TABLE 1.

Demographic characteristics of the study population divided into HRSV-positive or -negative cases

SeasonTotal no. of cases screenedHRSV-positive casesHRSV-negative cases
No. of casesAvg age (yr) ± SDaAge distribution [no. (%) of patients]bNo. (%) of malesNo. of casesAvg age (yr) ± SDcAge (yr) distribution [no. (%) of patients]bNo. (%) of males
0-1 yr1-2 yr>2 yr0-1 yr1-2 yr>2 yr
2001-200274330.8 ± 0.624 (72.7)7 (21.2)2 (6.1)17 (51.5)410.9 ± 0.624 (58.5)14 (34.1)3 (7.3)25 (61.0)
2002-2003197601.1 ± 0.833 (55.0)18 (30.0)9 (15.0)35 (58.3)1371.0 ± 0.884 (61.3)34 (24.8)19 (13.9)85 (62.0)
2003-2004233751.2 ± 0.839 (52.0)19 (25.3)17 (22.7)43 (57.3)1581.1 ± 0.883 (52.5)55 (34.8)20 (12.7)90 (57.0)
2004-2005114451.4 ± 0.816 (35.6)19 (42.2)10 (22.2)22 (48.9)691.0 ± 0.735 (50.7)25 (36.2)9 (13.0)40 (58.0)
2005-20062251211.3 ± 0.944 (36.4)51 (42.1)26 (21.5)65 (53.7)1041.3 ± 1.048 (46.2)30 (28.8)26 (25.0)61 (58.7)
2006-20072621541.8 ± 1.141 (26.6)52 (33.8)62 (40.3)89 (57.8)1061.4 ± 1.147 (44.3)32 (30.2)26 (24.5)64 (60.4)
All seasons11034881.4 ± 1.0197 (40.4)166 (34.0)126 (25.8)271 (55.5)6151.1 ± 0.9321 (52.2)190 (30.9)103 (16.7)365 (59.3)
  • a Statistically significant differences in average age of HRSV-positive patients were shown between seasons 2001-2002 and 2006-2007 (P = 0.000), 2002-2003 and 2006-2007 (P = 0.002), 2003-2004 and 2006-2007 (P = 0.013), and 2001-2002 and 2005-2006 (P = 0.046).

  • b No statistically significant differences in age distribution were shown between seasons in HRSV-positive or -negative patients.

  • c No statistically significant differences in average ages of HRSV-negative patients were shown between seasons.