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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%)