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Table 3 Reasons for missing data about cannabis use

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

Time

Not missing

Did not complete follow-up

Did not complete individual question

Baseline

1689 (98.7%)

0 (0%)

23 (1.3%)

6 months

1249 (73.0%)

358 (20.9%)

105 (6.1%)

12 months

1402 (81.9%)

243 (14.2%)

67 (3.9%)

24 months

1343 (78.4%)

317 (18.5%)

52 (3.1%)

36 months

1152 (67.3%)

451 (26.3%)

109 (6.4%)