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Table 3 Sociodemographic and clinical characteristics of cases of suicide attempters in the high and low lethality group

From: Psychiatric assessment of suicide attempters in Japan: a pilot study at a critical emergency unit in an urban area

   High lethality group (N = 225) Low lethality group (N = 95) Analysis
   N (%) N (%) χ2 df P
Gender       n.s.
  Male 96 (43) 30 (32)    
  Female 129 (57) 65 (68)    
  Male middle age 34 (15) 9 (9) 5.9 1 < 0.05
Age       
  Mean§ 39.8 ± 15.7 34.8 ± 15.9 z = -3.1   < 0.01
Stay in hospital (days)       
  Mean§ 23.0 ± 41.3 5.0 ± 4.1 z = -8.7   < 0.001
Marital status       n.s.
  Single 87 (39) 44 (46)    
  Married 81 (36) 27 (28)    
  Divorced 31 (14) 7 (7)    
  Widowed 2 (1) 1 (1)    
  Common-law 14 (6) 7 (7)    
Employed status       n.s.
  Employed 95 (42) 38 (40)    
  Unemployed 126 (56) 52 (55)    
Current psychiatric treatment       n.s.
  Outpatient 135 (60) 69 (73)    
  Hospitalization 4 (2) 0 (0)    
  No treatment 71 (32) 18 (19)    
Living status     6.6 2 < 0.05
  Alone 51 (23) 17 (18)    
  Together 172 (76) 73 (77)    
Recent stressful life event       n.s.
  0 73 (32) 22 (23)    
  1 80 (36) 42 (44)    
  > 2 47 (21) 20 (21)    
Education       
  Compulsory education 53 (24) 25 (26)    n.s.
  High school education and over 150 (67) 57 (60)    
Previous deliberate self harm       n.s.
  0 145 (64) 39 (41)    
  1 18 (8) 7 (7)    
  > 2 50 (22) 40 (42)    
Previous suicide attempt       n.s.
  0 121 (54) 47 (49)    
  1 51 (23) 16 (17)    
  > 2 38 (17) 25 (26)    
Family history of suicide/attempt   34 (15) 10 (11)    n.s.
Axis I       n.s.
Mood disorders   58 (26) 20 (21)    
Adjustment disorders   33 (15) 24 (25)    
Schizophrenia and other psychotic disorders   43 (19) 11 (12)    
Substance-related disorders   29 (13) 7 (7)    
Axis II       n.s.
Personality disorders   71 (32) 39 (41)    
  1. §Mann-Whitney U test