Skip to main content

Table 1 Characteristics of schizophrenia, bipolar affective disorder, and major depressive disorder patients who died by suicide and those who did not

From: No association between serum cholesterol and death by suicide in patients with schizophrenia, bipolar affective disorder, or major depressive disorder

  Schizophrenia Bipolar affective disorder Major depressive disorder
  Suicide Non-suicide p-value Suicide Non-suicide p-value Suicide Non-suicide p-value
  N = 82 N = 164   N = 23 N = 46   N = 67 N = 134  
Age at laboratory tests (years), mean ± SD 31.1 ± 9.1 31.5 ± 8.6 0.699a 36.5 ± 11.6 35.9 ± 10.0 0.830a 52.6 ± 15.2 54.1 ± 15.2 0.519a
Age at first admission (years) 29.1 ± 9.3 29.3 ± 8.9 0.859a 34.0 ± 11.6 32.7 ± 10.4 0.620a 51.6 ± 15.1 53.2 ± 14.8 0.494a
Number of admissions, mean ± SD 2.2 ± 2.3 2.4 ± 2.5 0.638a 2.5 ± 1.8 2.5 ± 2.1 >0.99a 1.6 ± 1.3 1.6 ± 1.0 0.895a
Body mass index (kg/m2), mean ± SD 22.1 ± 3.7 23.1 ± 4.1 0.086a 23.8 ± 3.6 23.9 ± 3.0 0.93a 22.8 ± 3.2 22.9 ± 3.5 0.894a
Sex, male, n (%) 42(51) 80(49) 0.787b 14(61) 29(63) >0.99b 30(45) 56(42) 0.763b
Socio-economic status, n (%)    0.479b    0.457b    0.259b
High 19(27) 33(21)   3(14) 12(27)   13(24) 39(31)  
Middle 32(45) 84(53)   12(55) 22(50)   28(51) 66(53)  
Low 20(28) 41(26)   7(32) 10(23)   14(25) 20(16)  
Use of atypical antipsychotics, n (%) 16 (19.5) 43 (26.2) 0.245b 4 (17.4) 11 (23.9) 0.536b 4 (6.0) 7 (5.2) 0.826b
Comorbid medical disease          
None 75(91.5) 155(94.5) 0.361b 17(73.9) 40(87.0) 0.178b 47(70.1) 81(60.4) 0.178b
Endocrine disease 2(2.4) 1 (0.6)   0 0   4(6.0) 13(9.7)  
Cardiovascular disease 0 1(0.6)   2(8.7) 2(3.3)   12(17.9) 22(16.4)  
Liver disease 0 3(1.8)   1(4.3) 0   0 3(2.2)  
Neurological disease 3(3.7) 1(0.6)   2(8.7) 1(2.2)   3(4.5) 3(2.2)  
Cancer 0 0   0 0   0 3(2.2)  
Othersc 2(2.4) 3(1.8)   1(4.3) 3(6.5)   1(1.5) 9(6.7)  
  1. a, t-test; b, X2 test; c, Others include cystitis, fracture, rheumatoid arthritis, blind, pneumothorax, and pulmonary tuberculosis.