Table 1 Demographic and clinical data of the 335 RSV studied infants in the season of November 2005–April 2006
RSV Positive (n = 178) | RSV Negative (n = 157) | P | |
|---|---|---|---|
%Male (n = 214) | 59 | 41 | > 0.05 |
%Female (n = 121) | 73 | 17 | > 0.05 |
Age (months) | 3 ± 1.4 | 5 ± 7.1 | <0.05 |
%Age at time of hospitalization < 3 months (n = 132) | 63 | 37 | > 0.05 |
%Age at time of hospitalization < 6 months (n = 220) | 59 | 41 | <0.05 |
%Age at time of hospitalization > 6 months (n = 115) | 43 | 57 | > 0.05 |
Gestational age (weeks) | 38 ± 1,7 | 38 ± 1,9 | > 0.05 |
%Gestational age >36 weeks (n = 315) | 45 | 55 | > 0.05 |
Birth weight (gr.) | 2986 ± 680 | 3023 ± 609 | > 0.05 |
Birth weight group > 2500 g (n = 291) | 44.3 | 55.7 | > 0.05 |
Previous Hospitalization for LRTI (n = 97) | 37 | 63 | > 0.05 |
Breastfeeding (n = 187) | 58 | 129 | <0.05 |
Days of hospitalization | 6.4 ± 3.5 | 5.6 ± 3.1 | <0.05 |
Days of oxygen therapy (n = 235) | 4.9 ± 3.3 | 4.1 ± 2.3 | <0.05 |