Skip to main content

Table 2 Characteristics of 1,574 patients presenting to the emergency department

From: Evaluating adverse drug event reporting in administrative data from emergency departments: a validation study

Characteristic All patients (n = 1574) With chief complaint related ADE With incidentally found ADE only Without ADEs
   (n = 158) (n = 63) (n = 1,353)
Age, yrs, mean (SD) 51.4 (20.3) 50.8 (20.8) 63.5 (19.7) 50.9 (20.1)
Female 805 (51.1%) 76 (48.1%) 26 (41.3%) 703 (52.0%)
Arrived from, no. (%)
  Home 1404 (89.2%) 131 (82.9%) 56 (88.9%) 1217 (89.9%)
  Homeless/Shelter 64 (4.1%) 14 (8.9%) 2 (3.2%) 48 (3.5%)
  Nursing home 65 (4.1%) 9 (5.7%) 3 (4.8%) 53 (3.9%)
  Other 39 (2.5%) 4 (2.5%) 2 (3.2%) 33 (2.4%)
Canadian triage acuity score, no. (%)
  1 6 (0.4%) 2 (1.3%) 0 (0.0%) 4 (0.3%)
  2 225 (14.3%) 20 (12.7%) 10 (15.9%) 195 (14.4%)
  3 693 (44.0%) 77 (48.7%) 36 (57.1%) 580 (42.9%)
  4 579 (36.8%) 50 (31.6%) 14 (22.2%) 515 (38.1%)
  5 71 (4.5%) 9 (5.7%) 3 (4.8%) 59 (4.4%)
Most common chief complaints, no. (%)
  Abdominal pain 157 (10.0%) 4 (2.5%) 9 (14.3%) 144 (10.6%)
  Chest pain 115 (7.3%) 4 (2.5%) 4 (6.4%) 107 (7.9%)
  Shortness of breath 96 (6.1%) 14 (8.9%) 5 (7.9%) 77 (5.7%)
  Lower extremity pain 79 (5.0%) 4 (2.5%) 2 (3.2%) 73 (5.4%)
  Back pain 64 (4.1%) 4 (2.5%) 0 (0.0%) 60 (4.4%)
No. comorbid conditions, mean (SD) 2.1 (2.0) 2.7 (2.2) 3.3 (1.8) 1.9 (2.0)
Most prevalent comorbid conditions, no. (%)
  Hypertension 382 (24.3%) 43 (27.2%) 36 (57.1%) 303 (22.4%)
  Mood disorder 201 (12.8%) 35 (22.2%) 7 (11.1%) 159 (11.8%)
  Dyslipidemia 125 (7.9%) 15 (9.5%) 5 (7.9%) 105 (7.8%)
  Asthma 120 (7.6%) 20 (12.7%) 6 (9.5%) 94 (6.9%)
  Diabetes Mellitus 119 (7.6%) 22 (13.9%) 9 (14.3%) 88 (6.5%)
No. prescribed medications, median (IQR) 2 (1,5) 4 (2,7) 4 (2,8) 2 (1,5)
Most commonly prescribed outpatient medications, no. (%)
  Acetaminophen with codeine 195 (12.4%) 29 (18.4%) 8 (12.7%) 158 (11.7%)
  Ramipril 134 (8.5%) 12 (7.6%) 7 (11.1%) 115 (8.5%)
  Salbutamol 123 (7.8%) 16 (10.1%) 8 (12.7%) 99 (7.3%)
  Rabeprazole 117 (7.4%) 12 (7.6%) 10 (15.9%) 95 (7.0%)
  Lorazepam 106 (6.7%) 7 (4.4%) 6 (9.5%) 93 (6.9%)
Disposition from the ED, no. (%)
  Admitted 283 (18.0%) 40 (25.3%) 20 (31.7%) 223 (16.5%)
  Home 1279 (81.3%) 113 (71.5%) 42 (66.7%) 1124 (83.1%)
  Deceased 3 (0.2%) 0 (0.0%) 0 (0.0%) 3 (0.2%)
  Other 7 (0.4%) 5 (3.2%) 1 (1.6%) 1 (0.1%)
  1. Abbreviations: ADE = adverse drug event, SD = standard deviation, IQR = interquartile range,.
  2. †There were two patients who arrived from an unknown location.
  3. ‡There were two patients with unknown disposition from the ED.