Introduction
Methods
Research design and subjects
Statistical analyses
Results
Socio-demographic characteristics of psychiatric inpatients
America (N = 905) | China (N = 1318) | t/χ2 | P | |
---|---|---|---|---|
Age (years, \(\overline{x}\) ±s) | 39.7 ± 13.7 | 40.3 ± 18.6 | 0.906 | 0.365 |
Gender, n (%) | 78.772 | <0.001 | ||
Male | 562 (62.1%) | 566 (42.9%) | ||
Female | 343 (37.9%) | 752 (57.1%) | ||
Marital status, n (%) | 498.645 | <0.001 | ||
Unmarried | 694 (76.7%) | 463 (35.1%) | ||
Married | 112 (12.4%) | 779 (59.1%) | ||
Divorce | 79 (8.7%) | 44 (3.3%) | ||
Widowed | 20 (2.2%) | 32 (2.4%) | ||
Education, n (%) | 429.311 | <0.001 | ||
Primary school and below | 7 (0.8%) | 238 (18.1%) | ||
Junior middle school | 36 (4.0%) | 355 (26.9%) | ||
High school | 514 (56.8%) | 453 (34.4%) | ||
Junior college or undergraduate | 348 (38.5%) | 272 (20.6%) | ||
Occupation, n (%) | 1276.030 | <0.001 | ||
Workers | 106 (11.7%) | 227 (17.2%) | ||
Freelance worker | 5 (0.6%) | 496 (37.6%) | ||
Students | 10 (1.1%) | 181 (13.7%) | ||
Retiree | 20 (2.2%) | 267 (20.3%) | ||
The unemployed | 764 (84.4%) | 147 (11.2%) | ||
Living condition, n (%) | 423.615 | <0.001 | ||
Living alone | 265 (29.3%) | 4 (0.3%) | ||
Groups life | 640 (70.7%) | 1314 (99.7%) |
Clinical characteristics of psychiatric inpatients
America (N = 905) | China (N = 1318) | t/χ2 | P | |
---|---|---|---|---|
Reasons for admission, n (%) | 622.279 | <0.001 | ||
Positive symptoms | 406 (44.9%) | 610 (46.3%) | ||
Negative symptoms | 6 (0.7%) | 67 (5.1%) | ||
Depression and anxiety | 43 (4.8%) | 379 (28.8%) | ||
Suicide and self-injury | 417 (46.1%) | 92 (7.0%) | ||
Physical symptoms | 18 (2.0%) | 157 (11.9%) | ||
Substance abuse | 9 (1.0%) | 8 (0.6%) | ||
Drug side effects | 6 (0.7%) | 5 (0.4%) | ||
Whether or not to be admitted voluntarily, n (%) | 764.821 | <0.001 | ||
Yes | 53 (5.9%) | 850 (64.5%) | ||
No | 852 (94.1%) | 468 (35.5%) | ||
Whether restrained or isolated, n (%) | 0.197 | 0.657 | ||
Yes | 124 (13.7%) | 172 (13.1%) | ||
No | 781 (86.3%) | 1146 (86.9%) | ||
Substance abuse, n (%) | 2034.822 | <0.001 | ||
None | 22 (2.4%) | 1293 (98.1%) | ||
Substance abuse | 883 (97.6%) | 25 (1.9%) | ||
Alcohol and Drugs | 491 (54.3%) | 25 (1.9%) | ||
Narcotics | 392 (43.3%) | 0 (0.0%) | ||
Suicidal ideation, n (%) | 2.807 | 0.094 | ||
Yes | 466 (51.5%) | 631 (47.9%) | ||
No | 439 (48.5%) | 687 (52.1%) | ||
Insurance, n (%) | 3.110 | 0.078 | ||
Yes | 892 (98.6%) | 1309 (99.3%) | ||
No | 13 (1.4%) | 9 (0.7%) | ||
Diagnosis, n (%) | 183.445 | <0.001 | ||
Organic mental disorder | 29 (3.2%) | 252 (19.1%) | ||
Mental and behavioral disorders due to psychoactive substance use | 41 (4.5%) | 10 (0.8%) | ||
Schizophrenia Spectrum Disorder | 341 (37.7%) | 454 (34.4%) | ||
Mood disorder | 326 (36.0%) | 345 (26.2%) | ||
Depression | 176 (19.4%) | 199 (15.1%) | ||
Bipolar disorder | 150 (16.6%) | 146 (11.1%) | ||
