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PubMed2002

Evolved sex differences in the number of partners desired? The long and the short of it.

Do men seek more short-term mates than women? Buss and Schmitt (1993) showed a pattern of mean difference in the ideal number of sexual partners men and women desired over various time frames. We replicated these mean sex differences (e.g., ideal number over the next 30 years: Ms = 7.69 and 2.78 for men and women, respectively), but in both data sets the sampling distributions were highly skewed. In Study 1, we found few sex differences in medians across time frames (e.g., ideal number over the next 30 years: Mdn = 1 for both men and women). In Study 2, most college men (98.9%) and women (99.2%) said they wanted to settle down with one mutually exclusive sexual partner at some point in their life, ideally within the next 5 years. Neither medians in number of partners desired overall before settling down (replicating Study 1) nor medians in short-term partners desired before settling down (Mdn = 0) differed significantly by gender. Rather, men and women concurred: Short-term mating is not what humans typically seek.

Adult↗
PubMed1989

Recent sexual behaviors among homosexual men seeking primary medical care.

We studied the sociodemographic characteristics, knowledge, and beliefs about acquired immunodeficiency syndrome transmission and sexual practices of 823 gay or bisexual men seeking primary care. During the previous 2 months, 64% had engaged in at least one sexual behavior considered unsafe. These patients compared with those having safer sex, were younger, of lower socioeconomic status, and from a racial minority, especially Latino. The unsafe group also had more sexual partners, engaged in sexual acts more often, felt less in control over their sexual behavior, used recreational drugs more frequently, and were less likely to talk about safe sex with partners. The unsafe group had less adequate knowledge about human immunodeficiency virus transmission but felt safer from the risk of acquired immunodeficiency syndrome even when engaging in unsafe sex. Educational programs dealing more directly with belief systems and the potential addiction to recreational drugs and sexual behaviors need to be developed for primary care settings.

Acquired Immunodeficiency Syndrome↗
PubMed1994

A profile of HIV-risk behaviours among travellers--a population based study of Danes visiting Greenland.

The population of Greenland has behavioural characteristics that indicate a high risk of HIV spread once HIV is introduced into the population. Much depends, however, on the degree of exposure from visitors, particularly in an initial phase. We used a national questionnaire survey of 4,680 randomly selected Danes between 18-59 years to study HIV risk behaviours among Danes with (+travellers) and without (-travellers) travel experience to Greenland. Median number of lifetime sexual partners was more than twice as high among male +travellers (median = 12 partners) compared to -travellers (median = 5; p < 0.0001) and also slightly higher among women (p = 0.03). Furthermore, a significantly higher percentage of male +travellers than -travellers reported prostitute contact (OR = 2.3 (95% CI: 1.4-3.9)), with a peak of 32.0% among men aged 40-49 years. A history of a sexually transmitted disease was three times (95% CI: 2.0-4.5) as common among +travellers as in -travellers. +Travellers were also significantly more likely to have visited other places outside Europe and Greenland, including HIV endemic areas (OR = 2.9 (2.0-4.1)). Overall, sexual contact with someone considered at high risk of HIV infection (a homo/bisexual man, intravenous drug user, prostitute, or previous or present resident of Sub-Saharan Africa) was reported by 33.5% of male +travellers compared to 15.6% of -travellers and among women by 9.7% and 5.0%, respectively. In conclusion, travellers tend to have more sexual partners and more sexual interaction with high HIV-risk group members than non-travellers.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1994

Prevalence and correlates of AIDS-related behavioral intentions among urban minority high school students.

Using data from a cross-sectional survey of 926 predominantly black and Hispanic ninth through twelfth graders in three New York City public high schools, the explanatory power of theoretically and empirically derived predictors (i.e., demographic, contextual, and cognitive) of intentions to engage in sexual intercourse, to be sexually monogamous, to use condoms during intercourse, and to ascertain intercourse partners' sexual and drug-use histories was compared. One-third of sampled students "definitely" intended to have sexual intercourse in the next year, one-half "definitely" intended to be sexually monogamous, two-thirds "definitely" intended to use condoms during intercourse, and three-quarters "definitely" intended to ascertain intercourse partners' sexual and drug-use histories. In a predictive model including all investigated variables, those variables derived from the cognitive set (i.e., beliefs about susceptibility to getting AIDS, and beliefs about barriers, self-efficacy, norms, and values pertaining to AIDS-preventive actions) were most strongly associated with the four investigated behavioral intentions. However, certain variables derived from the demographic set (i.e., age, gender, race/ethnicity) and contextual set (i.e., previous behavioral involvement, cues, academic failure, substance use) also contributed explained variance to all four intentions.

