. Author manuscript; available in PMC: 2010 Jan 6.

Published in final edited form as: J R Stat Soc Series B Stat Methodol. 2008 Feb 1;70(1):73–93. doi: 10.1111/j.1467-9868.2007.00628.x

Table 1.

Ecological and case-control data with a binary exposure in a generic area; Y is a disease indicator and X a binary exposure. In an ecological study N₁₀ and N₁₁ are unobserved.

	Ecological				Case-control
	Y = 0	Y = 1			Y = 0	Y = 1
X = 0		N₁₀	N₀	X = 0
X = 1		N₁₁	M₁	X = 1	n₀₁	n₁₁
	N₀	N₁	N		n₀	n₁	n