Table 4 Comparison of pneumonia incidences in patients with vocal cord paralysis or chronic obstructive pulmonary disease between the two groups
Study group (n = 53) | Control group (n = 53) | P | |
|---|---|---|---|
Patients with pneumonia/Patients with vocal cord paralysis, n/n (%) | 1/7 (14.3%) | 4/6 (66.7%) | < 0.05 |
Patients with pneumonia/Patients with COPD, n/n (%) | 2/14 (14.3%) | 6/11 (54.5%) | < 0.05 |