Research Article

Infections Caused by HRSV A ON1 Are Predominant among Hospitalized Infants with Bronchiolitis in São Paulo City

Table 1

Comparative analysis between the demographic and clinical characteristics of infants with HRSV infection caused by ON1 and by other genotypes.

All genotypes
HRSV A ON1
Other HRSV genotypes

Demographic
characteristics
(%)# (%)# (%)#

Gender
 M21 (65.6)16 (72.7)05 (50.0)0.21
 F11 (34.4)06 (27.3)05 (50.0)

Mean (sd)Mean (sd)Mean (sd)

Age in months2.45 (1.44)2.33 (1.42)2,71 (1,57)0,51##

Clinical
characteristics
(%)# (%)# (%)#

Cough31 (100)21 (100)10 (100)nsa
Fever12 (37,5)08 (38.1)04 (40.0)1.00
Dyspnea23 (85.2)17 (94.4)06 (66.7)0.09
Apnea02 (06.3)01 (9.09)01 (25.0)0.45
Complete Immunization for age###24 (96.0)18 (100)06 (85.1)0.28
Current
Breastfeeding
26 (89.6)18 (94.7)8 (80.0)0.27
Second-hand
smoking
06 (18.8)05 (33.3)01 (14.3)0.62
Admission in Critical Care Unit05 (15.6)03 (15.8)02 (20.0)0.64
Oxygen therapy27 (87,1)20 (95.2)07 (70.0)0.09
Mechanic
ventilation
02 (6,45)02 (09.1)00 (00.0)1.00

Mean (sd)Mean (sd)Mean (sd)

Duration of stay5.13 (4.38)5.91 (4.84)3.40 (2.59)0,14##

are relative to the number of cases with complete information; of ON1 × other genotypes; exact test; ’s t-test; to Brazilian National Program of Immunization.