Table 5

Risk factors for the development of new marijuana problems at wave two

New (Wave two) Marijuana Problems

df

Wald

sig

Risk

95% CI


Age groups

(20-24)

40-44

1

4.685

.030

0.449

.218 - .927

60-64

1

10.475

.001

0.033

.004 - .261

Gender

(female)

1

12.967

<.001

2.507

1.520 - 4.136

Marital status W1

(married/de facto)

Separated/divorced/widowed

1

<.001

.996

1.003

.284 - 3.542

Never married

1

7.387

.007

2.543

1.297 - 4.986

Depression medication W1

(no)

1

.345

.557

1.413

.446 - 4.475

Anxiety medication W1

(no)

1

.749

.387

1.573

.564 - 4.386

Pain medication W1

(no)

1

2.106

.147

.698

.430 - 1.134

Memory medication W1

(no)

1

<.001

.995

.000

.000 -a

Sleep medication W1

(no)

1

.081

.776

1.121

.510 - 2.467

Smoker W1

(no)

1

52.322

<.001

5.603

3.513 - 8.938

BI (W1-W2)

(no)

1

1.996

.158

2.046

.758 - 5.521

Marijuana problems W1

(no)

1

NiM

NiM

NiM

NiM

Alcohol problems W1

(no)

1

.116

.734

.859

.356 - 2.069


Items in parenthesis show the reference category: a No cases used memory medication and developed marijuana problems

W1 = wave one: BI (W1-W2) = brain injury (incident case e.g. first occurrence) between Wave one and wave two: NiM = not in model

Tait et al. BMC Public Health 2010 10:171   doi:10.1186/1471-2458-10-171

Open Data