Table 1.
Demographic and clinical characteristics of the matched sample.
| Variables | Suicidal ideation | Suicide plan | Suicide attempt | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No(N = 280) | Yes(N = 280) | Statistics | No(N = 273) | Yes(N = 273) | Statistics | No(N = 275) | Yes(N = 275) | Statistics | |||||||
|
N (%) |
N (%) |
X2 | df | p value |
N (%) |
N (%) |
X2 | df | p value |
N (%) |
N (%) |
X2 | df | p value | |
| Male gender | 95 (33.9) | 95 (33.9) | 0.00 | 1 | 1.00 |
91 (33.3) |
90 (33.0) |
0.01 | 1 | 0.93 |
97 (35.0) |
92 (33.5) |
0.26 | 1 | 0.61 |
| Occupation | 255 (91.1) | 257 (91.8) | 0.09 | 1 | 0.76 |
253 (92.7) |
253 (92.7) |
0.00 | 1 | 1.00 |
254 (91.7) |
254 (92.4) |
0.18 | 1 | 0.67 |
| Urban | 224 (80.0) | 216 (77.1) | 0.68 | 1 | 0.41 |
218 (79.9) |
215 (78.8) |
0.10 | 1 | 0.75 |
221 (79.8) |
215 (78.8) |
0.09 | 1 | 0.77 |
| Medical insurance | 200 (71.4) | 192 (68.6) | 0.54 | 1 | 0.46 |
197 (72.2) |
189 (69.2) |
0.57 | 1 | 0.45 |
201 (72.6) |
191 (69.5) |
0.74 | 1 | 0.39 |
| Unmarried | 152 (54.3) | 150 (53.6) | 0.03 | 1 | 0.87 |
152 (55.7) |
151 (55.3) |
0.01 | 1 | 0.93 |
155 (56.0) |
151 (54.9) |
0.02 | 1 | 0.88 |
| Family history |
72 (25.7) |
69 (24.6) |
0.09 | 1 | 0.77 |
67 (24.5) |
66 (24.2) |
0.01 | 1 | 0.92 |
67 (24.2) |
67 (24.2) |
0.00 | 1 | 1.00 |
| Good health status | 221 (78.9) | 214 (76.4) | 0.51 | 1 | 0.78 |
212 (77.7) |
210 (76.9) | 0.10 | 1 | 0.95 |
215 (77.6) |
211 (76.7) |
0.11 | 1 | 0.95 |
| Poor relationship with friends/family members | 118 (42.1) |
130 (46.4) |
1.04 | 1 | 0.31 |
114 (41.8) |
125 (45.8) | 0.90 | 1 | 0.34 |
118 (42.6) |
126 (45.8) |
0.57 | 1 | 0.45 |
| Irritability personal characteristics | 174 (62.1) |
223 (79.6) |
20.78 | 1 | <0.001 |
167 (61.2) |
216 (79.1) | 21.00 | 1 | <0.001 |
170 (61.4) |
218 (79.3) |
20.70 | 1 | <0.001 |
| Poor family support |
68 (24.3) |
61 (21.8) |
0.49 | 1 | 0.48 |
66 (24.2) |
57 (20.9) |
0.85 | 1 | 0.36 |
69 (24.9) |
58 (21.1) |
1.27 | 1 | 0.26 |
| Stress event |
33 (11.8) |
67 (23.9) |
14.07 | 1 | <0.001 |
34 (12.5) |
63 (23.1) |
10.54 | 1 | 0.001 |
33 (11.9) |
63 (22.9) |
11.89 | 1 | 0.001 |
| Less interpersonal communication | 170 (60.7) | 217 (77.5) | 18.48 | 1 | <0.001 |
166 (60.8) |
213 (78.0) | 19.06 | 1 | <0.001 |
169 (61.0) |
214 (77.8) |
18.75 | 1 | <0.001 |
