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Table 1 Percent completing M6 and probability of retention at M3 and M6 by patient baseline characteristics and primary condition in 1011 participants

From: The impact of non-medical cannabis legalization and other exposures on retention in longitudinal cannabis research: a survival analysis of a prospective study of Canadian medical cannabis patients

Patient baseline characteristics Completed M6 (%) Kaplan–Meier estimator
Probability of remaining in study
M3 M6 p
Gender     0.382
  Male 175/432 (40.5) 0.70 0.41  
   Female 244/578 (42.2) 0.74 0.42  
Education     0.299
  High school or lower 178/451 (39.5) 0.71 0.39  
  College or higher 241/560 (43.0) 0.73 0.43  
Marital status     0.272
  Single/divorced/widowed/separated 175/450 (38.9) 0.72 0.39  
  Married/living as married 244/561 (43.5) 0.72 0.43  
Age     0.279
  < 25 5/18 (27.8) 0.78 0.28  
  25–39 102/264 (38.6) 0.69 0.39  
  40–55 141/345 (40.9) 0.70 0.41  
   > 55 171/384 (44.5) 0.75 0.45  
Age     0.107
  < 55 238/602 (39.5) 0.70 0.40  
   ≥ 55 181/409 (44.3) 0.74 0.44  
Used cannabis 5 or more times in the last 12 months     0.459
  No 245/580 (42.2) 0.73 0.42  
  Yes 168/415 (40.5) 0.70 0.40  
Primary medical condition you currently treat with medical cannabis     0.913
  Anxiety disorder 37/98 (37.8) 0.73 0.38  
  Arthritis 27/63 (42.9) 0.75 0.43  
  Cancer/leukemia 8/15 (53.3) 0.73 0.53  
  Chronic pain 298/703 (42.4) 0.72 0.42  
  Crohn’s disease 1/6 (16.7) 0.67 0.17  
  Epilepsy 3/5 (60.0) 0.80 0.60  
  Gastrointestinal disorder 3/6 (50.0) 0.83 0.50  
  Headache 8/23 (34.8) 0.78 0.35  
  Insomnia 20/48 (41.7) 0.65 0.42  
  Movement disorder 2/8 (25.0) 0.63 0.25  
  PTSD 2/8 (25.0) 0.63 0.25  
  Other 8/18 (44.4) 0.78 0.44  
Primary medical condition you currently treat with medical cannabis     0.862
  Pain 333/789 (42.2) 0.72 0.42  
  Mental health issues 40/109 (36.7) 0.73 0.37  
  Insomnia 20/48 (41.7) 0.65 0.42  
  Other 26/64 (40.6) 0.77 0.41  
  1. M3  Month 3 timepoint, M6  Month 6 timepoint