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. 2023 Mar 17;35:100734. doi: 10.1016/j.lanwpc.2023.100734

Table 1.

Summary of derivation of analytical sample including missing observations on each outcome.

Mental health component score (SF-36) Asthma Chronic bronchitis Hypertension Heart disease Depression
Eligible sample (individuals/obs) 32,729/288,073 22,378/48,371 22,378/48,371 22,378/48,371 22,378/48,371 22,378/48,371
Objective 1
Missing observations Exposure:37,203 Exposure:6817 Exposure:6817 Exposure:6817 Exposure:6817 Exposure:6817
Outcome:30,440 Outcome:30 Outcome:30 Outcome:30 Outcome:30 Outcome:30
Covariate:9115 Covariate:1785 Covariate:1785 Covariate:1785 Covariate:1785 Covariate:1785
Total excluded missing observations 45,024 8139 8139 8139 8139 8139
No change in outcome (therefore dropped from logistic fixed effect models) (individuals/obs) n.a. 18,886/37,291 19,674/39,330 18,357/35,808 19,367/38,502 18,103/35,272
Analytical sample (individuals/obs) 30,457/243,049 1135/2941 347/902 1664/4424 654/1730 1918/4960
Objective 2
Missing observations Exposure:85,260 Exposure:13,075 Exposure:13,075 Exposure:13,075 Exposure:13,075 Exposure:13,075
Outcome:30,440 Outcome:30 Outcome:30 Outcome:30 Outcome:30 Outcome:30
Covariates:9115 Covariates:1785 Covariates:1785 Covariates:1785 Covariates:1785 Covariates:1785
Total excluded missing observations 91,064 14,155 14,155 14,155 14,155 14,155
Analytical sample (individuals/obs) 24,517/197,009 17,539/34,216 17,539/34,216 17,539/34,216 17,539/34,216 17,539/34,216

Note: Missing observations on exposure, outcome, and covariates overlap. The total excluded missing obs is the union of the three sets (not the sum). Missing observations refers to cases where data were not recorded for an item. Exposure refers to a measure of energy poverty. Outcome refers to a measure of health. Covariates are the variables used to adjust the analyses for confounding.