Statistical analysis
All statistical calculations were
performed using Graphpad Prism 7 software. The paired t test was used to
evaluate the statistical significance of differences in lung function
index before and after atomization. Categorical variables were compared
using the Chi-squared test. Risk factors for abnormal lung function were
analyzed by multivariate logistic regression, and the OR value and 95%
confidence interval (CI) for each risk factor were calculated. P-values
< 0.05 was considered to
be statistically significant.