Slowing the spread of human immunodeficiency virus in developing countries.
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The major television networks have considered airing condom advertisements. A Louis-Harris poll entitled "Attitudes About Television, Sex and Contraceptive Advertising" conducted in early 1987 concluded that at least 60% of adult Americans were in favor of such advertisements. To better understand the attitudes of adolescents and parents of adolescents in a private practice setting toward contraceptive advertisement on television, the present study was performed. Between March and June 1987, 108 parents of adolescents, 100 adolescent females, and 90 adolescent males filled out a questionnaire asking their opinions of such advertisements. Eighty-three percent of the parents, 89% of adolescent females, and 92% of adolescent males approved of such advertisements. The data suggest that a majority of adults and adolescents approve of condom advertisements on television. The use of the media to take advantage of the present opportunity to educate and promote birth control and disease prevention to our adolescent population may be beneficial.
Health providers are becoming increasingly aware that adolescents are a population at risk for acquired immune deficiency syndrome (AIDS) and have identified education as essential for prevention. This study evaluates three clinic-based programs designed to determine the effects of education on knowledge and attitudes regarding AIDS and condom acquisition. Seventy-five sexually active females attending adolescent health clinics were randomly assigned to one of three groups: 1) controls (C) receiving no education; 2) education (E) alone consisting of a brief lecture on AIDS: and 3) enhanced education (EE) where the lecture was provided as well as a videotape describing the importance of condom use. All participants completed the AIDS Knowledge Questionnaire-Revised, the AIDS Attitude Survey, a self-report measure of condom use and received a coupon that could be exchanged for free condoms from the hospital pharmacy. A significant effect was found for knowledge, where both E and EE were superior to controls (p less than .001). No statistical differences were noted across groups regarding attitudes or condom acquisition. However, all adolescents in the EE group who reported prior condom use obtained condoms from the pharmacy as compared to the other groups (p less than .05). Our results suggest that educating adolescents in medical settings can improve their knowledge about AIDS. Didactic lectures in combination with videotape presentations on condom use appeared to be the best format for reinforcing an adolescent's existing behavior.
According to the World Health Organisation survey, 3 million women are already infected with HIV all over the World, but in India the problem of AIDS as a whole is not that acute especially in women. At least it is not that alarming. India, having a very high incidence of STD, it will not take much time for the spread of the HIV infection. No case of mother-to-infant transmission of HIV and resultant clinical disease in the neonate and children has as yet been reported in India. Infected babies, however, face a short life--nearly all die before reaching 2 years of age. Breast feeding is not a significant means of transmitting AIDS. The disease can spread only through sexual contact, use of infected syringe or transfusion of infected blood. Therefore, doctors, nurses and other paramedical staff in hospitals who may have to deal with AIDS patients need not fear the virus if they take adequate precautions. There is no known curative treatment for HIV infection causing AIDS, but improving literacy, avoiding sexual promiscuity and using condoms in heterosexual intercourse are positive steps in keeping HIV infection at a considerably low level.
The need for behavioral change of risky sexual practices has been of the highest priority since the onset of the AIDS epidemic. The major focus of education for safe sex has been emphasis on condom use. We surveyed 124 individuals applying to treatment for various chemical dependencies and 60 individuals applying for non-chemical-dependency medical treatment on various aspects of condom knowledge, history of use, and attitudes. Respondents reported that AIDS has motivated them to increase their use of condoms, however, only 13.9% always use them. Education is needed in the areas of increasing protection. Along with the use of a condom, the need for a reservoir tip and the risks associated with multiple sex partners should be stressed.
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The impact of the acquired immunodeficiency syndrome (AIDS) epidemic on a group of adolescents was investigated by surveying 197 sexually active, predominantly African-American, urban high school students. Reported sexual behavior changes were evaluated in relation to AIDS-related knowledge and attitudes. Over 50% of the students decreased their frequency of sexual activity, increased their condom use, and/or decreased their number of partners. These students had significantly higher scores on a measure of worry about vulnerability to human immunodeficiency virus (HIV) infection than those whose behavior had not changed. AIDS knowledge, AIDS beliefs, and AIDS-related anxiety interacted with gender to affect sexual behavior change. Male students reporting decreased frequency of sexual activity, for example, had more accurate beliefs about AIDS than males reporting no decrease. Among female students, however, those reporting decreased frequency had less accurate beliefs than those reporting no decrease. These results highlight the importance of considering gender and specific sexual behaviors when designing AIDS education interventions.
