43 research outputs found
Risk factors for strong regret and subsequent IVF request after tubal sterilisation
A case control study was done to examine presterilisation characteristics most consistently associated with strong poststerilisation regret and subsequent request for IVF. The case group was made up of 97 previously sterilised women evaluated for IVF treatment at the Fertility Clinic or Royal North Shore Hospital in Sydney during the period 1980-1992. A Control group of 101 women apparently satisfied with their tuballigation was found from the medical records of one gynaecologist at Royal North Shore Hospital. Of the characteristics that could be objectively determined preoperatively only age, number of living children, timing of sterilisation and marital status were significantly associated with IVF request in the univariate analysis. These characteristics were, then, examined multivariately by means of logistic regression. Age at the time of sterilisation had the most pronounced effect on strong regret. Women who were younger than 30 years old at the time of sterilisation had up to 8.7 times the risk of request for IVF treatment as women 30 to 34 years old. A concurrent caesarean section was associated with a threefold risk relative to an interval procedure, but there was no significant effect associated with sterilisation performed after vaginal delivery or abortion. A strong protective effect (OR=0.07) was found for women with more than 2 children compared to childless women. There was no longer a significant effect of marital status in the multivariate analysis. Other factors not significantly associated with the request for IVF included history of abortion, education, race, the principal method of contraception used before sterilisation, and medical indications for sterilisation. The overwhelming reasons stated by women for requesting IVF were change in marital status, either remarriage or the establishment of a new de facto relationship, and the desire to have a child with the new partner
Risk factors for strong regret and subsequent IVF request after tubal sterilisation
A case control study was done to examine presterilisation characteristics most consistently associated with strong poststerilisation regret and subsequent request for IVF. The case group was made up of 97 previously sterilised women evaluated for IVF treatment at the Fertility Clinic or Royal North Shore Hospital in Sydney during the period 1980-1992. A Control group of 101 women apparently satisfied with their tuballigation was found from the medical records of one gynaecologist at Royal North Shore Hospital. Of the characteristics that could be objectively determined preoperatively only age, number of living children, timing of sterilisation and marital status were significantly associated with IVF request in the univariate analysis. These characteristics were, then, examined multivariately by means of logistic regression. Age at the time of sterilisation had the most pronounced effect on strong regret. Women who were younger than 30 years old at the time of sterilisation had up to 8.7 times the risk of request for IVF treatment as women 30 to 34 years old. A concurrent caesarean section was associated with a threefold risk relative to an interval procedure, but there was no significant effect associated with sterilisation performed after vaginal delivery or abortion. A strong protective effect (OR=0.07) was found for women with more than 2 children compared to childless women. There was no longer a significant effect of marital status in the multivariate analysis. Other factors not significantly associated with the request for IVF included history of abortion, education, race, the principal method of contraception used before sterilisation, and medical indications for sterilisation. The overwhelming reasons stated by women for requesting IVF were change in marital status, either remarriage or the establishment of a new de facto relationship, and the desire to have a child with the new partner
Counting the cost: estimating the number of deaths among recently released prisoners in Australia
Objective: To estimate the number of deaths among people released from prison in Australia in the 2007â08 financial year, within 4 weeks and 1 year of release. Design, participants and setting: Application of crude mortality rates for ex-prisoners (obtained from two independent, state-based record-linkage studies [New South Wales and Western Australia]) to a national estimate of the number and characteristics of people released from prison in 2007â08. Main outcome measures: Estimated number of deaths among adults released from Australian prisons in 2007â08, within 4 weeks and 1 year of release, classified by age, sex, Indigenous status and cause of death. Results: It was estimated that among people released from prison in 2007â08, between 449 (95% CI, 380â527) and 472 (95% CI, 438â507) died within 1 year of release. Of these, between 68 (95% CI, 56â82) and 138 (95% CI, 101â183) died within 4 weeks of release. Most of these deaths were not drug-related. Conclusion: The estimated annual number of deaths among recently released prisoners in Australia is considerably greater than the annual number of deaths in custody, highlighting the extreme vulnerability of this population on return to the community. There is an urgent need to establish a national system for routine monitoring of ex-prisoner mortality and to continue the duty of care beyond the prison walls
Meta-analysis of drug-related deaths soon after release from prison
Aims The transition from prison back into the community is particularly hazardous for drug-using offenders whose tolerance for heroin has been reduced by imprisonment. Studies have indicated an increased risk of drug-related death soon after release from prison, particularly in the first 2 weeks. For precise, up-to-date understanding of these risks, a meta-analysis was conducted on the risk of drug-related death in weeks 1 + 2 and 3 + 4 compared with later 2-week periods in the first 12 weeks after release from prison. Methods English-language studies were identified that followed up adult prisoners for mortality from time of index release for at least 12 weeks. Six studies from six prison systems met the inclusion criteria and relevant data were extracted independently. Results These studies contributed a total of 69 093 person-years and 1033 deaths in the first 12 weeks after release, of which 612 were drug-related. A three- to eightfold increased risk of drug-related death was found when comparing weeks 1 + 2 with weeks 3â12, with notable heterogeneity between countries: United Kingdom, 7.5 (95% CI: 5.7â9.9); Australia, 4.0 (95% CI: 3.4â4.8); Washington State, USA, 8.4 (95% CI: 5.0â14.2) and New Mexico State, USA, 3.1 (95% CI: 1.3â7.1). Comparing weeks 3 + 4 with weeks 5â12, the pooled relative risk was: 1.7 (95% CI: 1.3â2.2). Conclusions These findings confirm that there is an increased risk of drug-related death during the first 2 weeks after release from prison and that the risk remains elevated up to at least the fourth week
The IeDEA Harmonist Data Toolkit: A Data Quality and Data Sharing Solution for a Global HIV Research Consortium.
