Search PubMed⌕ Search

Biomedical subjects

K Wellings

Publications and source records attributed to K Wellings.

At least 37 records · Page 2Linked to original sources

Post-exposure prophylaxis after occupational and non-occupational exposures to HIV: an overview of the policies implemented in 27 European countries.

The aim of this survey, which was part of an English-French project supported by the Commission of the European Communities, was to compare access to HIV post-exposure prophylaxis (PEP) in the occupational and non-occupational contexts in 27 European countries. A protocol was designed in May 1998 in collaboration with all country consultants. Data were collected at country level by each consultant through interviews, review of local and national recommendations and results of national or local surveys. The final comparative analysis was carried out from the individual country reports and a review of the literature. The large majority of European countries have detailed procedures regarding occupational PEP: 20/27 have produced national guidelines, three have adopted the US CDC recommendations and only four have no official recommendations. Although no standard protocol exists, the more common one is a four-week implementation of a triple combination therapy. In the context of non-occupational exposure to HIV, only five countries have guidelines with specific recommendations and one country has adopted the CDC recommendations. In the majority of cases (13 countries), PEP is never recommended but is only available in a few circumstances, sometimes with major limitations. In the last eight countries, such PEP is not currently available. Although the estimations of HIV transmission risks in occupational and non-occupational contexts are really comparables, easy access to PEP after accidental sexual or blood exposures is not guaranteed for the general population in the majority of European countries.

Anti-HIV Agents↗

Seasonal variations in sexual activity and their implications for sexual health promotion.

Although seasonal variations in births are observed in all human populations, the links between calendar events and sexual activity have received little attention in relation to health promotion and service provision. We have plotted various relevant data--routinely collected data for births within and outside of marriage, abortions, sexually transmitted infections, human immunodeficiency virus tests and condom sales figures--by calendar period. The trends point consistently to an increase in sexual activity and unsafe sex occurring at or around the Christmas period, and a longer but less pronounced subsidiary period of increased sexual activity and unsafe sex coinciding with the summer vacation. We conclude that seasonal patterns of sexual activity have implications for provision of sexual health services and for the timing and targeting of sexual health promotional interventions.

Abortion, Induced↗

Trends in teenage pregnancy in England and Wales: how can we explain them?

Teenage pregnancy is associated with adverse social and physical outcomes for both mother and child. We drew on various sources--birth and abortion statistics from the Office for National Statistics, data from the National Survey of Sexual Attitudes and Lifestyles, and routinely collected data from family planning clinics--to identify trends in England and Wales and their possible determinants. The rate of teenage sexual activity has increased steadily and consistently over the past four decades, whilst the rate of teenage fertility has shown greater variation. When the teenage fertility rate is calculated against the denominator of sexually active women, rather than the total sample of teenage women, the underlying trend in teenage fertility over the past four decades has been downwards, though not consistently so. Fluctuations in the teenage fertility rate seem to track intervention-related factors such as access to, and use of, contraceptive services and the general climate surrounding the sexual health of young people.

Abortion, Induced↗

Teenage fertility and life chances.

Teenage mothers and their children face poorer prospects in life than do women who delay motherhood until later in life. Moreover, patterns of early childbearing tend to be repeated in subsequent generations. Therefore, an understanding of the factors associated with early fertility is important for the prevention of adverse consequences. This paper uses data from the National Survey of Sexual Attitudes and Lifestyles to explore these associations. Early sexual intercourse is an important predictor of early fertility, as is poor educational attainment, although it is not clear to what extent pregnancy acts to thwart academic ambitions, or to what extent poor educational performance leads to a need to seek personal fulfilment in other than academic goals. Thus, interventions designed to influence age at first intercourse and to improve educational performance both have potential in terms of impacting on teenage pregnancy rates. Family background also exerts a powerful influence on teenage fertility. Young people for whom one or both parents are absent are more likely to become parents early in life. However, the most important factor of family life determining the chances of teenage motherhood appear to be the quality of communication about sexual matters with the home. In terms of outcomes, teenage mothers are more likely to live in social housing, are less likely to be in paid employment and have larger than average sized families. Certain areas of the country, notably the older, run-down industrial areas, have higher rates of teenage motherhood than the newer, more prosperous areas. Because most of these effects are independent of one another, there is potential merit in intervening to prevent unintended conception at several points in a young woman's life. Primary preventive efforts are needed to reduce the rates at which teenage pregnancy occurs in this country. Yet, if the cycle of deprivation that means the children of young mothers themselves enter parenthood early is to be broken, then efforts must also be made to mitigate the effects of teenage fertility for both mother and child.

