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. Author manuscript; available in PMC: 2024 Feb 15.
Published in final edited form as: Dev Psychopathol. 2022 Aug 15;34(5):1781–1802. doi: 10.1017/S0954579422000724

Appendix 7.

Number of individuals and twin pairs predictor and outcome discordant in the multiply imputed and complete case dataset.

Outcome discordant # Individuals (# twin pairs)

Multiply imputed dataset

Alcohol use cutoff (AUDIT) Any drug use (DUDIT) Any cigarette use Any snuff use Suicide attempt/self-harm

Parent-reported sports participation 10,174 (5,087) 8,902 (4,451) 12,474 (6,237) 11,428 (5,714) 10,984 (5,492)
Twin-reported physical activity 10,940 (5,470) 9,532 (4,766) 13,572 (6,786) 12,356 (6,178) 11,966 (5,983)
Twin-reported positive friendship quality 11,896 (5,948) 10,246 (5,123) 15,020 (7,510) 13,570 (6,785) 13,042 (6,521)
Complete case dataset

Parent-reported sports participation 492 (246) 206 (103) 1,096 (548) 784 (392) 696 (348)
Twin-reported physical activity 600 (300) 232 (116) 1,396 (698) 980 (490) 918 (459)
Twin-reported positive friendship quality 760 (380) 298 (149) 1,786 (893) 1,236 (618) 1,120 (560)