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Patient characteristics
| Variables | Sex | Age (years) | Wells scores (mean ± SD) | ||||
|---|---|---|---|---|---|---|---|
| Female (%) | Male (%) | Age range | Mean ± SD | Positive PE (n) | Negative PE (n) | Indeterminate PE (n) | |
| Patients with nondiagnostic CTPA (n = 49) | 32 (64 %) | 17 (36 %) | 18–83 | 44.3 ± 16.9 | 6.0 ± 1.90 (5) | 2.25 ± 1.68 (43) | 2.5 (1) |
| Patients with nondiagnostic planar V/Q (n = 182) | 121 (66.4 %) | 61 (33.6 %) | 20–91 | 55.0 ± 18.3 | 5.67 ± 2.29 (33) | 1.67 ± 1.38 (140) | 2.06 ± 1.65 (9) |
