Table 1.

Summary of individual studies in INHANCE pooled data v1.1

Study Location	Recruitment period	Cases			Controls1
		Source	Participation rate	Age eligibility	Source	Participation rate
Seattle, WA	1985–1995	Cancer registry	54%, 63%2	18–65	Random digit dialing	63%, 61%2
Tampa, FL	1999–2003	Hospital	98%	≥18	Cancer screening clinic - healthy	90%
Los Angeles, CA	1999–2004	Cancer registry	49%	18–65	Neighborhood	68%
Houston, TX	2001–2006	Hospital	95%	≥18	Hospital visitors	80%
Havana, Buenos Aires, Brazil	2000–2003	Hospital	95%	15–79	Hospital - patients	86%

¹All studies frequency matched controls to cases, minimally on age and sex. Additional frequency matching factors included center (Latin America), ethnicity and neighborhood (Los Angeles study).

²Two response rates are reported because data were collected in two population-based case – control studies, the first from 1985 to 1989 among men and the second from 1990 to 1995 among men and women.