Table 1 Distribution of baseline information by real-time polymerase chain reaction (RT-PCR) results
Variables | RT-PCR-positive (n = 523) | RT-PCR-negative (n = 219) | P value |
|---|---|---|---|
Age (years), mean ± SD | 56.55 ± 14.75 | 56.72 ± 15.23 | 0.885 |
Sex, n (%) | |||
Male | 317 (60.6) | 134 (61.2) | 0.884 |
Female | 206 (39.4) | 85 (38.8) | |
CVDs, n (%) | |||
Yes | 219 (41.9) | 93 (42.5) | 0.882 |
No | 304 (58.1) | 126 (57.3) | |
Asthma/COPD, n (%) | |||
Yes | 52 (9.9) | 19 (8.7) | 0.593 |
No | 471 (90.1) | 200 (91.3) | |
Diabetes, n (%) | |||
Yes | 130 (24.9) | 52 (23.7) | 0.748 |
No | 393 (75.1) | 167 (76.3) | |