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Table 1 Descriptive statistics of the main quantitative measurements used as explanatory variables in regression models

From: Longitudinal study of influenza A virus circulation in a nursery swine barn

Variable Study 1a Study 2b
Median (IQR) Median (IQR)
H3N2_Ac 10 (15) 40 (40)
H3N2_Bc 40 (60) 160 (80)
H3N2_Cc 20 (30) 80 (120)
H3N2_homed 40 (140) 80 (120)
H1N2e 40 (20) 80 (120)
H1N1_Cf 10 (15) 10 (15)
H1N1_Pg 10 (15) 20 (30)
H1N1_homed 40 (70) 20 (30)
Variable Study 1a Study 2b
Mean (SD) Mean (SD)
Room5
 RH (%) 76.8 (6.3) 65.8 (7.4)
 Temp (°C) 23.7 (1.3) 24.5 (1.5)
 AH (mb)h 23.1 (1.8) 20.8 (2.7)
Room6
 RH (%) 75.4 (10.0) 71.9 (7.3)
 Temp (°C) 24.3 (1.7) 24.8 (1.5)
 AH (mb)h 23.9 (4.0) 23.2 (2.7)
Room7
 RH (%) 68.6 (9.2) 69.0 (10.0)
 Temp (°C) 23.8 (1.5) 23.7 (2.2)
 AH (mb)h 21.0 (3.5) 21.1 (4.3)
  1. Median and interquartile range, or mean and standard deviation were used, as it was deemed appropriate.
  2. a,bTwo distinct longitudinal studies of IAV circulation were performed in nursery pigs.
  3. cDifferent H3N2 variants broadly classified into cluster 4 of H3N2 swine influenza A virus and isolated in Ontario in 2012 and used in the hemagglutination inhibition assay.
  4. dH3N2 and H1N1 viruses detected in the study and used as antigens in the hemagglutination inhibition assay.
  5. eH1N2 with hemagglutinin of the 2009 pandemic lineage and neuraminidase of the Cluster 4 H3N2 IAV-S.
  6. fH1N1 IAV-S broadly classified as the classical swine H1N1 virus used in hemagglutination inhibition assay.
  7. gH1N1 IAV-S of the 2009 H1N1 pandemic lineage used in hemagglutination inhibition assay.
  8. hAbsolute humidity expressed as milibar (MB).