Acquired Immunodeficiency Syndrome↗
PubMedDate not supplied

Male-to-female transmission of HIV in a cohort of hemophiliacs--frequency, risk factors and effect of sexual counseling.

The incidence of male-to-female transmission of HIV infection was studied in a population of 198 sexual partners of hemophiliacs who tested HIV positive since 1984. The follow-up observation period was 1987-1992. Transmission occurred in 20 (10%) cases. The analysis of risk factors for transmission was performed in a subgroup of 57 hemophiliacs with seronegative sexual partners as compared to eight transmitters. Transmitters showed a significantly more advanced immune depletion at enrollment as well as at the end of the observation period. Furthermore, transmitters had a more advanced disease at the end of the study (75% vs. 29% CDC IV; p < 0.01). Also virus cultures were more frequently positive in the transmitters than in the non-transmitters (71% vs. 42%). Regular sexual counseling was offered to all couples. After 1987, no new seroconversions were detected. However, two seroconversions in female partners of hemophiliacs outside the initial study population were observed. Both transmissions occurred during a period of severe clinical and immunological deterioration. This study shows that sexual partners of HIV-infected hemophiliacs with more advanced disease are at higher risk of infection with HIV. The frequency of male-to-female transmission of HIV in long-term monogamous sexual relationships practicing safer sex is low. Overall, disease awareness and counseling for safer sex seem to be effective in reducing transmission rates.

Adult↗
PubMedDate not supplied

Prevalence and patterns of condom use among patients attending a sexually transmitted disease clinic.

The purpose of this study is to evaluate prevalence and patterns of condom use among patients attending a sexually transmitted disease (STD) clinic, who are at increased risk of developing STDs. Interviews of 800 patients attending a Baltimore STD clinic were conducted. The prevalence of condom use was dependent on the measure of use employed. For example, 9 out of 10 patients reported ever having used condoms, slightly less than one-third of the patients reported having used condoms in the past 30 days, and only 17% of the patients reported using a condom at last sex. Use also varied somewhat by type of sexual partner, and within any given relationship, from first to last sexual encounter. The most significant factor corresponding to condom use in the 30 days prior to the interview was number of sexual partners (lifetime and in the last month). Multivariate analyses revealed number of lifetime partners to be the most significant predictor of condom use for men, whereas age was the most significant variable for women. These findings suggest that interventions should focus not only on the individual, but the couple.

Adolescent↗
PubMedDate not supplied

Reported changes in the sexual behavior of men at risk for AIDS, San Francisco, 1982-84--the AIDS Behavioral Research Project.

We surveyed 454 men in November 1983 and in May 1984 regarding their sexual practices during the month before the survey. In the 1983 survey, we also asked for reports about sexual behavior during the same month 1 year prior to the survey. The sample consisted of men recruited as they left bath-houses and bars, men who had not used bars or baths for meeting sexual partners for 2 months prior to the November 1983 survey, and men in committed primary relationships with another man. We found substantial changes in reported sexual behavior with persons other than a primary partner. The average number of male partners declined from 6.3 in November 1982 to 3.9 in May 1984. Receptive anal intercourse without condom declined from 1.9 to 0.7, oral-anal contact declined from 1.1 to 0.3, and swallowing semen declined from 2.8 to 0.7 in terms of the number of times that the respondent engaged in the act in the last month. These same changes did not occur in relation to sex with a primary partner. Only one variable, namely, increased length of time since the first homosexual experience, distinguished persons maintaining few sexual partners from those increasing the number of sexual partners from November 1983 to May 1984. Four variables distinguished those retaining high numbers of sexual partners from those lowering the number of sexual partners, namely, ability to remember a visual image of AIDS deterioration, age, relationship status, and length of time since first homosexual experience.

Acquired Immunodeficiency Syndrome↗
PubMed2007

Factors and the sociosexual network associated with a syphilis outbreak in rural North Carolina.

