a nonsignificant trendP = .07
There was a nonsignificant trend for association between atelectasis and higher pretreatment cough frequency (RR, 2.71; 95% CI, 0.91-8.1; P = .07).
There was a nonsignificant trend for association between atelectasis and higher pretreatment cough frequency (RR, 2.71; 95% CI, 0.91-8.1; P = .07).
Older age had a strong trend for more cough frequency during treatment in our models ( Table 2 , Table 3 , Table 4 ).