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Biomedical subjects

David Pugatch

Publications and source records attributed to David Pugatch.

14 recordsLinked to original sources

Etiology of chronic diarrhea in antiretroviral-naive patients with HIV infection admitted to Norodom Sihanouk Hospital, Phnom Penh, Cambodia.

BACKGROUND: Although both human immunodeficiency virus (HIV) infection and diarrhea are considerable problems in Cambodia, there have not been any studies to determine the history, clinical presentation, and etiology of chronic diarrhea in patients with HIV infection in Cambodia. In this article, we present a case-control study involving 40 HIV-infected patients with chronic diarrhea and 40 HIV-infected patients without diarrhea. METHODS: Clinical, demographic, and laboratory data were collected. Stool samples were examined for parasites, including Cryptosporidium species (by partial acid-fast stain), bacterial pathogens, and rotavirus. Samples from 10 case patients and 10 control subjects were also analyzed for Cryptosporidium species by polymerase chain reaction-restriction fragment-length polymorphism. RESULTS: The median CD4(+) cell count was 11.5 cells/mm(3). A potential pathogen was found in 30 case patients (75%) and 29 control subjects (72.5%). Cryptosporidium was the most common pathogen, present in 16 case patients (40%) and 20 control subjects (53.3%). The presence of Cryptosporidium was confirmed by polymerase chain reaction-restriction fragment-length polymorphism, with a prevalence of 40% in each of the 2 groups of 10 subjects who were enrolled for Cryptosporidium evaluation. CONCLUSIONS: Subjects in this cohort had severe immunosuppression. The prevalence of pathogens, including Cryptosporidium, was extremely high but did not differ significantly between the case patients with diarrhea and the control subjects without diarrhea. Further studies are needed to examine factors associated with Cryptosporidium carriage and the natural history of asymptomatic infection.

AIDS-Related Opportunistic Infections↗

Condom use with "casual" and "main" partners: what's in a name?

OBJECTIVE: This study examined adolescents' attitudes about and behaviors toward condom use with "casual" vs. "main" sexual partners. METHOD: Participants were sexually active adolescents aged 15-21 years (n = 1316) recruited from primary care clinics and through outreach activities in three major cities in the United States. Assessment of condom use within the past 90 days, relevant attitudes, substance use, and demographic data were obtained via audio computer-assisted self-interview (ACASI). RESULTS: Participants were divided into two groups: the 65% who reported main partners only (MP group) and the 35% who had at least one casual partner (CP group). Adolescents in the MP group were more likely to be female, whereas males were significantly more likely to report casual partners. Race/ethnicity, age, education level, household income, and sexually transmitted infection (STI) history were unrelated to group status (i.e., sexual partner type). Greater substance use and riskier attitudes were reported by teens in the CP group. The number of unprotected sex acts in the past 90 days was substantial and equivalent between the main and casual partner groups (19.2 vs. 21.5, respectively). Regression analyses revealed that perceptions of main partner attitudes toward condom use and condom use expectations were significantly related to condom use with MPs, but that attitudes were not related to condom use with CPs. CONCLUSIONS: Adolescents with either casual or main partners may be at continued risk for contracting human immunodeficiency virus (HIV) and STIs, given high rates of unprotected sex. Interventions that do not target attitudes and practices related to casual partners as compared with main partners may miss an opportunity to change risk behaviors. This study demonstrates the importance of understanding an adolescent's perception of partner types in order to design effective interventions.

Adolescent↗

Depressive symptoms as a predictor of sexual risk among African American adolescents and young adults.

PURPOSE: To understand the prospective relationship between depressive symptoms and sexual risk behavior among a community sample of African American adolescents. METHODS: African American adolescents (n = 415) who participated in a larger multi-site human immunodeficiency virus (HIV) prevention program provided baseline data on demographics, psychosocial context and depressive symptoms. At six-month follow-up, data were collected regarding sexual activity in the past 90 days. Multivariate logistic regression was conducted to determine the prospective relationship between depressive symptoms and proportion of condom use while controlling for relevant demographic and contextual factors. RESULTS: The odds that African American adolescents who reported depressive symptoms at baseline would report inconsistent condom use at six-month follow-up was approximately four times greater than that of their peers who did not report depressive symptoms. Older adolescents and females were less likely to use condoms consistently and certain contextual factors, such as less pleasurable expectations about condom use, and living with a partner also heightened HIV/STI risk. CONCLUSIONS: Clinicians should assess for depression symptoms in African American adolescent patients as an indicator of future sexual risk. Prevention interventions that address depressed mood could have a significant impact on later HIV/STI sexual risk behaviors. Further research is needed to understand the effect of depressive symptoms on sexual risk among adolescents of other race/ethnicities and to examine the potential cultural forces that affect this relationship.

