Age-adjusted characteristics in patients with respiratory viral co-infection compared to mono-infection.

aReference category.bBack transformation of the mean age-adjusted natural log values analyzed, along with back transformed 95% confidence intervals.cOdds ratios not computed on variables with zero occurrences in a cell category.dAdjusted means and standard errors are presented.eNAD: No acute disease; IO: interstitial opacities; FASD: focal airspace disease; MFASD: multifocal airspace disease.