OBJECTIVE: An investigation was conducted to determine factors associated with a syphilis outbreak in a rural North Carolina county. STUDY DESIGN: A retrospective chart review was performed on 61 primary (PS), secondary (SS), and early latent (ELS) syphilis case patients reported in Columbus County between January 2001 and February 2002. Sociosexual network analysis was conducted using electronic contact tracing information. RESULTS: We identified 20 PS, 25 SS, and 16 ELS case patients who were predominantly black. Seventy-two percent had reported >or=1 sexual partner with early syphilis, 51% used crack cocaine and/or had sex with a crack-using partner, and 31% exchanged sex for drugs or money. The sexual network exhibited predominantly linear connections between case patients and sexual partners. Adding social connections to the network further demonstrated dense cyclic interactions characteristic of core groups. CONCLUSIONS: The syphilis outbreak in this rural community was associated with crack cocaine and exchange of sex for drugs in a densely interconnected sociosexual network.

Adolescent↗
PubMed1994

Prevalence of HIV-1 infection in urban, semi-urban and rural areas in Arusha region, Tanzania.

OBJECTIVE: To estimate HIV-1 prevalence among the adult population in the Arusha region, northern Tanzania. DESIGN: Cross-sectional study. METHODS: Clusters of 10 households were randomly selected from urban, semi-urban and rural areas in the Arusha region. Informed verbal consent for participation in the interview and HIV-1 test were obtained from the respondents. HIV-1 antibodies were tested using enzyme-linked immunosorbent assay (ELISA) and all ELISA-positive sera were confirmed using Western blot. Approximately 66.0% of the eligible registered adults (aged 15-54 years) participated in the interview, of whom 56.6% provided blood samples for HIV-1 testing. RESULTS: HIV-1 prevalence rates among the study population from the low and high socioeconomic status urban areas, semi-urban area and rural village were 10.7, 5.2, 2.2 and 1.6%, respectively. HIV-1 prevalence was significantly higher among women (6.5%) than men (1.7%), and infection rates were consistently higher among women than men in all areas studied except in the rural village. Divorced and separated individuals had significantly higher HIV-1 prevalence (14.8%) compared with married and cohabiting individuals (4.0%). Significantly more individuals with multiple sexual partners reported regular condom use (19.3%) than those with one sexual partner (6.4%). CONCLUSION: HIV-1 prevalence in the Arusha region was higher among the urban population than among the rural population. Women living in urban areas with low socioeconomic status appeared to be associated with increased risk of HIV-1 infection.

Acquired Immunodeficiency Syndrome↗
PubMed1991

Sexuality and sexually transmitted diseases in older men attending the Genito-Urinary Clinic in Birmingham.

Eighty-seven men aged 60 years and over who attended the sole genito-urinary clinic in Birmingham during the year 1989 had their records reviewed. Sixty-five (75%) were sexually active and the most frequent complaints were penile soreness and urethral discharge. Nineteen patients had positive serological tests for syphilis (TPHA) and two men, both homosexuals, had positive hepatitis (HBA2) serology. In this age group, compared to a Caucasian, an Afro-Caribbean man had an Odds Ratio of 4.68 of having a positive serological test for syphilis. Two patients had psychosexual problems and one genital ulcer was squamous cell carcinoma of the penis. The men with multiple sexual partners were more likely to have a past history of sexually transmitted diseases (STD) (p less than 0.05).

Age Factors↗
PubMed1985

[Epidemiologic study by interview on carcinoma in situ of the cervix uteri].

From 1950 to 1979, 1248 patients with cancer in situ of the cervix uteri were treated at the Department of Gynecology, Cancer Institute Hospital, Tokyo. Information was obtained from 585 of these patients by direct interview. Many patients revealed early experience of first sexual intercourse and many had had more than two sexual partners and a large discrepancy between the age at first sexual intercourse and at first marriage. Early experience of first sexual intercourse, marital status and the number of sexual partners all seem to have a relation to the development of cancer in situ.

Adult↗
PubMed1999

Sexual transmission of hepatitis C virus.

