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Table 1 Assumptions for the missingness mechanisms in a two-arm study

From: How robust are findings of pairwise and network meta-analysis in the presence of missing participant outcome data?

Assumption

IMDoM values

IMOR values

Active arm

Control arm

Active arm

Control arm

1

− 2

− 2

1/3

1/3

2

− 2

− 1

1/3

1/2

…

…

…

…

…

5

− 2

2

1/3

3

…

…

…

…

…

13 (MAR)

0

0

1

1

…

…

…

…

…

21

2

− 2

3

1/3

…

…

…

…

…

24

2

1

3

2

25

2

2

3

3

  1. IMDoM informative missingness difference of means, IMOR informative missingness odds ratio