Influenza circulating viruses, positivity rate and risk factors for influenza associated severe acute respiratory infection during 2018/2019 winter season, Yemen

Table 1 Characteristics of patients with influenza-like illness and severe acute respiratory infection during 2018/2019 season in Yemen

	All case		SARI cases		ILI cases		p value
	N = 768	Percent (%)	N = 284	Percent 37 (%)	N = 484	Percent 63 (%)	p value
Age
< 15	143	19	38	13	105	22	0.004
15–< 25	56	7	19	7	37	8	Ref
25–< 35	118	15	38	13	80	17	0.821
35–< 45	141	18	54	19	87	18	0.567
45–< 55	110	14	50	18	60	12	0.156
55–< 65	83	11	27	10	56	12	0.864
≥ 65	117	15	58	20	59	12	0.303
Sex
M	531	69	195	69	336	69	0.825
F	237	31	89	31	148	31
Co morbidity
Yes	142	18	102	36	40	8	< 0.001
Diabetes
Yes	80	10	61	21	19	4	< 0.001
No	688	90	223	79	465	96
Hypertension
Yes	38	5	32	11	6	1	< 0.001
No	730	95	252	89	478	99
Heart disease
Yes	44	6	36	13	8	2	< 0.001
No	724	94	248	87	476	98
Renal diseases		0
Yes	49	6	31	11	18	4	< 0.001
No	719	94	253	89	466	96
Respiratory
Yes	23	3	18	6	5	1	< 0.001
No	745	97	266	94	479	99

ISSN: 1471-2334