Table 3:

Wait times by level of crowding in the emergency department for patients with a primary diagnosis of mental illness or another primary diagnosis

Primary diagnosis; median (IQR)Unadjusted analysisAdjusted analysis
Mental illness
n = 51 381
Other
n = 3 551 413
Difference between patient typesp valueDifference between patient types (95% CI)p value
Time to physician assessment,*min
 Not crowded62 (32–110)56 (30–97)8< 0.00110 (8 to 11)< 0.001
 Mild crowding90 (47–156)104 (50–179)−14< 0.001−14 (−12 to −15)< 0.001
 Moderate crowding110 (55–202)143 (60–268)−33< 0.001−39 (−35 to −42)< 0.001
 Severe crowding96 (48–211)146 (51–332)−50< 0.001−48 (−39 to −56)< 0.001
Decision to admit time
 Not crowded55 (8–144)97 (25–287)−42< 0.001−5 (0 to −9)0.002
 Mild crowding86 (24–255)179 (58–705)−93< 0.001−59 (−56 to −63)< 0.001
 Moderate crowding86 (24–246)247 (77–865)−161< 0.001−128 (−121 to −134)< 0.001
 Severe crowding83 (23–260)238 (64–774)−155< 0.001−106 (−86 to −134)< 0.001
  • Note: CI = confidence interval, IQR = interquartile rage.

  • * 20.8% of patients had missing or unknown values.

  • 10.2% of patients had missing or unknown values.