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 |
