Comparison of low-grade DSS with high-grade DSS in predicting early surgical intervention and rate of recurrence after first episode of primary spontaneous pneumothorax (PSP).
| Low-grade DSS (n=8) | High-grade DSS (n=37) | P value | |
|---|---|---|---|
| Median age, years (IQR) | 35 (23.5-46.7) | 31 (24-34.5) | 0.51 |
| Male, n (%) | 8 (100%) | 29 (78%) | 0.32 |
| Right sided, n (%) | 3 (37.5%) | 17 (46%) | 0.72 |
| Current/ex-smoker, n (%) | 5 (62.5%) | 28 (75.7%) | 0.66 |
| Median LOS, days (IQR) | 5 (3.2-8.5) | 8 (4-12) | 0.52 |
| Surgical intervention, n (%) | 0 | 25 (67.5%) | 0.0006 |
| Recurrence at 1 year, n (%) | 0 | 5 (13.5%) | 0.57 |
DSS = dystrophy severity score; IQR = interquartile range; LOS = length of stay.