Table 2 The age and gender of each patient group
Characteristics | CTD-ILD n = 84 | CTD n = 71 | Pulmonary infection n = 61 | Healty controls n = 60 | p |
|---|---|---|---|---|---|
Gender, n (%) | 0.342 | ||||
Female | 64 (76.19) | 56 (78.87) | 40 (65.57) | 44 (73.33) | |
Male | 20 (23.81) | 15 (21.13) | 21 (34.43) | 16 (26.67) | |
Age (years), mean ± SD | 51.2 ± 13.75 | 53.8 ± 11.58 | 54.6 ± 12.89 | 52.9 ± 15.67 | 0.07 |