Adolescent↗

HIV and HCV testing for young drug users in Rhode Island.

Young injection drug users (IDU) are at risk for both human immunonodeficiency virus (HIV) and Hepatitis C infections (HCV). Rates of HIV testing have been widely documented, but limited information exists regarding HCV screening rates. Among a community sample of 86 IDUs, aged 18-25 years in Rhode Island, 87.2% reported ever testing for HIV versus 51.2% for HCV (p < .001). Young injectors were under-screened for HCV compared with the far less prevalent HIV infection.

Adolescent↗

Correlates of condom failure among adolescent males: an exploratory study.

OBJECTIVE: To identify the prevalence and correlates of condom failure (defined as breakage or slipping off in the past 90 days) among a sample of adolescent males (15 to 21 years of age). DESIGN: A cross-sectional study of 481 condom-using males residing in three US cities (Atlanta, GA, Providence RI, Miami FL). Data were collected, in the years 2000 and 2001, using audio computer-assisted self-interviewing technology. Prevalence ratios were used to determine the strength and significance of bivariate associations between ten assessed correlates and condom failure. Correlates achieving a screening level of significance were entered into a multivariate model that was used to calculate adjusted odds ratios (AOR). RESULTS: Recent condom failure was reported by 34.1%. Younger adolescents were about one-third less likely to report condom failure (AOR = 0.66; P = 0.4). Adolescents reporting multiple sex partners were about 80% more likely to report failure (AOR = 1.84; P = 0.09). Adolescents indicating they had sex with someone on the same day they met the person were about 80% more likely to report failure (AOR = 1.77; P = 0.02). Finally, adolescents indicating recent problems obtaining condoms were about 70% more likely to report failure (AOR = 1.69; P = 0.1). Failure was not less common among those reporting a history of STD infection or those ever impregnating a partner. CONCLUSION: Because adolescent males may commonly experience condom failure, targeted clinic- and community-based programs designed to reduce user error could be an important aspect of preventing pregnancy and the spread of STDs.

Adolescent↗

"Islands of Risk": subgroups of adolescents at risk for HIV.

OBJECTIVE: To use cluster analysis to determine profiles of adolescents at risk for HIV. METHODS: Adolescents 15-21 years old (N = 1153) with a history of unprotected sex were assessed in five domains of risk (unprotected sex, alcohol/marijuana use, other drug use, mental health crises, and arrest/school dropout) as well as demographic, contextual, and behavioral variables. RESULTS: Cluster analysis revealed separate three-cluster solutions for males and females. Among males, clusters were characterized by (a) mental health crises and unprotected sex, (b) alcohol/marijuana use and unprotected sex, and (c) lower risk. Among females, clusters were distinguished by (a) unprotected sex, (b) substance use and mental health crises, and (c) lower risk. Cluster membership was associated with secondary variables related to sexual risk. CONCLUSIONS: Even within populations of high-risk adolescents, subgroups exist for which specific risk factors co-occur, particularly unprotected sex, mental health crises, and substance use. These patterns suggest that effective HIV prevention interventions may need to target the association between mental health and/or substance abuse with sexual risk for some adolescents.

Adolescent↗

Condom failure among adolescents: implications for STD prevention.

This study of 921 adolescents found condom failure (past 90 days) was experienced by at least one-third of the sample, regardless of gender. Frequency of condom failure was positively associated with STD diagnosis (AOR = 1.22, 95% CI = 1.01-1.48), with the odds of testing positive increasing 22% for each added event of failure.

Adolescent↗

Failure of serial human immunodeficiency virus type 1 DNA polymerase chain reactions to identify human immunodeficiency virus type 1 clade A/G.

The most commonly used test to screen for human immunodeficiency virus type 1 (HIV-1) infection in HIV-exposed infants in the United States is HIV-1 qualitative DNA polymerase chain reaction (PCR). However, the commercially available HIV-1 DNA PCR lack optimal sensitivity to detect non-subtype B subtypes of HIV-1. We report here HIV-1 infection in a West African infant that went undetected by serial HIV-1 DNA PCR tests.

Adolescent↗

Associations between sexually transmitted disease diagnosis and subsequent sexual risk and sexually transmitted disease incidence among adolescents.