We describe the design, implementation, and impact of a data harmonization, data quality checking, and dynamic report generation application in an international observational HIV research network. The IeDEA Harmonist Data Toolkit is a web-based application written in the open source programming language R, employs the R/Shiny and RMarkdown packages, and leverages the REDCap data collection platform for data model definition and user authentication. The Toolkit performs data quality checks on uploaded datasets, checks for conformance with the network's common data model, displays the results both interactively and in downloadable reports, and stores approved datasets in secure cloud storage for retrieval by the requesting investigator. Including stakeholders and users in the design process was key to the successful adoption of the application. A survey of regional data managers as well as initial usage metrics indicate that the Toolkit saves time and results in improved data quality, with a 61% mean reduction in number of error records in a dataset. The generalized application design allows the Toolkit to be easily adapted to other research networks
Achieving consistency in measures of HIV-1 viral suppression across countries:derivation of an adjustment based on international antiretroviral treatment cohort data
INTRODUCTION: The third of the Joint United Nations Programme on HIV/AIDS (UNAIDS) 90-90-90 targets is to achieve a 90% rate of viral suppression (HIV viral load <1000 HIV-1 RNA copies/ml) in patients on antiretroviral treatment (ART) by 2020. However, some countries use different thresholds when reporting viral suppression, and there is thus a need for an adjustment to standardize estimates to the <1000 threshold. We aim to propose such an adjustment, to support consistent monitoring of progress towards the "third 90" target. METHODS: We considered three possible distributions for viral loads in ART patients: Weibull, Pareto and reverse Weibull (imposing an upper limit but no lower limit on the log scale). The models were fitted to data on viral load distributions in ART patients in the International epidemiology Databases to Evaluate AIDS (IeDEA) collaboration (representing seven global regions) and the ART Cohort Collaboration (representing Europe), using separate random effects models for adults and children. The models were validated using data from the World Health Organization (WHO) HIV drug resistance report and the Brazilian national ART programme. RESULTS: Models were calibrated using 921,157 adult and 37,431 paediatric viral load measurements, over 2010-2019. The Pareto and reverse Weibull models provided the best fits to the data, but for all models, the "shape" parameters for the viral load distributions differed significantly between regions. The Weibull model performed best in the validation against the WHO drug resistance survey data, while the Pareto model produced uncertainty ranges that were too narrow, relative to the validation data. Based on these analyses, we recommend using the reverse Weibull model. For example, if a country reports an 80% rate of viral suppression at <200 copies/ml, this model estimates the proportion virally suppressed at <1000 copies/ml is 88.3% (0.80(0.56) ), with uncertainty range 85.5-90.6% (0.80(0.70) -0.80(0.44) ). CONCLUSIONS: Estimates of viral suppression can change substantially depending on the threshold used in defining viral suppression. It is, therefore, important that viral suppression rates are standardized to the same threshold for the purpose of assessing progress towards UNAIDS targets. We have proposed a simple adjustment that allows this, and this has been incorporated into UNAIDS modelling software
IeDEA-WHO Research-Policy Collaboration: contributing real-world evidence to HIV progress reporting and guideline development.
Partnerships between researchers and policymakers can improve uptake and integration of scientific evidence. This article describes the research-policy partnership between the International epidemiology Databases to Evaluate AIDS (IeDEA) ( www.iedea.org) and the World Health Organization (WHO), which was established in 2014. IeDEA is an international research consortium, which analyses data on almost 2 million people living with HIV under care in routine settings in 46 countries in Asia-Pacific, the Caribbean, Central and South America, North America and sub-Saharan Africa. Five multiregional analyses were identified to inform the WHO on progress towards the second and third 90s of the 90-90-90 targets in adults and children: (i) trends in CD4 cell counts at the start of antiretroviral therapy (ART); (ii) delays from enrolment in HIV care to ART initiation; (iii) the impact of ART guideline changes; (iv) retention in care, mortality and loss to follow-up; and (v) viral suppression within the first 3 years after initiating ART. Results from these analyses were contributed to the 2015 and 2016 WHO global HIV progress reports, will contribute to the 2018 report, and were published in academic journals. The partnership has been mutually beneficial: discussion of WHO policy agendas led to more policy-framed, relevant and timely IeDEA research, and the collaboration provided the WHO with timely access to the latest data from IeDEA, as it was shared prior to peer-review publication
Growth and CD4 patterns of adolescents living with perinatally acquired HIV worldwide, a CIPHER cohort collaboration analysis.
