Letter to the Editor Does sexual function survey in Denmark offer any support for male circumcision having an adverse effect?

In the current issue of International Journal of Epidemiology Frisch et al. extend previous research that showed ‘11 % of sexually active Danish men and women fulfilled rather stringent criteria for having at least one sexual dysfunction’.1 Their new survey exa-mined associations with male circumcision (MC).2 Of 5395 men invited to participate, 48 % accepted, and 1893 uncircumcised and 203 circumcised men were interviewed, as were 40 % of the 5521 female partners invited. The survey involved 12 questions related to sexual activity and function. The findings for uncir-cumcised and circumcised participants were largely similar, there being no difference in age at first inter-course, perceived importance of a good sex life, sexual activity with partner in the past year, frequency o