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Objective: This study investigates HIV positive adolescents' health literacy and whether factors associated with health literacy in HIV-positive adults are associated with health literacy among HIV-positive adolescents., Methods: Adolescents in this study were behaviorally and perinatally HIV-infected youth (n=186) from five U.S. cities. Participants had a mean age of 20.5, and 49.5% were male., Results and Conclusions: Contrary to findings for adult HIV-positive patients, among adolescents health literacy was not significantly associated with: medication adherence adjusting for age and education level; viral load; or self-efficacy to adhere to medication regimens. The only significant association was of health literacy with medical care received., Practice Implications: Practice implications are discussed., (2009 Elsevier Ireland Ltd. All rights reserved.)

Background: Hyperphosphatemia underlies development of hyperparathyroidism, osteodystrophy, extraosseous calcification, and is associated with increased mortality in hemodialysis patients., Methods: To determine whether calcium acetate or sevelamer hydrochloride best achieves recently recommended treatment goals of phosphorus

Little is known about the impact of sexual or physical abuse history on response to alcohol treatment. This prospective study investigated the relationships between sexual and physical abuse histories, participants' characteristics, and response to inpatient alcohol treatment. Forty-one women and 59 men were assessed monthly for 1 year following hospitalization for alcohol dependence. Survival analyses showed that sexual abuse history was associated with shorter times to first drink and relapse. Physical abuse history was not associated with poorer drinking outcomes. Although women were more likely than men to have a history of sexual abuse, no gender differences were found in drinking outcomes. Poorer drinking outcomes were found among participants who at baseline were not married, had less than a college education, were not employed full time, or carried a diagnosis of depression or other psychiatric disorder. When adjusted for these characteristics, the associations between sexual abuse history and times to first drink and relapse were no longer statistically significant. While sexual abuse history is a clinically meaningful predictor of return to drinking we note the importance of considering patients' background and clinical characteristics in examining the impact of sexual abuse history on drinking outcomes following treatment.

Purpose: To investigate the association of psychological distress and health risk behaviors among HIV infected adolescents. It was hypothesized that higher levels of distress would be associated with increased sexual risk behaviors, and increased use of alcohol and drugs., Methods: HIV infected adolescents (N = 323) were recruited into an observational study in 15 clinical sites; for the 323 subjects, a total of 1212 visits were used in a repeated measures analysis. Data on depression (using the CES-D), anxiety (manifest anxiety scale), sexual behaviors and alcohol and marijuana use were obtained through computer-assisted self-administered interview., Results: Approximately 65% of the sample was sexually active across all six study visits, with approximately 43% consistently reporting having unprotected sex at last intercourse. Higher levels of depression were associated with frequent alcohol use and with unprotected sex at last intercourse, with depressed adolescents significantly more likely to have had unprotected sex than those who were not depressed. Health anxiety was associated with frequent marijuana use and with recent sexual activity, and physiological anxiety was also associated with recent sexual activity., Conclusions: Despite the fact that these HIV infected adolescents are all engaged in primary care, overall the sample is maintaining its high-risk sexual behavior. In addition, these adolescents may be self-medicating to deal with health-related anxiety. Health interventions for HIV infected adolescents should examine whether psychological distress is contributing to maintenance health risk behaviors.

Purpose: To compare characteristics of sexual relationships in HIV infected and HIV uninfected female adolescents and their association with condom use., Methods: HIV infected and uninfected subjects, aged 13-19 years, were enrolled in a prospective HIV study from 15 sites in 13 U.S. cities. Baseline data on demographic information, substance use, sexual behavior, partner information, and condom use were collected through direct and computer-assisted interviews from currently sexually active females. Univariate, multiple logistic regression, and repeated measures analyses were employed., Results: Data from 153 HIV infected and 90 HIV uninfected female subjects showed, on average, that current partners were 4-6 years older. In multivariate analysis, HIV infected subjects were older (OR = 1.37; 95% CI: 1.04-1.81), had more lifetime partners (OR = 2.23; 95% CI: 1.03-4.82), initiated consensual vaginal sex earlier (OR = .74; 95% CI:.58-.95), perceived partner to also be HIV infected (OR = 7.46; 95% CI: 3.2-17.4), and had less unprotected sex (OR = .27; 95% CI:.16-.45). Length of relationship was associated with more unprotected sex for both HIV infected and uninfected subjects (OR = 2.59, 95% CI: 1.27-5.27, OR = 4.13; 95% CI: 1.31-13.05, respectively). Mean partner age difference was greater among HIV infected than for HIV uninfected (OR = 1.06; 95%CI: 1.01-1.12); this greater age difference for HIV infected females was associated with less protection (OR = 1.09; 95% CI: 1.03-1.15). HIV disclosure influenced condom use: without disclosure, less condom use was reported (OR = 6.8; 95% CI: 2.29-20.24) controlling for perception that partner was also HIV infected (OR = 1.1; 95% CI: 1.02-1.21)., Conclusions: Because age differential influenced reported condom use, more research, particularly qualitative, is needed into the dynamics of these relationships. Prevention efforts must address partners, particularly older ones.

