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Table 2 Clusters identified over space and time

From: Does emergency department use and post-visit physician care cluster geographically and temporally for adolescents who self-harm? A population-based 9-year retrospective cohort study from Alberta, Canada

Cluster

Time Frame

Location (sRHA)

Population

Cases

Expected Cases

Observed/Expected

Relative Risk

p-value

1

April 2002 to March 2006

27 Clearwater

59,652

(a)

1,027

717.84

1.43

1.58

<0.001

28 Brazeau

(b)

612

393.55

1.56

1.78

<0.001

 

29 Wetaskiwin-Hobbema

       
 

41 St. Albert

       
 

42 Edmonton Castle Downs

       
  

43 Edmonton Woodcroft

       
  

44 Edmonton Eastwood

       
  

45 Edmonton North Central

       
  

46 Edmonton North East

       
  

47 Edmonton Bonnie Doon

       
  

48 Edmonton West Jasper Place

       
  

49 Edmonton Twin Brooks

       
  

50 Edmonton Mill Woods

       
  

51 Sherwood Park

       
  

52 Strathcona County

       
  

53 Thorsby

       
  

54 Leduc Office

       
  

55 Beaumont

       
  

56 Westview

       
  

57 Sturgeon County

       
  

58 Fort Saskatchewan

       
  

59 Aspen West

       
  

60 Aspen Central

       
  

61 Aspen North

       
  

63 Peace NW

       
  

64 Peace NE

       
  

65 Peace SE

       
  

66 Peace SW

       

2

April 2003 to March 2007

1 Crowsnest Pincher Creek

620

(a)

28

7.94

3.53

3.54

<0.001

(b)

18

4.35

4.14

4.17

0.006

  1. sRHA sub-Regional Health Authority
  2. Legend: (a) adolescents with ED visits for self-harm; (b) adolescents without a 14-day physician follow-up after an ED visit for self-harm
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BMC Psychiatry

ISSN: 1471-244X

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