Etiology, clinical characteristics and coinfection status of bronchiolitis in Suzhou

BMC Infectious Diseases

Table 2 The Demographic and Clinical Characteristics of 842 Patients with Bronchiolitis Associated with Single/Mixed infections

Characteristics	Single virus	Single MP	Mixed viruses	Mixed viruses/MP	P value
No. of patients	614	91	70	67	–
Age, months ^ac	5.58	8.80	7.51	8.12	< 0.001
Gender, % male	72.5	67	74.3	67.2	0.560
Duration of symptoms before admission, days ^bd	5	9	7	7	< 0.001
Length of stay ^b	8	7	8	8	0.038
Fever, %^e	23.6	40.7	35.7	50.7	< 0.001
Nasal congestion, %	45.8	31.9	41.4	49.3	0.082
Tachypnoea, %	21.5	13.2	20	17.9	0.303
Dyspnea, %	6.8	2.2	5.7	4.5	0.340
WBC count, × 10⁹/L ^a	9.77	10.20	9.72	10.92	0.159
Percentage of neutrophils ^af	33.3	39.05	38.46	40.78	< 0.001
CRP, mg/L^b	0.39	0.76	0.34	0.96	0.133
Need of oxygen, %^g	21.7	8.8	11.4	22.4	0.008
PICU admission, %	10.6	5.5	10	7.5	0.429

^a The mean value was used
^b The median value was used
^cPosthoc multiple comparisons between groups found that significant differences were observed between single virus and single MP group (5.58 vs 8.80), single virus and mixed viruses group (5.58 vs 7.51), single virus and mixed viruses/MP group (5.58 vs 8.12)
^dPosthoc multiple comparisons between groups found that significant differences were observed between single virus and single MP group (5 vs 9), single virus and mixed viruses/MP group (5 vs 7)
^ePosthoc multiple comparisons between groups found that significant differences were observed between single virus and single MP group (23.6 vs 40.7), single virus and mixed viruses group (23.6 vs 35.7), single virus and mixed viruses/MP group (23.6 vs 50.7)
^fPosthoc multiple comparisons between groups found that significant differences were observed between single virus and single MP group (33.30 vs 39.05), single virus and mixed viruses group (33.30 vs 38.46), single virus and mixed viruses/MP group (33.30 vs 40.78)
^gPosthoc multiple comparisons between groups found that significant differences were observed between single virus and single MP group (21.7 vs 8.8), single virus and mixed viruses group (21.7vs 11.4), single MP and mixed viruses/MP group (8.8 vs 22.4)

ISSN: 1471-2334