Because inconsistent condom use could put adolescent women at an increased risk for sexually transmitted diseases, it is important to understand when and with whom they use condoms. This study examined partner-specific condom use over time among adolescent women. The data were from a clinic-based, prospective study of 308 adolescent women who had at least one sex partner during a 6-month follow-up. Their condom use was examined with three types of partners: exclusive, nonexclusive primary, and nonexclusive secondary. Predictors of consistent condom use (using condoms 100% of the time with a specific partner) were explored in a multiple logistic regression analysis. Consistent condom use was more likely to occur in shorter relationships (less than 3 months) and with partners who preferred condoms for contraception. It was no more likely to occur with nonexclusive partners than with exclusive partners, and it was somewhat less likely to occur among consistent oral contraceptive users. These findings emphasize the importance of educating adolescent women to introduce and maintain condom use with all partners.
Unprotected sexual intercourse places a substantial number of adolescents at risk for sexually transmitted disease (STD) and human immunodeficiency virus (HIV) infection. While the most effective means of preventing STD/HIV infection among sexually active adolescents is consistent condom use, little is known about the factors that influence their consistent use among adolescents. This study of adolescents (n = 1049, mean age = 16.2 years) found that of the 266 teens who recently became sexually active, only 29% reported using condoms consistently. Consistent condom use was more frequent in males, those with little history of risk behavior and those with stronger intentions to use condoms in the future. Fear and anxiety of HIV, attitudes about risks other than HIV, and other safe behavior intentions were not significantly related to consistent condom use. Although intentions and recent behavior were significantly related, a different group of factors was found to predict intention to use condoms (e.g., perception of condom use by friends, general impulsive attitudes). Identifying and understanding the factors that influence adolescent sexual behavior and intentions is important for developing maximally effective HIV education/prevention programs.
Gender differences in knowledge, intentions, and behaviors regarding preventing pregnancies and sexually transmitted diseases were studied. Data for the study were collected from 1,033 students in 13 California high schools. Females in this sample were more likely than males to have discussed sexuality topics with parents, to have engaged in sexual intercourse more frequently, to have experienced a pregnancy scare, to have used oral contraceptives during their last sexual encounter, to perceive that a larger proportion of their peers were engaging in sex and using birth control, to obtain birth control from health facilities, and to report intentions to abstain or use protection in hypothetical situations placing them at risk for unprotected sex. In contrast, males reported that they were more likely to have always used birth control, to have used birth control during their first sexual encounter, and to have used a condom during their last sexual encounter. Furthermore, males were more likely to obtain birth control from a store or a friend. Finally, males knew more about using condoms correctly and their role in preventing sexually transmitted diseases. The efficacy of interventions designed to reduce unintended pregnancy and sexually transmitted diseases among adolescents may be increased by addressing these gender differences. Understanding gender differences may also facilitate an increased role for males in the overall prevention scheme. Further research is clearly needed to increase knowledge about these gender differences.
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We examined self-efficacy theory's ability to explain adolescents' intent to use condoms. In this study, 673 males and 404 females (mean age, 17.8 years) about to begin college, completed health surveys measuring self-efficacy regarding condom use. Perceived self-efficacy differed by gender and sexual experience. Regression analysis demonstrated that frequency of past condom use, perceived ability to talk with new partner about condoms and to enjoy sex using condoms explained 16% of sexually active males' intent to use condoms (p < 0.05). For sexually active females, explanators included frequency of past use and perceived ability to enjoy sex with condoms (R2 = 29.8%, p < 0.05). For never sexually active males, perceived ability to convince partner to use condoms and to buy condoms explained 16.1% of intent (p < 0.05); among never sexually active females, only perceived ability to convince partner to use condoms was significant (R2 = 6.2%, p < 0.05). Efforts to increase condom use should enhance perceptions of ability to negotiate aspects of condom use.
