Burden of Respiratory Syncytial Virus Hospitalizations in Canada

Table 1

Demographic characteristics of infants hospitalized and families of infants hospitalized.

Infants hospitalized (n = 67)
Variable	Mean or N	SD or %
Sex
Male	35	52.2%
Female	32	47.8%
Gestational age at birth, weeks (mean; SD)	37.3	1.7
Infant chronological age, months (mean; SD)	2.7	2.5
Breastfed
Yes	58	86.6%
No	9	13.4%
Length of time child was breastfed, months^a	1.8	1.8
Comorbidities^b
Allergies	2	3.0%
Chronic lung disease	1	1.5%
Chronic congenital heart disease	7	10.5%
Chronic wheezing or asthma	3	4.5%
Down’s syndrome	2	3.0%
Severely immunocompromised	1	1.5%
Skin condition	4	6.0%
Maturity status
Mature	54	80.6%
Premature	13	19.4%
Gestational age for premature infants, weeks (mean; SD)	34.5	2.1
Families of infants hospitalized (n = 67)
Married
Yes	65	97.0%
No	2	3.0%
At least 1 child in day care
Yes	66	98.5%
No	1	1.5%
Number of children attending day care (mean; SD)	1.7	0.5
Number of siblings (mean; SD)	1.6	1.6

SD = standard deviation; ^aamong those who were breastfed; ^brates of cystic fibrosis and organ transplants were also examined although no infant received either diagnosis.