High rate of missed HIV infections in individuals with indeterminate or negative HIV western blots based on current HIV testing algorithm in China.

It remains unclear if China's current HIV antibody testing algorithm misses a substantial number of HIV infected individuals. Of 196 specimens with indeterminate or negative results on HIV western blot (WB) retrospectively examined by HIV-1 nucleic acid test (NAT), 67.57% (75/111) of indeterminate WB samples, and 16.47% (14/85) of negative WB samples were identified as NAT positive. HIV-1 loads in negative WB samples were significantly higher than those in indeterminate WB samples. Notably, 86.67% (13/15) of samples with negative WB and double positive immunoassay results were NAT positive. The rate of HIV-1 infections missed by China's current HIV testing algorithm is unacceptably high. Thus, China should consider using NAT or integrating fourth generation ELISA into current only antibodies-based HIV confirmation. J. Med. Virol. 88:1462-1466, 2016. © 2016 Wiley Periodicals, Inc.

Risks and benefits of splenectomy versus no splenectomy for hereditary spherocytosis--a personal view.

Splenectomy is indicated in hereditary spherocytosis to relieve symptoms due to anaemia or splenomegaly, reverse growth failure or skeletal changes due to over-robust erythropoiesis, and prevent recurrent gallstones. A life-long risk of bacterial infection has been recognised for many years as a concomitant cost of splenectomy. The scope of this risk has expanded to include a number of organisms beyond the triad of pneumococcus, meningococcus, and haemophilus influenzae. Recently, it has been demonstrated that splenectomy also confers a significant risk of delayed adverse vascular events in patients with hereditary spherocytosis, just as it does in patients undergoing splenectomy for other indications. Further, these same studies demonstrated a benefit of avoiding splenectomy: hereditary spherocytosis patients with a spleen have significantly fewer adverse vascular events than unaffected family members, probably because of the protective effect of chronic, mild anaemia. Accordingly, this review marshals the evidence favouring a conservative approach to splenectomy in spherocytosis.

Predictors of sharing drugs among injection drug users in the South Bronx: implications for HIV transmission.

HIV may be transmitted in the process of sharing injected drugs, even if all participants have their own syringes. In an effort to gain understanding of the extent and predictors of drug sharing, data were obtained via personal interviews with 1,024 injection drug users from four neighborhoods in the South Bronx. The relationship between drug-sharing and demographic, sexual, and drug-related variables was first examined in a bivariate analysis, and then via multiple logistic regression. Individuals who split drugs were more likely to be female, have had sex with a casual partner, exchanged sex for drugs or other needs, recently smoked crack cocaine, and shared needles. They were less likely to live or inject at their own home or have used a new needle the last time they injected. In a final logistic model, correlates of drug sharing included trading sex, injecting outside one's home, and using borrowed, rented or shared needles. Despite the lack of significance for gender in the final logistic model, females were at high risk of drug sharing because they constituted the great majority of those who exchanged sex. Continuing research is needed to understand how drug-sharing contributes to the spread of HIV and other infections, as are studies of approaches to reducing drug sharing. Prevention strategists and outreach organizations should be aware of the HIV risks inherent in the widespread practice of drug sharing.

Examining drug treatment program entry of injection drug users: human capital and institutional disaffiliation.

Logistic regression analysis was used to examine the likelihood of either entering residential treatment, methadone treatment or solely entering detoxification programs for 32,173 injection drug users (IDUs) using drug treatment in Massachusetts, 1996-1999. Those IDUs who were employed, more educated, health-insured, not homeless and who resided with their children were less likely to solely enter detoxification programs. This population, with more human capital and lower levels of institutional disaffiliation, was also more likely to enter methadone maintenance programs. These results were consistent for two groups of drug users: those who reported having injected in the past year and those with a history of injecting who had not injected in the past year. Overall, the findings demonstrate a need for more complex drug treatment program planning efforts that also respond to issues of employment, education and social isolation.

