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Univariate analysis of features of broken and intact nail cohorts
| Intact nail | Broken nail | P value | |
|---|---|---|---|
| Patients (n) | 209 | 22 | |
| Long nail (%) | 37.5 | 86 | |
| Male (%) | 30 | 27 | 1.0 (χ2 test) |
| Mean age (years) | 79.6 | 70.4 | < 0.0005 (t test) |
| ASA score I or II (%) | 38 (79/209) | 59 (13/22) | 0.067 (χ2) |
| Confirmed pathological fracture (%) | 5 (11/209) | 41 (9/22) | < 0.0001 (χ2) |
| Subtrochanteric fracture (%) | 17% (36/209) | 95% (21/22) | < 0.0001 (χ2test) |
ASA = American Society of Anesthesiologists
