Table 3 Standard multiple linear regression: Individual predictors of hospital stay for schizophrenia and bipolar patients

(Constant)

4.189

4.015

1.043

0.298

−3.73

12.108

Gender

5.824

1.482

0.258

3.930

0.001

2.900

8.747

On occupation or not during 6 months prior to hospitalization

4.702

1.485

0.191

3.166

0.002

1.773

7.631

Substance misuse prior to hospitalization

−14.665

3.209

−0.600

−4.57

0.001

−20.995

−8.335

The psychiatric comorbid status

16.956

3.414

0.687

4.966

0.001

10.222

23.691

Age of onset of mental disorder

−0.314

0.058

−0.350

−5.418

0.001

−0.429

−0.200

BPRS

0.234

0.048

0.291

4.928

0.001

0.140

0.328

One ref vs. no ref

3.136

1.476

0.127

2.125

0.035

0.225

6.047

Three ref vs. no ref

17.343

2.404

0.444

7.215

0.01

12.601

22.085

Model for bipolar patients

B

Std. error

Beta

Lower bound

Upper bound

(Constant)

17.295

1.303

13.275

0.001

14.727

19.862

Two ref vs. no ref

7.457

1.823

0.262

4.090

0.001

3.864

11.049

Single vs. married or divorced*

1.827

0.607

0.190

3.011

0.003

0.631

3.022

Distance from hospital**

−3.239

1.354

−0.151

−2.393

0.018

−5.907

−0.571

Three ref vs. no ref

6.721

2.961

0.142

2.27

0.024

0.886

12.557