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R Mak

Publications and source records attributed to R Mak.

9 recordsLinked to original sources

Demand patterns for HIV-tests in general practice: information collected by sentinel networks in 5 European countries.

This study describes a 1 year international data collection on the demand pattern for HIV-antibody tests in general practice recorded by 6 sentinel networks in 5 European countries. The purpose of the recording was to evaluate the use of HIV-antibody testing by general practitioners and the demand for testing among the general population. Sentinel networks of general practitioners are a possible and available instrument for monitoring the perception of the HIV-test, and indirectly of the threat of the HIV-epidemic by the public and by the general practitioners (GPs). Differences were found between the countries in the frequency of testing, the person asking the test and the reason for testing. Possible explanatory factors, such as differences in the routine testing of specific groups, differences in the training and in the role of the GP, differences in the characteristics of prevention policy, are discussed. The European comparison also offers the opportunity to reflect on common medical practice in dealing with demands for HIV-tests.

AIDS Serodiagnosis

Coming out and AIDS-related high-risk sexual behavior.

How the withdrawal of social support associated with the coming out of gay men influences AIDS-related sexual risk-taking among Flemish (Belgian) gay men is analyzed. Recruited via key persons, the 379 gay men in this nonclinical cohort completed a lengthy, computerized questionnaire dealing with diverse aspects of gay life and culture. Independent variables include demographic characteristics, AIDS knowledge, coming-out histories, six social support dimensions, and personal resources. The dependent variables were insertive and receptive anal intercourse with and without a condom. Stepwise regression explained, respectively, 41.2, 38.4, 18.4, and 14.2% of the variance. Absence of appraisal (the view that others approve of the way one does things or feels about things) led to higher frequencies of insertive anal sex (both with and without a condom). The experience of emotional conflict lowered the use of condoms by the insertive partner in anal intercourse. Disapproval by significant others of being gay also led to higher levels of receptive anal intercourse without a condom. Subjects with a high belief in mastery had higher frequencies of risk-taking, suggesting that the combination of the experience of negative reactions and high mastery lead to greater involvement in risky sexual behavior. Findings are interpreted within the theoretical framework of the coming-out process and gay identity formation.

Acquired Immunodeficiency Syndrome

Thyroxine dosage.

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Depression

Alcohol and risky sex: in search of an elusive connection.

Since the publication of the 1986 article by Stall, McKusick, Wiley, Coates and Ostrow, the conclusion that drinking alcohol prior to or during erotic encounters increases the probability of engaging in high-risk sexual behavior has been widely accepted, despite some contradictory findings from research on this hypothesis. This paper presents the results of tests of the alcohol/risky-sex hypothesis in a cohort of gay men in Flanders, Belgium. Failing to find evidence to support the hypothesis of a general effect of alcohol on sexual risk taking, we argue that previous conclusions on this matter must be viewed with extreme caution, especially in light of the implications that this failure to replicate has for AIDS prevention programs. Cultural, social, and methodological factors that could account for this failure to replicate are discussed in the context of a review of the literature on this hypothesis.

Acquired Immunodeficiency Syndrome

Human immunodeficiency virus (HIV) infection, sexually transmitted diseases and HIV-antibody testing practices in Belgian prostitutes.

From December 1988 to April 1989, 154 female prostitutes in and around Ghent, Belgium, were interviewed about their knowledge, attitudes and practices in relation to the risks for sexually transmitted diseases (STD) and human immunodeficiency virus (HIV) infection in their profession. Thirty four women worked as window prostitutes, 120 picked up their clients in bars, clubs, and saunas. Blood samples were taken from 123 women. One (0.8%) was seropositive for HIV1, 19 (15.4%) had Hepatitis B core antibodies (anti-HBc), eight (6.4%) showed markers of syphilis. None of them were Hepatitis B surface antigen (HBsAg) carriers. Hepatitis C antibodies (anti-HCV) were present in the serum of three women (2.4%). Overall STD seroprevalence was higher in the group of window prostitutes than in the group of club prostitutes. One woman admitted intravenous drug use. Former testing for anti-HIV antibodies had been performed in 102 (66.5%) respondents, of whom 84 (82.3%) were tested in the year preceding the interview. In 74.5% of the cases, these tests were requested by the women themselves. These results suggest that HIV infection is not yet prevalent in non-intravenous drug using prostitutes in Ghent, but that this situation may change considering their higher rates of past STD. Window prostitutes are at higher risk than club prostitutes. Testing for HIV seems to be common practice, mostly at the request of the women themselves. Health education should discourage the notion of testing as an alternative to using condoms.

AIDS Serodiagnosis

Indoor radon exposure and lung cancer in Belgium.

Indoor radon is the most important source of ionising radiation for the general public and is estimated to be a causal factor for lung cancer. Most risk assessment for low doses are based upon extrapolations of the observations among high exposed groups. As the validity of such procedure is still a controversal matter and in order to obtain direct epidemiological evidence, a case-control study about radon and lung cancer was set-up in southern Belgium. All subjects are recruited at the department of pneumology of the clinic of the catholic university of Louvain at Mont Godinne. In the first year some 130 persons entered the study. Preliminary analysis of the data gives an odds ratio of 4.2 for the exposed group of male smoking cases compared to the matched non exposed control group.

Aged

Hepatitis C among risk groups for HIV and hepatitis B.

In order to obtain more information on sexual transmission of hepatitis C (HCV) we compared different high-risk groups for HIV and hepatitis B to see if they were seropositive for HCV. A high seroprevalence (38/81) of hepatitis C (HCV) was found among intravenous drug users. Nursing staff (n = 35) and patients of a dialysis unit (n = 57) had a low prevalence of anti-HCV antibodies (0% and 5%, respectively). Serology laboratory technicians also had a very low prevalence (0% out of 29). Among prostitutes (n = 114), healthy homosexual men (n = 132) and HIV-infected homosexual men (n = 31), we found a remarkably low seroprevalence of HCV (3.5%, 0.8% and 0.0% respectively). These data support the view that parenteral exposure to the virus is the most important way of acquiring the infection and that neither heterosexual nor homosexual promiscuity are associated with a high risk of transmission of hepatitis C.

Belgium