Adolescent↗

First sexual intercourse: anticipation and communication. Interviews with young people in England.

This study investigated anticipation and communication around first sexual intercourse through semi-structured interviews with young people (aged 16 to 29) in England. Ranging from surprise to pre-planning, several different levels of anticipation are explored. The main findings are as follows: communication plays a central role, mediating between the degree of anticipation and the degree to which first intercourse is wanted, protected and enjoyed. First intercourse tends to be characterized by silence, especially during early, spontaneous encounters. Silence does not imply lack of communication-non-verbal communication plays an important role. Where young people are ambivalent, verbal and non-verbal communication may send contradictory messages. The implications of the results for future safer sex campaigns are discussed.

Adolescent↗

Using condom data to assess the impact of HIV/AIDS preventive interventions.

The effective evaluation of preventive activities depends on the identification of indicators and the selection of appropriate outcome measures which reflect the goals of the intervention. An increase in condom use has been seen as a positive sign of the impact of HIV/AIDS public education. This paper examines possible sources of data relating to condom use in the context of assessing public response to the AIDS epidemic, with particular reference to methodological challenges presented by each; issues relating to the validity of data, problems of interpretation and the scope for improvement. A multiple indicator approach, using several types of data in unison, is advocated. Conclusions drawn from the multiple indicator approach are likely to be firmer and sounder than those drawn from the single indicator approach, and are more likely to offer insight into the mechanisms which influence particular outcomes.

Adolescent↗

Private sexual behavior, public opinion, and public health policy related to sexually transmitted diseases: a US-British comparison.

OBJECTIVES: The purpose of this study was to characterize sexual behavior and opinions about sex in the United States and Britain; implications are discussed for effective public health policy regarding sexually transmitted diseases (STDs) in the United States. METHODS: Large-scale national probability surveys conducted in the 2 countries detailed sexual behavior, opinions, and the prevalence of STDs. RESULTS: In comparison with that of Britain, the US population has greater variability in sexual behavior, less tolerant opinions about sexual behavior, and a higher STD prevalence and lower condom usage among men. CONCLUSIONS: The survey data show compelling evidence from both countries of a strong association between number of sex partners and STD risk. In the United States relative to Britain, there is both greater dispersion in sexual behavior and a greater incidence of unconditional opposition to certain sexual practices. The former implies a need for strong public health policy to address the risks of STDs, but the latter implies strong opposition to that policy. This disjuncture between public health need and feasibility may contribute to the high US rate of STDs.

Adolescent↗

Geographic variation in sexual behaviour in Britain: implications for sexually transmitted disease epidemiology and sexual health promotion.