| Mean (SD) | Mean (SD) | t/z | df | p value | Mean (SD) | Mean (SD) | t/z | df | p value | Mean (SD) | Mean (SD) | t/z | df | p value | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (years) | 35.35 (17.44) | 34.44 (18.83) | −1.44 | –a | 0.15 | 35.70 (17.60) | 34.00 (18.87) | −2.05 | –a | 0.04 |
35.82 (17.58) |
34.12 (18.91) | −2.03 | –a | 0.04 |
| Education background (years) | 13.18 (3.57) | 12.50 (3.79) | 2.18 | 558 | 0.03 | 13.21 (3.65) | 12.42 (3.75) | 2.49 | 544 | 0.01 |
13.19 (3.64) |
12.45 (3.76) |
2.34 | 548 | 0.02 |
| Illness duration (years) | 7.34 (8.68) | 5.73 (7.60) | −2.47 | –a | 0.01 |
7.48 (8.90) |
5.83 (7.66) |
−2.03 | –a | 0.02 |
7.52 (8.97) |
5.79 (7.65) |
−2.37 | –a | 0.02 |
| First episode age (years) | 28.23 (15.15) | 28.69 (17.19) | −0.99 | –a | 0.32 | 28.56 (15.17) | 28.15 (17.09) | −1.76 | –a | 0.08 |
28.63 (15.16) |
28.31 (17.19) |
−1.70 | –a | 0.09 |
| CRP (μg/L) |
0.57 (1.88) |
0.59 (1.34) | −0.37 | –a | 0.71 |
0.58 (1.92) |
0.59 (1.36) | −0.06 | –a | 0.95 |
0.59 (1.93) |
0.59 (1.35) |
−0.20 | –a | 0.84 |
| Cortisone (nmol/L) | 16.06 (8.78) |
15.61 (9.14) |
−0.58 | –a | 0.56 | 16.38 (8.78) | 15.29 (9.27) | −1.48 | –a | 0.14 |
16.25 (8.70) |
15.31 (9.25) |
−1.28 | –a | 0.20 |
| ACTH (pg/ml) | 32.11 (30.19) |
27.81 (25.03) |
−1.17 | –a | 0.24 | 32.81 (30.12) | 27.49 (25.14) | −1.78 | –a | 0.08 | 32.48 (29.82) |
27.61 (25.17) |
−1.66 | –a | 0.10 |
| Testosterone (nmol/L) | 166.20 (210.96) | 146.53 (195.50) | −1.14 | –a | 0.25 | 166.40 (212.83) | 142.91 (193.83) | −1.37 | –a | 0.17 |
170.84 (216.68) |
143.65 (193.39) |
−1.46 | –a | 0.14 |
| HAMD-24 total | 9.06 (7.92) | 23.32 (10.03) | −18.67 | –a | <0.001 |
9.21 (8.29) |
23.10 (9.98) | −14.86 | –a | <0.001 |
9.31 (8.33) |
23.05 (9.96) |
−14.80 | –a | <0.001 |
| HAMA total | 5.13 (6.92) | 12.82 (8.59) | −12.12 | –a | <0.001 |
5.42 (6.87) |
12.55 (8.44) | −11.36 | –a | <0.001 |
5.42 (6.82) |
12.54 (8.41) |
−11.43 | –a | <0.001 |
| BPRS total | 32.13 (11.30) | 31.69 (9.37) | 0.51 | 558 | 0.61 | 32.26 (11.45) | 31.40 (9.31) | 0.97 | 544 | 0.33 |
32.34 (11.25) |
31.40 (9.28) | 1.07 | 548 | 0.29 |
| YMRS |
16.67 (11.78) |
6.96 (7.52) |
−9.75 | –a | <0.001 |
16.51 (11.73) |
6.67 (7.31) |
−9.93 | –a | <0.001 |
16.75 (11.64) |
6.68 (7.31) |
−10.27 | –a | <0.001 |
Bolded value: <0.05.
CRP C-reactive protein, ACTH adreno-cortico-tropic-hormone, HAMD Hamilton Depression Rating Scale, HAMA Hamilton Anxiety Rating Scale, YMRS Young Manic Rating Scale, BPRS The Brief Psychiatric Rating Scale.