Table 1

Baseline characteristics

 All Edmonton Rural Alberta Regina
Screened (N)17231371185167
Included (N, %)417 (24.2%)304 (22.2%)30 (16.2%)83 (49.7%)
Male (N, %)220 (52.8%)156 (51.3%)14 (46.7%)50 (60.2%)
Mean±SD age58.0±18.156.3±18.567.6±14.760.4±16.4
Hours in ED—median (range)6 (4.0, 8.5)6.3 (4.4, 9.0)2.2 (1.2, 3.5)6.0 (4.5, 8.3)
Weight done (N, %)*300 (71.9%)204 (67.1%)19 (63.3%)77 (92.8%)
Weight (median)84 (68.1, 99.3)81.6 (67.5, 98.5)73.0 (68.0, 93.0)87.0 (77.0, 103.0)
Cr Cl (N,%)*328 (78.7%)235 (77.3%)22 (73.3%)71 (85.5%)
 <30 mL/min10 (3.0%)7 (3.0%)2 (9.1%)1 (1.4%)
 30–49 mL/min34 (10.4%)21 (8.9%)5 (22.7%)8 (11.3%)
 >50 mL/min284 (86.6%)207 (88.1%)15 (68.2%)62 (87.3%)
VTE
 DVT273 (65.5%)172 (56.6%)24 (80.0%)77 (92.8%)
  Distal52 (19.0%)16 (9.3%)7 (33.3%)29 (40.3%)
  Proximal†204 (74.7%)147 (85.5%)14 (66.7%)43 (59.7%)
  Not documented17 (6.2%)9 (5.2%)3 (12.5%)5 (6.5%)
 PE and PE+DVT‡144 (34.5%)132 (43.4%)6 (20.0%)6 (7.2%)
PE—simplified PESI Score
 0 point96 (66.6%)92 (69.7%)1 (16.7%)3 (50.0%)
 ≥1 points48 (33.6%)40 (30.3%)5 (83.3%)3 (50.0%)
History of
 Prior VTE92 (22.1%)68 (22.4%)6 (20.0%)18 (21.7%)
 Cancer64 (15.3%)44 (14.5%)7 (23.3%)13 (15.7%)
 Pulmonary disease41 (9.8%)34 (11.2%)2 (6.7%)5 (6.0%)
 Recent surgery30 (7.2%)23 (7.6%)1 (3.3%)6 (7.2%)
  • *Not all patients had weight and serum creatinine documented in the chart.

  • †Combined popliteal, femoral, common femoral and iliac.

  • ‡PE and PE+DVT are reported together.

  • Cr Cl, creatinine clearance; DVT, deep vein thrombosis; ED, emergency department; PE, pulmonary embolism; PESI, Pulmonary Embolism Severity Index; VTE, venous thromboembolism.