Table 2.

The heritability and other parameters estimated from A (D or C) E model for hair color (N = 20,142 individuals).

Classification	M	Am	Dm/Cm	Em	Af	Df/Cf	Ef	h2m	h2f
Blond (ADE)	0.210	0.39	0.57	0.04	0.73	0.24	0.03	0.96	0.97
Brown (ADE)	0.143	0.22	0.71	0.07	0.68	0.29	0.03	0.93	0.97
Red (ACE)	0.704	0.73	0.26	0.01	0.73	0.26	0.01	0.73	0.73
Black (AE)	0	0.96		0.04	0.96		0.04	0.96	0.96
Light versus dark (ADE)	0.208	0.42	0.54	0.04	0.75	0.22	0.03	0.96	0.97

M: phenotypic assortative mating coefficient (as estimated in the model); Am, Af = total additive variance in males and females; Dm, Df = total non-additive variance in males and females (blond, brown and light versus dark); Em, Ef = total unique environment variance plus measurement error in males and females; Cm, Cf = shared environment variance in males and females (red and black hair color); h²m = heritability in males, h²f = heritability in females (broad sense h² of blond, brown, and light versus dark; narrow sense h² of red and black).