Sex work and its associations with alcohol and methamphetamine use among female bar and spa workers in the Philippines.

To assess the prevalence of sex work and its associations with substance use among female bar/spa workers in the Philippines (N = 498), workers from 54 bar or spa venues in Metro Manila (2009-2010) were surveyed on demographics, drug/alcohol use, abuse history, and sex work. Their median age was 23 years and 35% engaged in sex work. Sex work was independently associated with methamphetamine use (19% vs 4%; adjusted odds ratio [AOR] =2.9, 95% confidence interval [CI] = 1.3-6.2), alcohol use with patrons (49% vs. 27%; AOR = 1.9, 95% CI = 1.1-3.4), and alcohol intoxication during sex (50% vs. 24%; AOR = 2.0, 95% CI = 1.2-3.5), but inversely associated with daily alcohol use (13% vs. 16%; AOR = 0.2, 95% CI = 0.1-0.5). Additional significant covariates included sexual abuse history, younger age, and not having a higher education. Findings suggest that interventions with sex workers in bars and spas should focus on methamphetamine use, alcohol use contexts, and violence victimization, to better meet the needs of this population.

Treatment adherence and health outcomes in MSM with HIV/AIDS: patients enrolled in "one-stop" and standard care clinics in Wuhan China.

BACKGROUND: Conducted in Wuhan China, this study examined follow-up and health markers in HIV patients receiving care in two treatment settings. Participants, all men who have sex with men, were followed for 18-24 months. METHOD: Patients in a "one-stop" service (ACC; N = 89) vs those in standard care clinics (CDC; N = 243) were compared on HIV treatment and retention in care outcomes. RESULTS: Among patients with CD4 cell count ≦350 cells/µL, the proportion receiving cART did not differ across clinic groups. The ACC was favored across five other indicators: proportion receiving tests for CD4 cell count at the six-month interval (98.2% vs. 79.4%, 95% CI 13.3-24.3, p = 0.000), proportion with HIV suppression for patients receiving cART for 6 months (86.5% vs. 57.1%, 95% CI 14.1-44.7, p = 0.000), proportion with CD4 cell recovery for patients receiving cART for 12 months (55.8% vs. 22.2%, 95% CI 18.5-48.6, p = 0.000), median time from HIV confirmation to first test for CD4 cell count (7 days, 95% CI 4-8 vs. 10 days, 95% CI 9-12, log-rank p = 0.000) and median time from first CD4 cell count ≦350 cells/µL to cART initiation (26 days, 95% CI 16-37 vs. 41.5 days, 95% CI 35-46, log-rank p = 0.031). Clinic groups did not differ on any biomedical indicator at baseline, and no baseline biomedical or demographic variables remained significant in the multivariate analysis. Nonetheless, post-hoc analyses suggest the possibility of self-selection bias. CONCLUSIONS: Study findings lend preliminary support to a one-stop patient-centered care model that may be useful across various HIV care settings.

The 100% Condom Use Program: a demonstration in Wuhan, China.

The 100% Condom Use Program (100% CUP) was evaluated in Wuhan, China. The program sought to increase knowledge of STI/HIV transmission, increase condom use rates, and reduce the prevalence of sexually transmitted infections (STIs) among sex workers (commercial sex workers (CSWs)), via condom availability and use policies in entertainment establishments and STI services including education and counseling. Entertainment establishment owners and CSWs participated in educational sessions and multiple community sectors were involved in the program. At baseline, 170 female CSWs were assessed, and 102 CSWs were assessed at the final 21-month follow-up. At 6-month follow-up, 95% of entertainment establishments were in compliance with 100% CUP policies. At 15 months, condoms were readily available in retail outlets, and condom use rates rose by 94.5%. Refractive rates of chlamydia and methodological limitations of the evaluation leave unanswered questions about the effectiveness of the program. Nonetheless, outcomes suggest that the 100% CUP may be a promising approach to HIV prevention in China.