Sexual transmission of hepatitis C virus (HCV) occurs; however, to what extent is still unclear. In this presentation relevant data from the literature concerning the following key issues will be presented: presence of HCV in the seminal fluid and vaginal secretions; presence of HCV infection in sexually promiscuous individuals; presence of HCV infection among sexual partners to HCV-infected individuals; and molecular biology evidence of sexual transmission. An anti-HCV prevalence of 2-12% is seen in sexually promiscuous individuals, which is higher than that usually seen among blood donors. In case-control studies, HCV infection is associated with sexual promiscuity and sex with a partner who has a past history of hepatitis. In most studies, HCV infection is common among sexual partners of HCV-infected subjects. Genotyping and genome sequencing provide further evidence for intraspousal transmission of HCV Despite these findings, stable sexual partners of hemophiliacs or recipients of HCV-contaminated immunoglobulin preparations rarely become infected. These discrepancies are not fully understood. Other sexual behaviours or confounding non-sexual transmission routes could play a part.

Case-Control Studies↗
PubMed2004

The differential association of intimate partner physical, sexual, psychological, and stalking violence and posttraumatic stress symptoms in a nationally representative sample of women.

This study examines whether experiences with four different types of intimate partner violence (IPV) increase risk for posttraumatic stress disorder (PTSD) symptoms. We examined impacts of physical, sexual, psychological, and stalking victimization by a current partner on PTSD symptoms, the extent to which each type of IPV accounted for significant variance in PTSD symptoms when controlling for other forms, and the increase in PTSD symptoms from multiple forms of IPV. Findings reveal that all types of violence were associated with increased PTSD symptoms. When controlling for other types of violence, physical, psychological, and stalking violence were still associated with PTSD symptoms. There was evidence of a dose response in which the more types of violence experienced, the more PTSD symptoms.

Adult↗
PubMed2004

Molecular characterization of human immunodeficiency virus type 1 and hepatitis C virus in paid blood donors and injection drug users in china.

China is facing a rapid upsurge in cases of human immunodeficiency virus type 1 (HIV-1) and hepatitis C virus (HCV) infection due to large numbers of paid blood donors (PBD), injection drug users (IDU), and sexual partners of infected individuals. In this report, a total of 236 HIV-1-positive blood samples were collected from PBD, IDU, and their sexual partners in the most severely affected provinces, such as Henan, Yunnan, Guangxi, and Xinjiang. PCR was used to amplify the p17 region of gag and the C2-V3 region of env of HIV-1 and the 5' noncoding region and a region of E1/E2 of HCV. Genetic characterization of viral sequences indicated that there are two major epidemics of HIV-1 and multiple HCV epidemics in China. The PBD and transfusion recipients in Henan harbored HIV-1 subtype B', which is similar to the virus found in Thailand, and HCV genotypes 1b and 2a, whereas the IDU in Yunnan, Guangxi, and Xinjiang carried HIV-1 circulating recombinant forms 07 and 08, which resemble those in India, and HCV genotypes 1b, 3a, and 3b. Our findings show that the epidemics of HIV-1 and HCV infection in China are the consequences of multiple introductions. The distinct distribution patterns of both the HIV-1 and HCV genotypes in the different high-risk groups are tightly linked to the mode of transmission rather than geographic proximity. These findings provide information relevant to antiviral therapy and vaccine development in China and should assist public health workers in implementing measures to reduce the further dissemination of these viruses in the world's most populous nation.

Blood Donors↗
PubMed2005

Sexual behaviour, perception of HIV/AIDS and condom use among commercial motorcylists in Benin City.

OBJECTIVE: This study aims to evaluate the perception of HIV/AIDS, condom use and the sexual behaviour of commercial motorcyclists in Benin-city, Edo State. DESIGN: A questionnaire based study involving consecutive 160 male commercial motorcyclists. SETTING: The study was conducted in three randomly selected major motorcycle parks in Benin-city. The three parks were selected using a multi stage random sampling technique. In each of the selected parks, consecutive motorcyclists were interviewed until a total of 160 respondents had been interviewed. RESULTS: One hundred and fifty-two (95%) of the respondents were acquainted with the subject of HIV/AIDS, but only 140(87%) believed that the disease actually existed. Sixty-six per cent of the respondents had multiple sexual partners while 26% of the subjects had been treated for a sexually transmitted infection. Of the 54 (34%) men who believed the disease had a cure, 46% and 32% felt that the cure was herbal and spiritual respectively. Although 106 of the men (66%) acknowledged the preventive function of the condom in the spread of HIV/AIDS and other sexually transmitted infections, only 45% used the condom regularly with sexual partners. Sixty-two per cent of the respondents would submit themselves to voluntary HIV screening though none had gone for voluntary screening. CONCLUSION: The study suggests that the sexual behaviour of the commercial motorcyclist and a scarcity of information expose him to increased risk of HIV/AIDS infection and other sexually transmitted infections.

