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Table 1 Two-by-two table of tobacco use status by missing for self-report data

From: Analysis of self-report and biochemically verified tobacco abstinence outcomes with missing data: a sensitivity analysis using two-stage imputation

 

Self-report tobacco use status

 

Missing status of self-report data

Abstinence

Failure

Total

Observed

n 11

n 12

n 1.

Missing

n 21

n 22

n 2.

Total

n .1

n .2

n

  1. Bolded entries indicate values that are not observable