Neurotic, stress-related and somatoform disorders | 160 (17.7%) | 221 (16.8%) | ||
Behavioral syndrome with physiological disorders and somatic factors | 1 (0.1%) | 16 (1.2%) | ||
Personality and behavioral disorders | 6 (0.7%) | 2 (0.2%) | ||
Intellectual disability | 1 (0.1%) | 7 (0.5%) | ||
Mental development disorder | 0 (0.0%) | 11 (0.8%) | ||
LOS (days, \(\overline{x}\) ±s) | 10.5 ± 11.9 | 20.7 ± 13.4 | 18.719 | <0.001 |
Organic mental disorder | 9.9 ± 18.1 | 20.2 ± 12.3 | 4.023 | <0.001 |
Mental and behavioral disorders due to psychoactive substance use | 7.3 ± 5.4 | 13.9 ± 5.3 | 3.519 | 0.001 |
Schizophrenia Spectrum Disorder | 13.8 ± 13.8 | 22.4 ± 16.0 | 7.983 | <0.001 |
Mood disorders | ||||
Depression | 8.6 ± 8.9 | 19.7 ± 10.1 | 11.251 | <0.001 |
Bipolar disorder | 10.3 ± 8.1 | 23.3 ± 16.0 | 8.842 | <0.001 |
Neurotic, stress-related and somatoform disorders | 6.8 ± 11.9 | 17.1 ± 8.0 | 10.129 | <0.001 |
Behavioral syndrome with physiological disorders and somatic factors | 9.0 ± 0.0 | 17.3 ± 8.7 | 0.926 | 0.369 |
Personality and behavioral disorders | 8.7 ± 5.1 | 13.5 ± 10.6 | 0.932 | 0.387 |
Intellectual disability | 30.0 ± 0.0 | 23.3 ± 5.3 | −1.189 | 0.279 |
Mental development disorder | – | 21.3 ± 16.9 | – | – |
Total dose of antipsychotics (mg, \(\overline{x}\) ±s) | 275.1 ± 306.9 | 238.3 ± 212.5 | −3.129 | 0.002 |
Organic mental disorder | 133.0 ± 152.1 | 155.6 ± 135.1 | 0.840 | 0.402 |
Mental and behavioral disorders due to psychoactive substance use | 153.2 ± 191.7 | 261.0 ± 228.5 | 1.537 | 0.131 |
Schizophrenia Spectrum Disorder | 447.2 ± 329.0 | 386.2 ± 216.3 | −2.973 | 0.003 |
Mood disorder | ||||
Depression | 77.0 ± 124.5 | 117.7 ± 108.7 | 3.383 | <0.001 |
Bipolar disorder | 364.8 ± 296.0 | 280.2 ± 212.9 | −2.831 | 0.005 |
Neurotic, stress-related and somatoform disorders | 99.0 ± 189.2 | 118.8 ± 156.1 | 1.118 | 0.264 |
Behavioral syndrome with physiological disorders and somatic factors | 420.0 ± 0.0 | 120.1 ± 109.2 | −2.665 | 0.018 |
Personality and behavioral disorders | 222.5 ± 240.1 | 300.0 ± 424.3 | 0.340 | 0.746 |
Intellectual disability | 510.0 ± 0.0 | 285.7 ± 163.2 | −1.285 | 0.246 |
Mental development disorder | – | 169.6 ± 139.4 | – | – |
Factors affecting LOS
Variables | Univariable linear regression | Multivariable linear regression | ||||||
---|---|---|---|---|---|---|---|---|
β | Cl(95%) | P | β | Cl(95%) | p | |||
Lower bound | Upper bound | Lower bound | Upper bound | |||||
Age | 0.143 | 0.087 | 0.199 | <0.001 | 0.144 | 0.082 | 0.205 | <0.001 |
aGender | −2.945 | −4.536 | −1.354 | <0.001 | −2.078 | −3.635 | −0.521 | 0.009 |
bMarital status | ||||||||
Unmarried | 2.503 | 0.124 | 4.881 | 0.039 | 1.656 | −0.670 | 3.982 | 0.163 |
Divorce | 2.321 | −1.111 | 5.753 | 0.185 | 1.201 | −1.993 | 4.396 | 0.461 |
Widowed | 1.575 | −4.095 | 7.245 | 0.586 | −1.018 | −6.322 | 4.287 | 0.707 |
cEducation | ||||||||
Junior middle school | 4.056 | −5.578 | 13.689 | 0.409 | ||||
High school | 3.325 | −5.550 | 12.199 | 0.462 | ||||
