%	5%
Tachypnoea	20%	16%	28%
Median sum score (range)	3 (0–25)	3 (0–15)	4 (1–25)
0–4	64%	72%	56%
5–10	25%	22%	26%
>10	11%	6%	18%

The values represent percentages, unless indicated otherwise

^aReported by parents

^bN = 97

^cDuration of illness: IQR = 3–5