Table 1. Examples of common disorders and their heritability.

Multifactorial disease	Heritability
Age-related maculopathy	0.45
Age-related macular degeneration	0.46–0.71
Crohn disease	1.0
Prostate cancer	0.42
Breast cancer	0.27
Type 2 diabetes	0.26
Obesity	0.40–0.54
Coronary artery disease (CAD)	0.49
Death from CAD	0.57a
	0.38b
Hypertension	0.80

^aMales.

^bFemales.

Source: Modified from Lango and Weedon.³⁶ Adapted by permission from John Wiley & Sons, Inc. Copyright © 2008 (http://onlinelibrary.wiley.com/journal/ 10.1111/(ISSN)1365-2796).