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Table 4 Associations between baseline covariates and missing data for the cannabis use. Associations are presented separately for missing data due to not participating in a given follow-up, or due to not completing individual questions at the 36-month follow-up despite participating in the follow-up

From: Universal cannabis outcomes from the Climate and Preventure (CAP) study: a cluster randomised controlled trial

Baseline covariate

Follow-ups completed

χ2(1)

p

 

Completed at least one

Baseline only

  

Using cannabis at baseline

94 / 1624 (5.8%)

8 / 57 (12.3%)

3.60

0.058

Sex: male

822 / 1642 (50.1%)

42 / 68 (61.8%)

3.13

0.077

Drinking at baseline

219 / 1640 (13.4%)

15 / 68 (22.1%)

3.48

0.062

Smoking at baseline

117 / 1614 (7.2%)

11 / 64 (17.2%)

7.28

0.007

 

Completed question

Did not complete

χ2(1)

p

Using cannabis at baseline

59 / 1144 (5.2%)

10 / 108 (9.3%)

2.45

0.118

Sex: male

533 / 1151 (46.3%)

96 / 109 (88.1%)

67.8

< 0.001

Drinking at baseline

136 / 1152 (11.8%)

21 / 109 (19.3%)

4.42

0.036

Smoking at baseline

62 / 1138 (5.4%)

9 / 108 (8.3%)

1.04

0.308