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Table 1 Demographic and clinical characteristics of 110 healthy infants

From: Detection of respiratory syncytial virus and rhinovirus in healthy infants

Characteristics All infants (n = 110) Rhinovirus positive (n = 16) Rhinovirus negative (n = 94) P value
Demographics characteristics
Age in months, median (IQR) 3.8 (2.0–5.1) 4.3 (3.6–5.8) 2.6 (1.9–4.5) 0.03
Sex     0.60
 Male 62 (56) 10 (63) 52 (55)  
 Female 48 (44) 6 (38) 42 (45)  
Race/ethnicity     0.80
 Non-hispanic white 56 (51) 10 (63) 46 (49)  
 Non-hispanic black 11 (10) 1 (6) 10 (11)  
 Hispanic 20 (18) 3 (19) 17 (18)  
 Other 23 (21) 2 (13) 21 (22)  
Insurance     0.30
 Private 89 (81) 15 (94) 74 (79)  
 Public 21 (19) 1 (6) 20 (21)  
Home environment characteristics  
Sibling in home 47 (43) 7 (44) 40 (43) 0.93
Day care attendance 16 (15) 7 (44) 9 (10) 0.002
Exposure to passive smoke in home 4 (4) 2 (13) 2 (2) 0.04
Clinical characteristics  
Gestational age     0.30
 ≥40 weeks 46 (42) 4 (25) 42 (45)  
 38–39 weeks 53 (48) 10 (63) 43 (46)  
 34–37 weeks 11 (10) 2 (13) 9 (10)  
Delivery mode     0.92
 Vaginal delivery 70 (64) 10 (63) 60 (64)  
 Cesarean section 40 (36) 6 (38) 34 (36)  
Primarily breast milk feeding from ages 0 to 3 months 84 (76) 12 (75) 72 (77) 0.99
Eczema 17 (15) 4 (25) 13 (14) 0.27
  1. Data were expressed as numbers (percentages) unless otherwise indicated