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Table 4 Multiple regression analysis with GAF-F at one year follow-up as dependent variable

From: Continued cannabis use at one year follow up is associated with elevated mood and lower global functioning in bipolar I disorder

 

Block model summary for each step

Contribution of separate variables for last step

Block no. variable

R2 change

F change

Beta

t

P Value

95% CI of B

      

Lower

Upper

Constant

 

4.432

.000

22.543

59.633

1

.095

6.270

     

GAF-F (Baseline)

  

.308

2.504

.015

.087

.779

2

.024

.780

     

Sex

  

-.158

−1.247

.217

−13.794

3.202

Age

  

-.020

-.162

.872

-.461

.392

3

.028

1.895

     

Premorbid childhood academic functioning

 

-.178

−1.377

.174

5.997

1.110

Model A

       

4

.119

9.052

     

Continued use of cannabis

  

-.363

−3.009

.004

−33.745

−6.770

Model B

       

4

.277

26.934

     

YMRS (at 1 yr)

  

-.565

-.5190

.000

−2.991

−1.325

5

.032

3.224

     

Continued use of cannabis

  

-.200

−1.796

.078

−23.582

1.293

  1. Total model: A F 4.047 p = .003. Adj r2 .200.
  2. Total model: B F 7.675 p = .000. Adj r2 .456.