Table 2

Data abstracted from studies with passive follow-up of chlamydial and gonocaccal reinfection among men

Author, year(reference)	Population	n	Repeat case definition	% of men with repeat chlamydia (n)	% of men with repeat gonorrhoea (n)	% of men with repeat gonorrhoea/CHLAMYDIA(n)	% of female data (n)
DOB, date of birth; F, female; M, male; NA, not applicable; STD, sexually transmitted disease; STI, sexually transmitted infection.
Gunn et al,2004⁵⁰	Population based; San Diego County, California: people with reported cases of gonorrhoea	6243 M, 4747 F	1/1995–12/2001: ⩾2 gonococcal infections for same name and DOB within 30–365 days time frame and trailing 12-month repeats	NA	5.0 (311/6243)	NA	GONORRHEA: 4.1 (196/4747)
Lee et al,2004⁵¹	STD clinic based; Portsmouth, UK: men and women diagnosed as having chlamydia	214 M, 861 F	9/1999–8/2000: subsequent chlamydia at any visit within a 3-year follow-up period	16.4 (10/61)	NA	NA	CHLAMYDIA: 20.5(46/224)
Mehta et al,2003⁵²	STD clinic based; Baltimore, Maryland: heterosexuals ⩾12 years diagnosed as having gonorrhoea	1717 M, 6610 F	1/1994–10/1998: first incident gonococcal infection at least 3 months after initial visit to a maximum of 4.8 years	NA	11.9 (788/6610)	NA	GONORRHOEA: 7.1 (122/1717)
Rietmeijer et al,2002⁵³	STD clinic based; Denver, Colorado: patients screened for chlamydia more than once	2097 M, 1470 F	1/1997–6/1999: more than one positive chlamydia test >30 days apart	18.3 (56/306)	NA	NA	CHLAMYDIA: 23.2 (43/185)
Gunn et al,2000⁵⁴	STD clinic based; San Diego County, California: patients with a new STD or a history of STD in the past 5 years	2612 M	2–7/1995: subsequent STD reported by a client or communicable disease investigator between 45 and 365 days after treatment	NA	NA	6.3 (39/620)	CHLAMYDIA/GONORRHOEA: 6.3 (15/239)
Thomas et al,2000⁵⁵	STD clinic based; Step County, North Carolina: patients diagnosed as having chlamydia and/or gonorrhoea	626 M, 574 F	8/1992–1/1994: subsequent chlamydial and/or gonococcal infection in clinic or private practice >14 days and <17 months after index infection	NA	NA	28.3 (177/626)	GONORRHOEA/CHLAMYDIA: 19.0 (109/574)