. Author manuscript; available in PMC: 2023 Apr 7.

Published in final edited form as: Wiley Interdiscip Rev Comput Stat. 2022 Apr 8;15(1):e1581. doi: 10.1002/wics.1581

TABLE 2.

Data missing patterns in the major settings discussed in Sections 3–4. For each variable in each sample, ✔ stands for observed, empty stands for unobserved, and ✔/✘ indicates different settings considered by different papers.

Section	3.1			3.2				3.3			4.1			4.2			4.3
Variable	Y	A	x	Y	A	X ₁	U	Y	A	X	Y	Z	X	Y	Z	A	Y	A	x
S = 1	✔	✔	✔	✔	✔	✔	✔/✘	✔	0	✔	✔	✔		✔	✔		✔	✔
S = 0			✔	✔	✔	✔		✔	1	✔		✔	✔		✔	✔		✔	✔