Table 3. Prevalence of clinical features in RSV positive and RSV negative children under 5 years of age presenting to OPD of Kilifi District Hospital between May 2002 and April 2004.

Signs		% RSV positive	% RSV negative	P	RR$
		n = 166	n = 1977
Clinical∧	crackles	42.2	25.2	<0.001	1.63 (1.34–1.97)
	wheezing	4.8	2.3	0.065	2.13 (1.01–4.50)
	nasal flaring	6.6	2.3	0.003	2.66 (1.40–5.04)
	indrawing	13.9	5.7	<0.001	2.24 (1.47–3.40)
	hypoxia	2.4 (165)*	2.4 (1938)*	1.000	1.00 (0.37 2.74)
	fast breathing	26.8 (164)	19.2 (1963)	0.018	1.34 (1.03–1.75)
	cough	33.7	24.7	0.008	1.42 (1.13–1.78)
	fever (>37.5)	54.8	36.4 (1962)*	<0.001	1.54 (1.33–1.80)
Concurrent illness	Slide positive	14.6 (75)*	34.4 (850)*	<0.001
	Clinical diagnosis of malaria	10.2	20.4	0.001	0.55 (0.35–0.87)

Footnotes.

^$MH RR risk adjusted for ageclass.

^*Number of study participants included in this estimate.

^∧prostration was very rare and is not included in the table.