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. 2013 Dec 5;9:45. doi: 10.1186/1744-9081-9-45

Table 1.

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

 
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)  

a, t-test; b, X2 test; c, Others include cystitis, fracture, rheumatoid arthritis, blind, pneumothorax, and pulmonary tuberculosis.