AIM: Nutritional depletion has been correlated with low plasma and mucosal glutamine concentrations and with increased intestinal permeability. Since nutritional depletion often is associated with (chronic) inflammatory stress, this study was designed to establish the influence of depletion and inflammation on glutamine concentrations and gut barrier function. METHODS: Anthropometric parameters were calculated from 26 patients who required artificial nutrition. Glutamine concentrations in plasma and gut mucosa, gut permeability and mucosal morphology were assessed. For determination of the degree of inflammation erythrocyte sedimentation rates and (pre)albumin concentrations were measured. On the basis of these parameters patients were divided into two groups having significant inflammatory stress or not. Similarly, a depleted and a non-depleted group was formed based on percentage ideal body weight, fat-free mass index (FFMI) and percentage weight loss. Glutamine concentrations, gut permeability and villus morphology were compared between the groups. RESULTS: The presence of inflammatory activity had significant negative effects on glutamine concentrations in contrast to the presence or absence of nutritional depletion. Similarly, intestinal permeability increased during active inflammation but not in depleted patients. FFMI but not inflammation was related to villus height. CONCLUSIONS: The presence of inflammation significantly affects glutamine concentrations and gut permeability, in contrast to the presence of depletion of body cell mass per se. On the other hand, villus morphology is not influenced by changes in systemic inflammatory activity whereas nutritional status possibly does affect villus height.
BACKGROUND: The evidence for the effectiveness of reattribution training are limited, and optimal service delivery is not yet established. OBJECTIVES: The objectives of this study were to establish the feasibility and to optimize the service delivery and design of a definitive randomized controlled trial (RCT) of reattribution training for patients with medically unexplained symptoms (MUSs) in routine primary care. METHODOLOGY: The study was of a cluster RCT design with the practice as the unit of randomization. Health facilitator (HF)-delivered reattribution training was compared with no reattribution training. The primary outcome measure used is doctor-patient communication in the consultation. Quantitative and qualitative methods identify barriers to effectiveness. The acceptability and feasibility of the intervention were established by attendance rates and postal survey after completion of training. RESULTS: Sixteen practices and 70 family practitioners (FPs) were recruited with representative practice and FP characteristics. Six hours of HF reattribution training to FPs in the workplace proved feasible and acceptable with all 35 FPs completing the training. Feedback from 27 (77%) FPs who received training indicated that 25 (93%) FPs believed that specific and relevant learning achievements were made, 22 (82%) felt more confident and 21 (77%) thought the training was useful. CONCLUSION: HF-delivered reattribution training to whole practices is feasible and acceptable, and its effectiveness is measurable in routine primary care.
BACKGROUND: Asthma is a common pediatric chronic disease and is estimated to account for more than 2million emergency department visits per year. Asthma guidelines have demonstrated improved outcomes, but remain underutilized due to several barriers. Computerized methods to automatically identify asthma exacerbations may be beneficial to initiate guideline recommended treatment, but have not been described. The goal of the study was to examine the accuracy of an algorithm to identify asthma patients at triage in real-time using only electronically available data. METHODS: During a 9-month period, the five most frequent presenting chief complaints for Emergency Department asthma patients aged 2-18 years were identified and accounted for >95% of asthma visits: wheezing, shortness of breath, fever, cough, and dyspnea. During a following 1-month period (November 2004), medical records of all patients with one of the five chief complaints were reviewed to establish a reference standard diagnosis. An asthma identification algorithm was developed that considered only data available in electronic format at the time of triage and included the presenting chief complaint, information from the computerized problem list (past medical history; current medications, such as beta-agonists, steroids, and other asthma medications), and ICD-9 billing codes from previous encounters. RESULTS: From 1835 Emergency Department visits, 368 visits (154 with asthma) had one of the five chief complaints and were included. A problem list was available in 203 (55.2%) and an ICD-9 code in 68 (18.5%) patients. Wheezing accounted for 56.5% of asthma visits, while fever was the most frequent chief complaint among all patients (43.8%). The asthma identification algorithm had a sensitivity of 44.8% (95% CI: 36.8-53.0%), a specificity of 91.6% (CI: 87.0-94.9%), a positive predictive value of 79.3% (CI: 69.3-87.3%) and a negative predictive value of 69.8% (CI: 64.0-75.1%). The positive and negative likelihood ratios were 5.3 (CI: 3.3-8.6) and 0.6 (CI: 0.5-0.7), respectively. CONCLUSION: The simple identification algorithm demonstrated good accuracy for identifying asthma episodes. The algorithm may represent a promising and feasible approach to create computerized reminders or automatic triggers that can facilitate the initiation of guideline-based asthma treatment in the Emergency Department.
A major challenge for successful cancer gene therapy is the development of safe and effective gene delivery vectors. Gene delivery vectors can be viral or nonviral. Among nonviral vectors various polymeric vectors have shown potential in gene delivery. However, much work needs to be done in order to correlate polymer structure with gene release at the target site and transfection efficiency. This article is a brief introduction into cancer gene therapy, barriers and methods for gene transfer with emphasis on the applications of recombinant polymers for cancer gene therapy.