TABLE 2.

Comparison of 4 epidemiologic cohort studies of vegetarians¹

	Adventist Health Study–2	EPIC-Oxford Study	Tzu Chi Health Study	Indian Migration Study
Recruitment period	2001–2007	1993–1999	2005–2007	2005–2007
Country	United States and Canada	United Kingdom	Taiwan	India
Participants, n	96,469	65,000	6002	6555
Female, %	65	78	63	42
Vegetarians, %	36	33	30	33
Smokers, %
Vegetarian	∼0.1	∼10	0.03	7.5
Nonvegetarian	∼2	∼12	4.47	11.8
Alcohol consumers, %
Vegetarian	∼2	∼79	0.25	5.7
Nonvegetarian	∼10	∼85	6.33	21.3

¹EPIC-Oxford, European Prospective Investigation into Cancer and Nutrition–Oxford.