Table 2.

Comparison between the demographic and epidemiologic characteristics of acute respiratory infections by viral causes among study participants

Characteristic	Total patients (n = 530)		Influenza (n = 134)		RSV (n = 111)		Influenza/RSV coinfection (n = 14)		Negative for influenza and RSV (n = 270)		P value
	Number	Percent	Number	Percent	Number	Percent	Number	Percent	Number	Percent
Age groups (years)
0–5 months	41	7.7	1	0.7	20	18.0	1	7.1	19	7.0	< 0.001
6–11 months	41	7.7	6	4.5	15	13.5	0	0.0	20	7.4
12–23 months	114	21.5	8	6.0	10	9.0	3	21.4	58	21.5
2–4 years	301	56.8	25	18.7	27	24.3	4	28.6	161	59.6
5–15 years	33	6.3	94	70.1	39	35.1	6	42.9	12	4.4
Gender
Male	304	42.6	85	63.4	55	49.5	8	57.1	155	57.4	0.188
Female	226	57.4	49	36.6	56	50.5	6	42.9	115	42.6
Region
Upper Egypt	184	34.7	53	39.6	41	36.9	4	28.6	85	31.5	0.494
Lower Egypt	188	35.5	40	29.9	33	29.7	5	35.7	110	40.7
Frontier	78	14.7	23	17.2	20	18.0	2	14.3	33	12.2
Urban governorates	80	15.1	18	13.4	17	15.3	3	21.4	42	15.6
Comorbidity	16	3.0	1	0.7	2	1.8	1	7.1	12	4.4	0.147
Attending school or nursery	209	39.4	71	53.0	20	18.0	4	28.6	113	41.9	< 0.001
Symptoms
Fever	480	90.6	123	91.8	101	91.0	14	100.0	241	89.3	0.670
Cough	238	44.9	65	48.5	53	47.7	4	28.6	115	42.6	0.356
Sore throat	374	70.6	95	70.9	70	63.1	10	71.4	199	73.7	0.407
Rhinorrhea	284	53.6	59	44.0	60	54.1	10	71.4	155	57.4	0.048
Headache	10	1.9	3	2.2	2	1.8	0	0.0	5	1.9	0.984
Dyspnea	270	50.9	66	49.3	69	62.2	8	57.1	127	47.0	0.022
Vomiting	30	5.7	14	10.4	4	3.6	1	7.1	11	4.1	0.080
Diarrhea	21	4.0	3	2.2	6	5.4	0	0.0	12	4.4	0.600
Arthralgia	97	18.3	24	17.9	19	17.1	3	21.4	51	19.0	0.954
Mean duration Onset-outpatient clinic visit	4.0 ± 3.8		3.4 ± 2.6		3.9 ± 3.0		2.9 ± 1.4		4.4 ± 4.6		0.04

*RSV = Respiratory Syncytial virus