Purpose: To investigate the effects of life events, social support, and coping on anxiety and depression among human immunodeficiency virus (HIV)-infected adolescents. It was hypothesized that higher levels of stressful events would be associated with higher levels of anxiety and depression, but that this association would be moderated by satisfaction with social support and by adaptive coping., Methods: HIV-infected adolescents from 16 locations in 13 U.S. cities (N = 230, median age 16.09 years, standard deviation 1.2, range 13-19; 77% females) were recruited into the Reaching for Excellence in Adolescent Care and Health (REACH) project. REACH is the first large-scale disease progression study of HIV(+) adolescents infected through sexual behavior or injection drug use. The adolescent assessment was conducted by audio-computer assisted self-interview. Least squares regressions were used to test hypotheses., Results: Life events with high impact were associated with higher levels of depression and anxiety. Frequently reported events included: being prescribed medications (74%), family financial problems (61%), and parental alcohol abuse (20%). Contrary to expectations, the buffering hypotheses of social support and adaptive coping were not supported. Satisfaction with social support and adaptive coping methods were both associated directly with lower levels of depression, but no association was detected between these two measures and anxiety., Conclusions: Although life event distress was directly associated with psychological distress, neither social support nor adaptive coping seemed to moderate this association. However, both satisfaction with support and adaptive coping were associated directly with depression in HIV-infected adolescents.

Objective: Intrapartum events may play a role in determining the likelihood of vertical transmission of human immunodeficiency virus-1. Timing and duration of rupture of membranes have been shown to modify transmission risk of other organisms but have not been examined for human immunodeficiency virus. This study was undertaken to assess the relationship between duration of rupture of membranes, maternal immune status, and transmission of human immunodeficiency virus., Methods: The Mothers' and Infants' Cohort Study enrolled 207 human immunodeficiency virus-positive women and their infants at five study sites in Brooklyn and the Bronx, New York between January 1986 and January 1991. One hundred twenty-seven woman-infant sets for whom antepartum CD4+ levels were available, the infant's human immunodeficiency virus infection outcome was known, and the duration of ruptured membranes could be determined were included in this analysis., Results: Thirty of the 127 evaluable infants (24%) were infected. Women with low CD4+ levels (< 20%) were significantly more likely to transmit the virus if rupture of membranes was > or = 4 hours (relative risk 4.53, 95% confidence interval 1.14 to 1.81, p = 0.02). The same association was not observed among women with higher CD4+ levels (relative risk 1.11, 95% confidence interval 0.52 to 2.69, p = 0.69). No association with the duration of labor or mode of delivery was seen., Conclusions: In this urban North American cohort women with low CD4+ levels were significantly more likely to transmit human immunodeficiency virus to their offspring if the duration of rupture of membranes was > or = 4 hours.

Previous in vitro and in vivo 31P MRS studies of Alzheimer's disease patients have revealed alterations in membrane phospholipid metabolism and PET studies have shown alterations in glucose and oxidative metabolism. This study of probable Alzheimer's disease patients demonstrates severity dependent alterations in measures of both high-energy phosphate and membrane phospholipid metabolism. Mildly demented Alzheimer's patients compared to the controls, have increases in the levels of phosphomonoesters, decreases in the levels of phosphocreatine and probably adenosine diphosphate, and an increased oxidative metabolic rate. As the dementia worsens, the levels of phosphocreatine and adenosine diphosphate increase, the levels of phosphomonoesters decrease, and the oxidative metabolic rate decreases. The phosphomonoester findings replicate previous findings and provide a new dimension to the molecular pathology of Alzheimer's disease, implicating basic defects in membrane metabolism. The changes in oxidative metabolic rate suggest the AD brain is under energetic stress. The changes in energy metabolites with increasing dementia could be a consequence of nerve terminal degeneration and are consistent with previous PET findings. 31P MRS provides new diagnostic and metabolic insights into this disease and would be a noninvasive method to follow the progression of the disease and the metabolic response to therapeutic interventions.

Prerandomization renal biopsy specimens were examined in 102 patients upon entry into prospective therapeutic trials of lupus nephritis in an attempt to identify early predictors of renal failure outcome. All 11 renal failures occurred among the 72 individuals with diffuse proliferative or membranoproliferative glomerulonephritis (DPGN/MPGN); thus, these patients were at modestly, but significantly, increased risk of endstage renal disease compared to those with focal proliferative, membranous, or mesangial glomerulonephritis. Considering the low incidence of endstage renal disease among patients with DPGN/MPGN, we sought to refine the prognostic information obtained from renal morphology by semiquantitative scoring of individual histologic features and by derivation of composite histologic scores specified by Activity (AI) and Chronicity (CI) Indices. Among the 72 patients with DPGN/MPGN, the composite AI was more strongly predictive of renal failure than were the individual active histologic features; cellular crescents and extensive fibrinoid necrosis yielded positive associations, while endocapillary proliferation, leucocytic exudation, and hyaline thrombi in glomeruli and interstitial inflammation by themselves did not emerge as useful prognostic indicators. However, chronicity items (glomerular sclerosis, fibrous crescents, tubular atrophy, and interstitial fibrosis) considered individually, as well as in the composite CI, were highly predictive of renal failure outcome. Particularly striking was the prognostic value of tubular atrophy; all 11 renal failures were among the 43 patients with tubular atrophy on prerandomization renal biopsy. While no single pathologic variable improved outcome predictions among those with tubular atrophy, examination for interactions among variables revealed that glomerular sclerosis and cellular crescents had a synergistic effect which augmented the prognostic information derived from analysis of tubular atrophy alone.(ABSTRACT TRUNCATED AT 250 WORDS)