Acquired Immunodeficiency Syndrome↗
PubMed1989

Sexual assessment and the aging female.

Due to an increasing population of elders, more women are in need of geriatric gynecologic care. Many of these women are capable of being active sexual partners throughout their lifetimes. However, there are a number of factors that can influence sexual relationships, including personal and societal values, the normal physiologic changes associated with aging and the availability of a sexual partner. Obtaining accurate histories and appropriate physical data regarding sexual functioning are important. Measures that will aid the collection of a complete database, along with pertinent physical assessment, are discussed. Options for treatment and education of the elderly woman in the area of sexual needs are presented to assist health care providers in their role as sex educators and counselors for older women.

Aged↗
PubMed1999

Seroprevalence of human papillomavirus type 16 in pregnant women.

OBJECTIVE: To determine the seroprevalence of and risk factors for human papillomavirus (HPV) type 16 capsid antibodies in a large cohort of pregnant women. METHODS: Antibodies against in vitro produced HPV-16 capsids were measured in stored sera from 2597 pregnant women enrolled from 1984 through 1989 in the Vaginal Infection and Prematurity Study, New Orleans site. RESULTS: Women in this study were primarily black (83.4%) with a mean age of 23.4 years (standard deviation [SD], 5.1), mean number of sexual partners in lifetime was 3.3 (SD, 6.6), and the mean age at sexual debut was 16.7 years (SD, 2.2). Overall, 28.0% (n = 727) of these women were positive for HPV-16 capsid antibodies. In bivariate analysis, the presence of antibodies against HPV-16 was correlated with numerous demographic characteristics as well as history of various sexually transmitted diseases. However, neither current cervical or vaginal infection nor adverse obstetric outcome was associated with increased detection of HPV-16 antibodies. In multivariate logistic regression analysis, factors predictive of HPV-16 seropositivity were: more than five lifetime sexual partners (odds ratio [OR], 1.80; 95% confidence interval [CI], 1.28, 2.52), 6 or more years of sexual activity (OR, 1.84; 95% CI, 1.22, 2.78), level of education (OR, 1.26; 95% CI, 1.03, 1.55), and history of Neisseria gonorrhoeae infection (OR, 1.53; 95% CI, 1.20, 1.96). CONCLUSION: HPV-16 seropositivity correlates with measures of sexual activity, confirming its role as a sexually transmitted disease, and its prevalence is similar to that in nonpregnant populations. HPV-16 seropositivity does not predict an adverse obstetric outcome.

Adult↗
PubMed1988

HIV infection and associated risk factors in female prostitutes in Kinshasa, Zaire.

In Africa, female prostitutes represent a high risk group for HIV infection. In Kinshasa, Zaire, 101 (27%) out of 377 prostitutes were seropositive to HIV by ELISA and Western blot determination. Seropositivity was significantly associated with the number of lifetime partners with a median number of 600 partners, four seropositives and 338 for seronegative individuals (P = 0.02). Seropositivity was also significantly associated with a history of taking oral medications for the prevention of sexually transmitted diseases and/or pregnancy (odds ratio = 2.21, confidence interval = 1.2-4.2), and with the introduction of any product into the vagina for hygiene or other purposes (odds ratio = 2.3, confidence interval = 1.1-4.7). In addition, among 85 prostitutes reporting condom use by their sexual partners during the previous year, the use of condoms by 50% or more of partners was associated with a reduced risk of HIV seropositivity (P = 0.046). An increased risk of HIV seropositivity was not associated with fellatio, anal intercourse, or with any type of kissing. Twenty-nine per cent of prostitutes reported at least one symptom suggestive of HIV infection, and seropositivity was associated with weight loss, either with or without chronic diarrhea or pruritic dermatitis. These data confirm that African prostitutes are at high risk for HIV infection and that the number of lifetime sexual partners, and factors which interfere with the integrity of the vaginal or cervical mucosa, may be associated with an increased risk of HIV infection acquired through heterosexual contact.(ABSTRACT TRUNCATED AT 250 WORDS)

Acquired Immunodeficiency Syndrome↗