OBJECTIVES: To explore geographical variation in sexual behaviour in Great Britain with reference to the prevalence of HIV infection. DESIGN: The National Survey of Sexual Attitudes and Lifestyles comprises a randomly selected, representative sample of almost 19,000 men and women aged 16-59 years living in Great Britain. METHODS: The survey was carried out using a combination of face-to-face interview and self-completion questionnaires and a wide range of data was collected. In this study, data on numbers and sex of sexual partners, condom use, injecting drug use, perception of risk of AIDS and lifestyle change were analysed, and comparisons were made between the different geographical areas in Great Britain. RESULTS: In the last 5 years, men living in Inner London were more likely to have a male partner [odds ratio (OR), 5.6; 95% confidence interval (CI), 3.1-10.0] or to have had 10 or more female partners (OR, 2.4; 95% CI, 1.6-3.6) than men living in other parts of the country. Similar results were observed for women living in Inner London: OR for a female partner in the last 5 years was 4.1 (95% CI, 1.6-10.2) and for five or more male partners in the last 5 years was 2.1 (95% CI, 1.5-2.8). More complex, but less striking patterns of behaviour were seen in different parts of the country. Both men and women living in Inner London were more likely to recognize that they were at some risk of acquiring HIV and were also more likely to report a change in sexual lifestyle. CONCLUSIONS: These analyses highlight the difficulties inherent in extrapolating from sexual behaviour data gathered using purposive samples to the population as a whole. The results are consistent with the known epidemiology of HIV and sexually transmitted diseases in Britain. The data suggest that cases of HIV will continue to be concentrated in Inner London, but Londoners are particularly aware of their risk. Reported behaviour change in response to perception of risk of AIDS underlines the importance of effective health promotion.

Adolescent↗

Who goes to sexually transmitted disease clinics? Results from a national population survey.

OBJECTIVES: To examine the pattern of attendance at sexually transmitted disease (STD) clinics in Britain. To compare the demographic characteristics, behaviours and attitudes of STD clinic attenders with those of non-attenders, and to assess the extent to which STD clinics are used by those with high-risk sexual lifestyles. DESIGN: Random sample general population survey of sexual attitudes and lifestyle. SUBJECTS: 18,876 randomly selected men and women resident in Britain aged 16-59 years. MAIN OUTCOME MEASURES: Demographic characteristics, pattern of homosexual partnerships, heterosexual partnerships, payment for sex, abortion, drug injection in the last five years, and attitudes to sexual behaviours amongst 512 respondents who had attended STD clinic in the last five years compared with those who had not. RESULTS: 8.3% of men and 5.6% of women had attended a clinic in their lifetime and 3.4% and 2.6% respectively in the last five years. Attendance rates varied substantially with area of residence. 11% of Inner London residents had attended in the last five years. In multivariate analysis, STD clinic attendance for men was most strongly associated with increased numbers of heterosexual partners, (OR = 6.01 (4.44-8.15) and homosexual partnerships (OR = 9.59 (5.83-15.8)) and more weakly associated with payment for sex, non-manual social class, age 25-44, unmarried status and smoking. Clinic attendance for women was most strongly associated with numbers of heterosexual partners (OR = 3.74 (2.76-5.08) and injecting drug use (OR = 4.39 (1.73-11.1)). A weaker independent association was found with a history of abortion, anal sex, non-manual social class, non-married status and age 16-24. From the total population, 1 in 6 men and 1 in 7 women in the top 5% of the distribution for numbers of heterosexual partners and 1 in 5 men paying for sex and 1 in 4 of those with a homosexual partner had attended a clinic in the last five years. The probability of attendance increased with multiple risk behaviours. Of women 64.2% and of men 69.7% attending clinics reported major risk markers for STD transmission. CONCLUSIONS: STD clinics in Britain are used by a wide demographic spectrum of the population. The behaviours, but not the attitudes, of attenders differed markedly from those of non-attenders. Clinics are relatively efficient in attracting only those with high-risk lifestyles, but, at a population level, the minority of those reporting risk-markers for STD transmission attend clinics. These findings suggest that STD clinics are an important focus for sexual health promotion, but that community programmes are also important for reaching non-attenders.

Adolescent↗

Provision of sex education and early sexual experience: the relation examined.

