Comorbidities that did not reach statistical significance in univariable analyses ( P > 0.05) were excluded from multivariable logistic regression analysis to avoid overfitting.
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Risk factors for severe and prolonged cough in influenza and COVID-19: A <i>post hoc</i> analysis of three randomized controlled trials.
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0.0500
0.1500
The sentences
a nonsignificant trendP = 0.15
Antiviral therapy demonstrated a nonsignificant trend toward lower risk of prolonged cough in both influenza (aOR 0.67, 95 % CI: 0.39–1.16, P = 0.15) and COVID-19 (aOR 0.65, 95 % CI: 0.41–1.02, P = 0.06).