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Table 2 Emergency department (ED) visits and outpatient service use, by cohort. N(%) except where indicated

From: The relationship between outpatient service use and emergency department visits among people treated for mental and substance use disorders: analysis of population-based administrative data in British Columbia, Canada

 

Common mental disorders

N = 241,177 (71.6%)

Serious mental disorders

N = 48,138 (14.3%)

Substance use disorders

N = 47,658 (14.1%)

Emergency department visits in 2017/8

 

MSUD ED visits (mean, SD)

0.1

± 0.5

0.3

± 1.2

0.9

± 3.2

0

227,018

(94.1%)

41,373

(85.9%)

33,783

(70.9%)

1

10,084

(4.2%)

3594

(7.5%)

6378

(13.4%)

2–5

3798

(1.6%)

2763

(5.7%)

5668

(11.9%)

6–11

238

(0.1%)

330

(0.7%)

1242

(2.6%)

12+

39

(0.0%)

78

(0.2%)

587

(1.2%)

Other ED visits

70,836

(29.4%)

12,708

(26.4%)

14,848

(31.2%)

Outpatient service use 2016/7 or 365 days before first ED visit in 2017/8

  

Primary care visits (mean, SD)

10.5

± 8.5

9.8

± 9.2

10.4

± 10.0

0 visits

2794

(1.2%)

3417

(7.1%)

4176

(8.8%)

1 visit

5565

(2.3%)

2475

(5.1%)

2905

(6.1%)

2 visits

10,618

(4.4%)

2735

(5.7%)

2904

(6.1%)

3+ visits

222,200

(92.1%)

39,511

(82.1%)

37,673

(79.0%)

MSUD primary care visits (mean, SD)

3.2

± 3.1

3.2

± 4.2

3.7

± 5.0

0 visits

18,521

(7.7%)

13,414

(27.9%)

13,537

(28.4%)

1 visit

49,340

(20.5%)

7862

(16.3%)

7288

(15.3%)

2 visits

54,878

(22.8%)

6683

(13.9%)

5714

(12.0%)

3+ visits

118,438

(49.1%)

20,179

(41.9%)

21,119

(44.3%)

Continuity of care index

5.8

± 3.4

5.5

± 3.7

4.3

± 3.5

Psychiatrist Visits (mean, SD)

1.0

± 4.1

5.5

± 7.8

1.5

± 4.7

0 visits

198,185

(82.2%)

11,442

(23.8%)

36,091

(75.7%)

1 visit

10,750

(4.5%)

3307

(6.9%)

3011

(6.3%)

2 visits

6597

(2.7%)

4231

(8.8%)

1684

(3.5%)

3+ visits

25,645

(10.6%)

29,158

(60.6%)

6872

(14.4%)

  1. Notes: Common mental disorders included depressive disorders, anxiety disorders, and post-traumatic stress disorder. Serious mental disorders comprised schizophrenia spectrum, and bipolar disorders. People treated for both a common and serious MD were grouped into the serious MD cohort. Substance use disorders included alcohol-related disorders, opioid-related disorders, cannabis-related disorders, stimulant-related disorders, and other substance use abuse. People treated for both a MD (common and/or serious) and a SUD were grouped into the SUDs cohort