Table 2.
Characteristics of patients with pulmonary embolism present on admission
| Variable | All patients with PE present on admission, N ═ 73 | Patients with TDx > 6 hours, N ═ 19 | Patients with TDx ≤ 6 hours, N ═ 54 | P value |
|---|---|---|---|---|
| Age, years | 73 (66–82) | 77 (62–83) | 77.5 (65.8–84.0) | 0.37a |
| Sex, female | 33 (45.2) | 9 (47.4) | 24 (25) | 0.83b |
| Charlson Comorbidity Index | 6 (5–9) | 6 (4–9) | 6 (5–10) | 0.58a |
| CT PA performed after transfer | 11 (24.6) | 7 (36.8) | 4 (7.4) | 0.06b |
| CT PA performed during ICU stay | 12 (16.4) | 9 (47.4) | 3 (5.5) | <0.0001b, c |
| ICU LOS, days | 1.6 (0.9–2.1)d | 1.3 (0.6–2.0)e | 1.6 (1.0–2.1)f | 0.33a |
| Hospital LOS, days | 4.2 (2.6–6.2) | 3.9 (2.1–5.5) | 4.0 (2.8–5.6) | 0.39a |
| TDx, hours | 3.4 (2.6–6.3) | 12.6 (8.4–18.2) | 3.1 (2.2–3.5) | <0.0001a, c |
| TTx, hours | 3.5 (2.5–5.1) | 5.9 (3.5–10.3) | 3.1 (2.2–4.2) | 0.0001a,c |
| In-hospital mortality | 3 (4.1) | 2 (10.5) | 1 (1.8) | 0.16b |
Numbers indicate N (%) and median (IQR). aWilcoxon’s rank-sum test; bFisher exact test; cSignificant; dN ═ 51; eN ═12; fN ═ 39. CT PA: Computed tomography pulmonary angiogram; ICU: Intensive care unit; LOS: Length of stay; PE: Pulmonary embolism; TDx: Time to diagnostic certainty; TTx: Time to treatment.