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Table 3 Summary of imputation results for self-report abstinence assuming different levels of association between the survey missing status and self-report abstinence

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

 

Counseling vs. no counseling

Multiple vs. single contests

OR 1

Counseling Tx2 + Tx4

No counseling Tx1 + Tx3

Estimated treatment effect (odds ratio for abstinence)

P-value

Multiple contests

Tx3 + Tx4

Single contest

Tx1 + Tx2

Estimated treatment effect (odds ratio for abstinence)

P-value

Complete case only

29.7%

24.4%

1.31

.058

28.4%

25.4%

1.16

.291

 1

29.8%

24.4%

1.31

.034

28.6%

25.4%

1.18

.212

 2

27.0%

22.7%

1.26

.086

26.2%

23.4%

1.16

.251

 3

25.8%

22.0%

1.23

.125

25.2%

22.5%

1.16

.275

 4

25.1%

21.7%

1.21

.154

24.7%

22.1%

1.15

.290

 5

24.7%

21.5%

1.20

.175

24.3%

21.8%

1.15

.301

 ⁞

        

 +∞

22.9%

20.5%

1.15

.303

22.8%

20.6%

1.14

.359

  1. OR1: odds ratio between missing and tobacco use status for self-report data, where OR1 = 1 corresponds to the situation when missing is independent of tobacco use and OR1 = positive infinity (+∞) corresponds to the situation when missing = smoking; Tx1: single contest + no counseling; Tx2: single contest + counseling; Tx3: multiple contests + no counseling; Tx4: multiple contest + counseling. P-values are based on the Chi-square test