BACKGROUND: Empiric evidence is lacking in regard to the subsequent sexually transmitted disease (STD)-associated risk behaviors of adolescents diagnosed and treated for an STD. GOAL: The goal of this study was to prospectively identify associations between STD diagnosis and subsequent sexual risk and STD incidence among a sample of U.S. adolescents. STUDY DESIGN: A cohort of 455 adolescents (age 15-21 years) was followed for 3 months. Adolescents were recruited from primary care clinics and through outreach activities. RESULTS: A total of 10.8% were initially diagnosed with at least one STD. After adjusting for observed covariates, these adolescents (compared with those testing negative) were 2.8 times (P = 0.0001) more likely to be abstinent from sex and 2.2 times more likely to report always using condoms (P = 0.04). However, during the ensuing 3 months, they were approximately 2.4 times more likely to report having sex with multiple partners (P = 0.01), 8.9 times more likely to test positive for trichomonas (P = 0.009), and 3.0 times more likely to test positive for chlamydia (P = 0.04). CONCLUSIONS: Compared with those testing negative, adolescents diagnosed with an STD may subsequently adopt safer sex behaviors, including abstinence. However, perhaps in part as a result of having sex with multiple partners, they might fail to practice safer sex behaviors stringently enough to avoid subsequent STD acquisition.

Adolescent↗

Spectrum of opportunistic infections in hospitalized HIV-infected patients in Phnom Penh, Cambodia.

The aim of the study was to provide more comprehensive data on the clinical characteristics of hospitalized AIDS patients in Cambodia. Chart review of 381 HIV-infected patients admitted to a public hospital in Phnom Penh, Cambodia between December 1999 and May 2000 was performed. The in-hospital mortality rate was 43.6%. Approximately 50% of patients had two or more concurrent illnesses. Very advanced HIV disease was common, with CD4 cell counts below 10 cells/mm(3) in 43.2%. Only 28.3% of the patients had documentation of their HIV infection prior to hospitalization. Chronic diarrhoea was the most frequent opportunistic illness (41.2%), followed by tuberculosis (26%), cryptococcal meningitis (12.6%), Pneumocystis carinii pneumonia (8.4%), and encephalitis (4.7%). Chronic diarrhoea and tuberculosis were the most important opportunistic infections observed in HIV-infected hospitalized patients in Cambodia. These findings illustrate the need for early diagnosis of HIV-infection, effective prophylaxis for opportunistic infections and improved access to antiretroviral therapy in Cambodia.

AIDS-Related Opportunistic Infections↗

Acceptability of sexually transmitted infection screening among women in short-term substance abuse treatment.

BACKGROUND: Substance abuse treatment centers provide an opportunity to offer sexually transmitted infection (STI) screening to a high-risk and hard-to-reach population. GOAL: The goal was to assess STI prevalence, risk factors, and acceptability of STI screening among females at substance abuse treatment centers with use of urine testing by ligase chain reaction and self-collected swab specimens. STUDY DESIGN: Adult, female inpatients were offered free testing and treatment for chlamydia infection, gonorrhea, and trichomonas infection. Interviews were conducted to collect risk behavior data. RESULTS: Eighty-six percent of inpatients (180/209) accepted testing. Twenty-three percent (41/177) had an STI. Of those with an STI, 90% (37/41) had trichomonas infection. All 41 infected patients received treatment. Drug use before sex, exchange of sex for money/drugs, and any gynecological complaint were significantly associated with infection. Most women were uninsured (76%). Only 45% had undergone a medical examination in the past year. CONCLUSION: STI screening is highly acceptable among women in substance abuse treatment centers. Substance users are at high risk for STIs and may not otherwise receive medical care.

Adolescent↗

Gender Differences in HIV Risk Behaviors among Young Adults and Adolescents Entering a Massachusetts Detoxification Center.

We examined gender differences in HIV risk behaviors among young substance abusers 17 through 25 years of age. A voluntary and confidential survey inquiring about HIV-related risk behaviors was administered to clients (N = 200 respondents) on intake at a drug detoxification center in Massachusetts. Female respondents were more likely than males to report having shared their needles (p < 0.01), having had sex in exchange for drugs or money (p < 0.01), sex with an HIV-infected partner (p < 0.01), and sex with an injection-drug user (p < 0.01). They were also more likely to report having been diagnosed with an STD (p < 0.01). Nineteen percent of females (compared to 32% of males) reported always having used condoms for vaginal sex (p = 0.08), and 16% of females compared to 35% of males reported always having used condoms for anal sex (p = 0.06). In our cohort of substance-abusing youth, adolescent and young adult females were more likely than males to report unsafe injection-drug use and sexual practices. The results of this study suggest that programs designed to decrease HIV risk among high-risk substance abusers in detoxification centers should be gender specific.

Journal Article↗