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Table 4 GEE regression results

From: A smartphone app intervention for adult cannabis users wanting to quit or reduce their use: a pilot evaluation

 

B

SE

Exp(B)

Wald X2

p

Dependent variable: Days used (n = 111/93/75)

 Time

–

–

–

27.512

< .001

 RCQ

–

–

–

8.411

.004

 RCQ x Time

–

–

–

11.593

.003*

 Gender

.064

.0652

1.066

.959

.327

 Reduce vs Quit

.117

.0592

1.124

3.887

.049

 Past attempt

.145

.0906

1.156

2.550

.110

Dependent variable: DTCQ8 (n = 111/93/75)

 Time

–

–

–

3.274

.195

 RCQ

–

–

–

8.543

.003*

 RCQ x Time

–

–

–

.780

.677

 Gender

.115

.3397

.892

.114

.735

 Reduce vs Quit

−.433

.3501

1.541

1.528

.216

 Past attempt

−.392

.3475

1.480

1.272

.259

Dependent variable: SDS score (n = 98a/93/75)

 Time

–

–

–

13.920

.001*

 RCQ

–

–

–

16.034

< .001*

 RCQ x Time

–

–

–

.466

.792

 Gender

−.038

.1246

.962

.095

.758

 Reduce vs Quit

.458

.1097

1.581

17.430

< .001*

 Past attempt

.302

.1293

1.353

5.465

.019

Dependent variable: CPQ score (n = 111/93/75)

 Time

–

–

–

61.172

< .001*

 RCQ

–

–

–

2.824

.093

 RCQ x Time

–

–

–

5.278

.071

 Gender

−.082

.6818

.921

.014

.904

 Reduce vs Quit

1.159

.7092

3.185

2.669

.102

 Past attempt

1.445

.7204

4.240

4.020

.045

  1. asome participants had items of the SDS questionnaire missing at baseline due to a questionnaire error. These participants were omitted from these analyses
  2. * p < .015