Table 4. Heritability estimates for the multivariate trait derived by the proposed method and all individual quantitative features in the data.

Traits	heritability	p-value	standard deviation
Trait derived by proposed method	0.70	4.36 × 10−22	0.06
Cocaine symptom count	0.41	1.52 × 10−08	0.07
Age when first used cocaine	0.39	2.41 × 10−09	0.07
Age when last used cocaine	0.35	6.70 × 10−06	0.10
Age when first CD diagnosis	0.43	1.15 × 10−10	0.07
Age when last CD diagnosis	0.38	5.99 × 10−09	0.07
Transition time between first cocaine use and CD diagnosis	0.42	8.09 × 10−10	0.07