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Table 2 Descriptive analysis of all combined hPIV cases laboratory and public health linked cases 2010–2013

From: Use of laboratory and administrative data to understand the potential impact of human parainfluenza virus 4 on cases of bronchiolitis, croup, and pneumonia in Alberta, Canada

  All cases (n, %) N = 2300
hPIV1 617 (27)
hPIV2 252 (11)
hPIV3 1067 (46)
hPIV4 364 (16)
Median age years (range) 2 (0.01–103)
Age
 0–1 years 1049 (46)
 2–4 years 386 (17)
 5–8 years 154 (7)
 9–11 years 32 (1.4)
 12–17 years 52 (2.3)
 18–64 years 367 (16)
 65 + years 259 (11)
 Unknown 1 (0.04)
Gender
 Male 1196 (52)
 Female 1090 (47)
 Unknown 2 (1)
Non hospitalized
(Family Doc or ER visit with no inpatient stay)
1332 (58)
Hospitalized 968 (42)
Croup 248 (11)
Bronchiolitis 305 (13)
Pneumonia 377 (16)
Mixed cases that have Croup Bronchiolitis and Pneumonia 103 (5)
Other clinical or respiratory disease 1267a (55)
  1. 51,888 negative specimens were excluded from analysis as the goal of this study was to compare the distribution of ICD9 codes for croup, bronchiolitis and pneumonia for hPIV1–4
  2. a These cases had a respiratory disease ICD-9 code that was not specific for croup, bronchiolitis or pneumonia. Out of 1267 cases, 835 (63 %) were non-hospitalized