Research Article
Primary Spontaneous Pneumothorax Admitted in Emergency Unit: Does First Episode Differ from Recurrence? A Cross-Sectional Study
Table 1
Patients characteristics and conditions of occurrence in first PSP and recurrence admissions.
| Variables | Category | First PSP (%) | Recurrence PSP (%) | value |
| Gender | | | | 0.87 | | Female | 199 (21.75%) | 125 (21.97%) | | | Male | 716 (78.25%) | 444 (78.03%) | | Age | | | | 0.34 | | <30 years | 623 (68.76%) | 369 (65.54%) | | | 30–39 years | 215 (23.73%) | 152 (27.00%) | | | 40–49 years | 68 (7.51%) | 42 (7.46%) | | Smokers | | | | 0.30 | | Yes | 534 (76.83%) | 270 (74.38%) | | | No | 161 (23.17%) | 93 (25.62%) | | Cannabis | | | | 0.13 | | Yes | 54 (5.95%) | 22 (3.85%) | | | No | 854 (94.05%) | 550 (96.15%) | | Date of occurrence | | | | 0.46 | | Week | 704 (76.94%) | 427 (74.91%) | | | Weekend | 211 (23.06%) | 143 (25.09%) | | Season of occurrence | | | | 0.25 | | Spring | 216 (23.61%) | 157 (27.54%) | | | Summer | 219 (23.93%) | 114 (20.00%) | | | Autumn | 246 (26.89%) | 152 (26.67%) | | | Winter | 234 (25.57%) | 147 (25.79%) | | Conditions of occurrence | | | | 0.90 | | Rest | 496 (77.38%) | 281 (77.41%) | | | Activity | 145 (22.62%) | 82 (22.59%) | | Place of occurrence | | | | | | At home | 378 (55.75%) | 252 (64.62%) | | | Other | 300 (44.25%) | 138 (35.38%) | | Time of occurrence | | | | | | Day | 388 (65.76%) | 202 (59.24%) | | | Night | 202 (34.24%) | 139 (40.76%) | |
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PSP, primary spontaneous pneumothorax. value: degree of statistical significance in multilevel analysis. Values with are the significant variable.
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