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Table 3 Association between Narcology Dispensary registration and surrogate consumption among cases and controls

From: Identifying the determinants of premature mortality in Russia: overcoming a methodological challenge

  Cases narcology registration Controls narcology registration
Surrogate consumption No Yes No Yes
No 904 84 1,549 41
Yes 518 199 110 25
Don't know/difficult to answer 36 9 20 5
Chi-square* 111.14 97.78
p value <0.001 <0.001
  1. *chi-squared test for a general association between reported surrogate consumption and registration at the Narcology Dispensary