Table 1 Characteristics and risk factors for spontaneous pneumothorax (SP) in patients according to seasons*
Characteristics | Spring (n = 25) | Summer (n = 12) | Autumn (n = 12) | Winter (n = 9) | P |
|---|---|---|---|---|---|
Male/Female | 21/4 | 11/1 | 11/1 | 8/1 | 0.87 |
Age (years) | 40 ± 20 | 31 ± 15 | 30 ± 18 | 34 ± 18 | 0.43 |
Smoking History +/- | 18/7 | 10/2 | 7/5 | 7/2 | 0.56 |
Severity of SP | |||||
Moderate | 13 | 3 | 5 | 6 | |
Severe | 4 | 4 | 3 | 0 | 0.28 |
Undefined** | 8 | 5 | 4 | 3 |