Client factors associated with length of stay in methadone treatment among heroin users who inject drugs: quantitative analysis of state-level substance abuse treatment utilization data.

The objective of this study was to examine, for a population of 8,258 adult injection drug users (IDUs) who all had entered a Massachusetts licensed methadone maintenance treatment program (MMT) between 1996 and 2002, client factors associated with remaining in MMT for a minimum of 1 year after program entry. Two binomial logistic regression models were developed. The first model examined the association between age, sex, race/ethnicity, parental status, employment status, educational status, health insurance status, homelessness status, having injected drugs in the past month, residential treatment use, number of overall treatment admissions, and whether a client's longest consecutive stay in MMT had lasted for 1 year or more. Second, to examine the stability of the statistical relationships identified in the first logistic regression model, a second logistic regression model examined whether there were significant differences in client level characteristics between those who used MMT for 6 months or less compared with their counterparts. Those who were older, women, those who were not homeless, those who resided with their children, those who had public health insurance, and those who had not used residential treatment were significantly more likely to have stayed in MMT for at least 1 year or more. In contrast, those who were younger, males, homeless, did not live with children, had no insurance, and had used residential treatment were significantly more likely to have stayed in MMT for 6 months or less compared with their counterparts. Those who stayed in MMT for 1 year or more were more likely to have stable lives compared with those who dropped out of MMT before a year. Providing services to improve MMT clients' employment, housing, and family stability may help improve MMT retention rates. Second, clients with a history of having used residential substance abuse treatment were more likely to stay in MMT for a shorter time period compared with their counterparts. The extent to which treatment bifurcation is a matter of choice or related to other factors needs to be further explored.

Arteriosclerotic events are less frequent in persons with chronic anemia: evidence from families with hereditary spherocytosis.

Because anemic persons have lower cholesterol and whole blood viscosity than those who are not anemic, we hypothesized that subjects with hereditary spherocytosis who have not had the spleen removed should have fewer arteriosclerotic events than unaffected family members. We defined arteriosclerotic events as myocardial infarct, stroke, coronary artery surgery, and carotid artery surgery. We compared the rate of these events in affected-not splenectomized persons to the rate in unaffected family members. The relative risk of an arteriosclerotic event in hereditary spherocytosis patients with a spleen was one fifth that in unaffected family members. These data support the hypothesis that chronic anemia retards the development of arteriosclerosis. Spherocytosis is another example of an inherited condition that conveys an advantage in one system and a disadvantage in another.

Evidence-based drug treatment practice and the child welfare system: the example of methadone.

This article examined the extent to which methadone maintenance (MM) is considered a treatment alternative for drug-dependent parents, as reflected in the social work and child welfare literature and in child welfare policies. Findings were derived from a review of 15 social work journals published from 1996 through 2002 and from a review of child welfare policies in 27 states in regard to treatment recommendations for substance-abusing parents. These reviews found that 23 articles focused on child welfare-substance abuse issues; no article specifically discussed MM as a treatment option for heroin-using parents; and of the 27 states, only three included methadone as a treatment option in their child welfare policy recommendations. Practice and policy recommendations are discussed.

Parental status of women injection drug users and entry to methadone maintenance.

This article examines patterns of methadone maintenance treatment entry among 9018 adult women injection drug users (IDUs), with special attention to parental-status differences. The data originate from a statewide drug-treatment database covering all women IDUs who entered drug treatment in the State of Massachusetts over a four-year period. Through the use of logistic regression analysis, the study found that among these women IDUs, those who resided with their children were significantly more likely to enter methadone maintenance than women who were mothers but did not reside with their children. Mothers residing with their children were 73% more likely to enter methadone maintenance than mothers who do not reside with their children. The authors discuss specific programmatic and policy implications including the need to determine whether methadone maintenance should be promoted as an alternative drug treatment option in order to preserve family unification or promote family reunification.