Table 1. Study population.

	Cases	Controls
Region
Germany	39	2,282
Greece	23	175
Northern Italy	88	595
Central Italy	146	549
Southern Italy	11	500
Poland	13	335
Total	320	4,436
Sex
Male	162	2,305
Female	156	2,071
Median age	58	58
(interquartile range)	(48–66)	(47–64)