Table 4.
Characteristics for the matched pairs separated by treatment (N = 40)
| Non-operative treatment (N = 20) | Operative treatment (N = 20) | P value | |
|---|---|---|---|
| Patients’ characteristics | |||
| Age at trauma (years)a | 57 (44–69) | 60 (41–69) | 0.247c |
| Male genderb | 15 (75%) | 15 (75%) | 1.000d |
| ASAb | |||
| ASA-I | 7 (35%) | 8 (40%) | 0.126d |
| ASA-II | 12 (60%) | 7 (35%) | |
| ASA-III | 1 (5%) | 5 (25%) | |
| Injury characteristics | |||
| High energy traumab | 20 (100%) | 20 (100%) | 1.000d |
| Affected side flail segmentb | |||
| Unilateral | 20 (100%) | 18 (90%) | 0.500d |
| Bilateral | 0 (0%) | 2 (10%) | |
| Lung contusionb | 14 (70%) | 18 (90%) | 0.289d |
| Unilateral | 13 (93%) | 13 (72%) | 0.500d |
| Bilateral | 1 (7%) | 5 (28%) | |
| ISSa | 32 (21–41) | 31 (21–48) | 0.477c |
| GCS on admissiona | 13 (3–15) | 15 (6–15) | 0.243c |
| Intubated on admissiona | 6 (30%) | 5 (25%) | 1.000d |
| Total number of fractured ribsa | 10 (8–10) | 10 (9–14) | 0.097c |
| Fractured ribs at flail segmenta | 5 (3–7) | 6 (5–8) | 0.021c |
| Fractured ribs at non-flail sidea | 5 (2–7) | 5 (3–7) | 0.840c |
Data are presented as amedian (P25–P75) or as bnumber (%) and were analyzed with a cWilcoxon signed rank test or a dMcNemar test
ASA American Society of Anesthesiologists, GCS Glasgow Coma Scale, HET High Energy Trauma, ISS Injury Severity Score