Table 2

Characteristics of 1,574 patients presenting to the emergency department
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%)

Abbreviations: ADE = adverse drug event, SD = standard deviation, IQR = interquartile range,.

†There were two patients who arrived from an unknown location.

‡There were two patients with unknown disposition from the ED.

Hohl et al.

Hohl et al. BMC Health Services Research 2013 13:473   doi:10.1186/1472-6963-13-473

Open Data