Junior college or undergraduate | 1.253 | −7.650 | 10.156 | 0.782 | ||||
dOccupation | ||||||||
Workers | −14.471 | −20.097 | −8.844 | <0.001 | −10.596 | −16.171 | −5.021 | <0.001 |
Freelance worker | −17.250 | − 28.789 | − 5.711 | <0.003 | − 11.526 | − 22.429 | −0.622 | 0.038 |
Students | −15.750 | − 24.688 | −6.812 | 0.001 | − 10.967 | −19.761 | − 2.173 | 0.015 |
The unemployed | −12.028 | −17.256 | −6.801 | <0.001 | −9.761 | −14.956 | −4.566 | <0.001 |
eLiving condition | ||||||||
Groups life | 0.901 | −0.807 | 2.608 | 0.301 | ||||
fSubstance abuse | ||||||||
Yes | −5.139 | −10.176 | −0.102 | 0.046 | ||||
gSuicidal ideation | ||||||||
Yes | 4.001 | 2.467 | 5.534 | <0.001 | −0.434 | −3.493 | 2.626 | 0.781 |
hInsurance | ||||||||
Yes | 6.471 | −0.050 | 12.991 | 0.052 | ||||
iWhether or not to be admitted voluntarily | ||||||||
Yes | −1.206 | −4.516 | 2.104 | 0.475 | ||||
jWhether restrained or isolated | ||||||||
Yes | 3.524 | 1.275 | 5.773 | <0.002 | 0.379 | −1.958 | 2.716 | 0.751 |
kReasons for hospitalization | ||||||||
Negative symptoms | 2.584 | −6.805 | 11.972 | 0.589 | 5.493 | −3.439 | 14.425 | 0.228 |
Depression and anxiety | −1.649 | −5.310 | 2.012 | 0.377 | 1.466 | −2.194 | 5.125 | 0.432 |
Suicide and self-injury | −4.138 | −5.730 | −2.546 | <0.001 | −0.609 | −3.858 | 2.639 | 0.713 |
Physical symptoms | 10.195 | 4.696 | 15.694 | <0.001 | 9.720 | 4.515 | 14.926 | <0.001 |
Substance abuse | −7.750 | −15.443 | −0.056 | 0.048 | −4.810 | − 12.410 | 2.790 | 0.215 |
Drug side effects | −6.416 | −15.805 | 2.972 | 0.180 | −4.936 | −13.946 | 4.074 | 0.283 |
lDiagnosis | ||||||||
Organic mental disorder | −3.878 | −8.287 | 0.531 | 0.085 | 0.108 | −4.311 | 4.528 | 0.962 |
Psychoactive substance | −6.541 | −10.309 | −2.773 | 0.001 | −2.659 | −6.352 | 1.034 | 0.158 |
Mood disorder | ||||||||
Depression | −5.241 | −7.357 | −3.126 | <0.001 | −1.070 | −3.636 | 1.496 | 0.413 |
Bipolar disorder | −3.523 | −5.756 | −1.289 | 0.002 | −1.696 | −3.883 | 0.492 | 0.129 |
Neurotic, stress-related and somatoform disorders | −6.972 | −9.156 | −4.788 | <0.001 | −2.627 | −5.205 | −0.048 | 0.046 |
Behavioral syndrome with physiological disorders and somatic factors | −4.809 | −27.637 | 18.018 | 0.679 | −1.416 | −23.230 | 20.398 | 0.899 |
Personality and behavioral disorders | −5.143 | −14.530 | 4.245 | 0.283 | −0.069 | −9.122 | 8.983 | 0.988 |
Intellectual disability | 16.191 | −6.637 | 39.018 | 0.164 | 12.694 | −8.841 | 34.228 | 0.248 |
Mental development disorder | – | |||||||
Total dose of antipsychotics | 0.012 | 0.009 | 0.014 | <0.001 | 0.010 | 0.007 | 0.013 | <0.001 |
Variables | Univariable linear regression | Multivariable linear regression | ||||||
---|---|---|---|---|---|---|---|---|
β | Cl(95%) | P | β | Cl(95%) | p | |||
Lower bound | Upper bound | Lower bound | Upper bound | |||||
Age | −0.006 | − 0.045 | 0.033 | 0.750 | ||||
aGender | −1.066 | −2.527 | 0.395 | 0.152 | ||||