OBJECTIVES: To explore the relation between receipt of sex education and experience of first intercourse. SUBJECTS AND DESIGN: The national survey of sexual attitudes and lifestyles is based on a sample of 18,876 respondents aged 16-59, randomly selected from the Post Office's small-user postcode address file. Data were collected between May 1990 and November 1991 by personal interviews combining a self administered questionnaire with a face to face interview. MAIN OUTCOME MEASURES: Age at first intercourse, use of contraception at first intercourse, actual and preferred source of sex education (including school based lessons). RESULTS: Median age at first intercourse fell by four years for women and three years for men over the past four decades, to 17 for both men and women aged 16-19 at the time of interview. Of those respondents for whom school was the main source of information about sexual matters, men were less likely, and women no more likely, to have had intercourse before the age of 16 than were those citing other main sources, such as friends and the media. Both men and women were more likely to have used some method of contraception. In multivariate analysis, these effects remained after controlling for the effect of current age, educational attainment, and religious affiliation. CONCLUSIONS: These data provide no evidence to support the concern that provision of school sex education might hasten the onset of sexual experience. These findings have important implications for the provision of sexual health education and highlight the need to carry out prospective and randomised studies of the impact of sex education.

Adolescent↗

Sexual behaviour and HIV epidemiology: comparative analysis in France and Britain. The ACSF Group.

OBJECTIVE: France and Britain have similar size populations, yet the incidence of AIDS is threefold higher in France. The objective of this study was to compare data from two surveys recently performed in the two countries, in order to determine whether differences in sexual and drug-use behaviour could explain the different epidemiological patterns. DESIGN: Cross-sectional random sample surveys of France and Britain. RESPONDENTS: In France, 20,055 persons aged 18-69 years and in Britain, 18,876 persons aged 16-59 years were interviewed in 1990-1991. The following indicators were compared in the respondents aged 18-59 years: prevalence of homosexual experience and injecting drug use, number of sexual partners, prevalence of sexual practices, condom use and sex with prostitutes, age of sexual partners. RESULTS: Very similar results were found for the prevalence of male homosexual partnerships. Slightly higher numbers of lifetime partners were reported by French than British men, but no difference was found for recent periods. Anal intercourse and sex with prostitutes was more frequent among heterosexual French people than British people. Condom use was more systematic in Britain than in France. CONCLUSION: Only small differences were found between the two countries, although prevalence of risk indicators were higher in France. These differences combined with early development of prevention policies in Britain, together with the timing of virus introduction, may contribute to differences between the epidemics in the two countries.

Acquired Immunodeficiency Syndrome↗

Assessing AIDS/HIV prevention: what do we know in Europe? General population.

One aim of this EC Concerted Action Programme has been to compare and contrast AIDS/HIV prevention strategies aimed at the general population, and the methods used to assess them, in order to arrive at a better understanding of how public education in this area might optimally be effected and evaluated. To this end, data have been collected on interventions and their evaluation for selected European countries by means of site visits, postal questionnaires and expert meetings of those involved. These data have been analysed where possible in relation to other relevant variables including the social and political context in which AIDS public education has taken place, the existing tradition of health education, the financial and manpower resources available and the nature of the HIV epidemic in each country. Initial analysis shows that there have been remarkable parallels between AIDS public education campaigns in different European countries in terms, for example, of their sequence and progression, and their content. At the same time, essential differences are apparent with respect to the ease with which it has been possible to implement strategies, the tone and style of initiatives, and their reception by and effect on the general population. Attempts to attribute these differences to specific cultural, political or operational factors are difficult, but the cross national comparison holds valuable lessons for both campaigns and their evaluation.

Acquired Immunodeficiency Syndrome↗

Sexual behaviour.

Explore the source record for details and available documents.

Data Collection↗

Methodology of the National Survey of Sexual Attitudes and Lifestyles.

"The preparation and fieldwork for the National Survey of Sexual Attitudes and Lifestyles was carried out between 1987-1991. The survey was a combination of a face-to-face interview and self-completion questionnaire and comprised 18,876 individuals aged 16-59 years in Great Britain. The response rate was similar to other sample surveys on less sensitive topics. Women were overrepresented but the distributions of other demographic characteristics were similar to other data sets. The external validity and internal consistency of the data were found to be adequate. The likely sources and effects of bias are discussed."

Attitude↗

Sexual lifestyles and HIV risk.

Britain's first large, national survey of sexual attitudes and lifestyles will allow improved estimates of the magnitude of the HIV epidemic in Britain and should lead to better strategies for prevention.

Adolescent↗