Clinical Epidemiological Characteristics and Risk Factors for Severe Bronchiolitis Caused by Respiratory Syncytial Virus in Vietnamese Children

Table 2

Epidemiological characteristics of children with acute bronchiolitis caused by RSV ().

Variables	Numbers of patients	Percentage (%)
Sex
Boy	261	69.2
Girl	116	30.8
Area
Urban	64	17.0
Suburb	271	71.9
Other	42	11.1
Age (month)
≤6	217	57.5
7-11	84	22.3
12-17	52	13.8
18-24	24	6.4
Severity
Mild-moderate	330	87.5
Severe	47	12.5