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Table 1 Demographic characteristics of suicide cases and living controls

From: The validity of proxy-based data on loneliness in suicide research: a case-control psychological autopsy study in rural China

Variable Suicide cases (n = 242) Living controls (n = 242) χ 2 /t P
Gender   
 Male 135 (55.8) 135 (55.8)   
 Female 107 (44.2) 107 (44.2)   
Age groups    0.913 0.633
 60-69 73 (30.2) 70 (28.9)   
 70-79 100 (41.3) 110 (45.5)   
  ≥ 80 69 (28.5) 62 (25.6)   
Education    1.920 0.383
 Below primary school 111 (45.9) 96 (39.7)   
 Primary school 105 (43.4) 116 (47.9)   
 Above primary school 26 (10.7) 30 (12.4)   
Marital status    19.890 0.000
 Currently married 122 (50.4) 170 (70.2)   
 Non-currently married 120 (49.6) 72 (29.8)   
Employment    8.274 0.016
 Employed 41 (16.9) 61 (25.2)   
 Unemployed 194 (80.2) 167 (69.0)   
 Retired 7 (2.9) 14 (5.8)   
Living alone    10.679 0.002
 Yes 64 (26.4) 35 (14.5)   
 No 178 (73.6) 207 (85.5)   
Being left-behind    4.491 0.046
 Yes 41 (16.9) 25 (10.3)   
 No 201 (83.1) 217 (89.7)   
Depression [mean (SD)] 21.40 (5.95) 9.22 (6.42) 21.654 0.000
QOL [mean (SD)] 15.40 (3.06) 19.50 (3.11) 14.629 0.000
Social support [mean (SD)] 22.88 (5.98) 27.47 (6.82) 7.868 0.000