| sexual transmission of hepatitis c virus: cohort study (1981-9) among european homosexual men. | to determine the prevalence, incidence, and persistence of positivity for antibodies to hepatitis c virus (anti-hcv) and the potential for sexual transmission of the virus. | 1990 | 2118402 |
| effect of knowledge of human immunodeficiency virus infection status on sexual activity among homosexual men. | one hundred thirty-four homosexual men from a prospective cohort study of aids risk from new york city and washington d.c. and 139 homosexual men from a similar cohort in copenhagen and aarhus, denmark were questioned regarding their sexual practices and knowledge of their human immunodeficiency virus (hiv) status over the previous 12 months. seventy percent of danish men and 63% of u.s. men participated in anal intercourse during the previous 12 months. knowledge of one's own hiv status by itse ... | 1990 | 2293644 |
| incidence and characteristics of sexually transmitted acute hepatitis c virus infection among hiv-positive men who have sex with men in copenhagen, denmark during four years (2006-2009): a retrospective cohort study. | we determined the incidence of hepatitis c virus among danish human immunodeficiency virus (hiv)-positive men who have sex with men (msm) and described their characteristics. we included 871 hiv-positive msm seen from 1 january 2006 to 31 december 2009 at rigshospitalet in copenhagen; drug users were excluded. we found 13 incident infections, i.e. a yearly incidence of 0.4%. | 2010 | 20923257 |