bMarital status | ||||||||
Unmarried | 1.533 | 0.002 | 3.063 | 0.050 | 1.248 | −0.428 | 2.924 | 0.144 |
Divorce | 9.052 | 5.010 | 13.094 | <0.001 | 7.209 | 3.352 | 11.067 | <0.001 |
Widowed | −0.616 | −5.320 | 4.089 | 0.797 | −2.154 | −6.611 | 2.303 | 0.343 |
cEducation | ||||||||
Junior middle school | 1.634 | −0.567 | 3.835 | 0.145 | ||||
High school | 1.537 | −0.566 | 3.640 | 0.152 | ||||
Junior college or undergraduate | 0.745 | −1.586 | 3.077 | 0.531 | ||||
dOccupation | ||||||||
Workers | 1.589 | −0.783 | 3.961 | 0.189 | ||||
Freelance worker | −0.125 | −2.119 | 1.870 | 0.902 | ||||
Students | 0.367 | −2.163 | 2.897 | 0.776 | ||||
The unemployed | 0.580 | −2.119 | 3.278 | 0.674 | ||||
eLiving condition | ||||||||
Groups life | 2.167 | −10.990 | 15.324 | 0.747 | ||||
fSubstance abuse | ||||||||
Yes | −5.443 | −10.741 | −0.146 | 0.044 | −4.063 | −10.239 | 2.113 | 0.197 |
gSuicidal ideation | ||||||||
Yes | 5.921 | 4.508 | 7.334 | <0.001 | 3.801 | 1.926 | 5.676 | <0.001 |
hInsurance | ||||||||
Yes | 5.363 | 0.231 | −3.420 | 0.231 | ||||
iWhether or not to be admitted voluntarily | ||||||||
Yes | −7.193 | −8.655 | −5.732 | <0.001 | −4.759 | −6.765 | −2.753 | <0.001 |
jWhether restrained or isolated | ||||||||
Yes | 1.454 | −0.693 | 3.601 | 0.184 | ||||
kReasons for hospitalization | ||||||||
Negative symptoms | −4.583 | −7.943 | −1.222 | 0.008 | −1.744 | −4.948 | 1.460 | 0.286 |
Depression and anxiety | −1.102 | −2.810 | 0.606 | 0.206 | 2.653 | 0.396 | 4.911 | 0.021 |
Suicide and self-injury | −4.126 | −7.046 | −1.206 | 0.006 | 1.441 | −1.901 | 4.783 | 0.398 |
Physical symptoms | −3.221 | −5.558 | −0.885 | 0.007 | 4.323 | 1.382 | 7.265 | 0.004 |
Substance abuse | −10.941 | −20.232 | −1.650 | 0.021 | −1.916 | − 13.965 | 10.133 | 0.755 |
Drug side effects | 1.859 | −9.865 | 13.583 | 0.756 | 0.549 | −10.469 | 11.568 | 0.922 |
lDiagnosis | ||||||||
Organic mental disorder | −2.258 | −4.301 | − 0.216 | 0.030 | −2.619 | −5.150 | −0.087 | 0.043 |
Psychoactive substance | −8.545 | −16.858 | −0.232 | 0.044 | −0.289 | −11.717 | 11.140 | 0.960 |
Mood disorder | ||||||||
Depression | −2.756 | −4.967 | −0.546 | 0.015 | −2.737 | −5.668 | 0.193 | 0.067 |
Bipolar disorder | 0.891 | −1.583 | 3.365 | 0.480 | −0.790 | −3.320 | 1.741 | 0.541 |
Neurotic, stress-related and somatoform disorders | −5.305 | −7.438 | − 3.172 | <0.001 | −3.032 | − 5.819 | − 0.244 | 0.033 |
Behavioral syndrome with physiological disorders and somatic factors | −5.132 | −11.747 | 1.482 | 0.128 | −3.973 | −10.817 | 2.871 | 0.255 |
Personality and behavioral disorders | −8.945 | −27.373 | 9.483 | 0.341 | −4.602 | − 22.010 | 12.806 | 0.604 |
Intellectual disability | 0.841 | −9.063 | 10.745 | 0.868 | 2.011 | −7.350 | 11.372 | 0.674 |
Mental development disorder | −1.172 | −9.107 | 6.763 | 0.772 | −1.244 | −8.837 | 6.349 | 0.748 |
Total dose of antipsychotics | 0.013 | 0.010 | 0.017 | <0.001 | 0.014 | 0.010 | 0.018 | <0.001 |