INTRODUCTION
Adolescents living with HIV are subject to multiple co-morbidities, including growth retardation and immunodeficiency. We describe growth and CD4 evolution during adolescence using data from the Collaborative Initiative for Paediatric HIV Education and Research (CIPHER) global project.
METHODS
Data were collected between 1994 and 2015 from 11 CIPHER networks worldwide. Adolescents with perinatally acquired HIV infection (APH) who initiated antiretroviral therapy (ART) before age 10 years, with at least one height or CD4 count measurement while aged 10-17 years, were included. Growth was measured using height-for-age Z-scores (HAZ, stunting if <-2 SD, WHO growth charts). Linear mixed-effects models were used to study the evolution of each outcome between ages 10 and 17. For growth, sex-specific models with fractional polynomials were used to model non-linear relationships for age at ART initiation, HAZ at age 10 and time, defined as current age from 10 to 17 years of age.
RESULTS
A total of 20,939 and 19,557 APH were included for the growth and CD4 analyses, respectively. Half were females, two-thirds lived in East and Southern Africa, and median age at ART initiation ranged from 7 years in sub-Saharan African regions. At age 10, stunting ranged from 6% in North America and Europe to 39% in the Asia-Pacific; 19% overall had CD4 counts <500 cells/mm3 . Across adolescence, higher HAZ was observed in females and among those in high-income countries. APH with stunting at age 10 and those with late ART initiation (after age 5) had the largest HAZ gains during adolescence, but these gains were insufficient to catch-up with non-stunted, early ART-treated adolescents. From age 10 to 16 years, mean CD4 counts declined from 768 to 607 cells/mm3 . This decline was observed across all regions, in males and females.
CONCLUSIONS
Growth patterns during adolescence differed substantially by sex and region, while CD4 patterns were similar, with an observed CD4 decline that needs further investigation. Early diagnosis and timely initiation of treatment in early childhood to prevent growth retardation and immunodeficiency are critical to improving APH growth and CD4 outcomes by the time they reach adulthood
The epidemiology of adolescents living with perinatally acquired HIV: A cross-region global cohort analysis
Background
Globally, the population of adolescents living with perinatally acquired HIV (APHs) continues to expand. In this study, we pooled data from observational pediatric HIV cohorts and cohort networks, allowing comparisons of adolescents with perinatally acquired HIV in âreal-lifeâ settings across multiple regions. We describe the geographic and temporal characteristics and mortality outcomes of APHs across multiple regions, including South America and the Caribbean, North America, Europe, sub-Saharan Africa, and South and Southeast Asia.
Methods and findings
Through the Collaborative Initiative for Paediatric HIV Education and Research (CIPHER), individual retrospective longitudinal data from 12 cohort networks were pooled. All children infected with HIV who entered care before age 10 years, were not known to have horizontally acquired HIV, and were followed up beyond age 10 years were included in this analysis conducted from May 2016 to January 2017. Our primary analysis describes patient and treatment characteristics of APHs at key time points, including first HIV-associated clinic visit, antiretroviral therapy (ART) start, age 10 years, and last visit, and compares these characteristics by geographic region, country income group (CIG), and birth period. Our secondary analysis describes mortality, transfer out, and lost to follow-up (LTFU) as outcomes at age 15 years, using competing risk analysis. Among the 38,187 APHs included, 51% were female, 79% were from sub-Saharan Africa and 65% lived in low-income countries. APHs from 51 countries were included (Europe: 14 countries and 3,054 APHs; North America: 1 country and 1,032 APHs; South America and the Caribbean: 4 countries and 903 APHs; South and Southeast Asia: 7 countries and 2,902 APHs; sub-Saharan Africa, 25 countries and 30,296 APHs). Observation started as early as 1982 in Europe and 1996 in sub-Saharan Africa, and continued until at least 2014 in all regions. The median (interquartile range [IQR]) duration of adolescent follow-up was 3.1 (1.5â5.2) years for the total cohort and 6.4 (3.6â8.0) years in Europe, 3.7 (2.0â5.4) years in North America, 2.5 (1.2â4.4) years in South and Southeast Asia, 5.0 (2.7â7.5) years in South America and the Caribbean, and 2.1 (0.9â3.8) years in sub-Saharan Africa. Median (IQR) age at first visit differed substantially by region, ranging from 0.7 (0.3â2.1) years in North America to 7.1 (5.3â8.6) years in sub-Saharan Africa. The median age at ART start varied from 0.9 (0.4â2.6) years in North America to 7.9 (6.0â9.3) years in sub-Saharan Africa. The cumulative incidence estimates (95% confidence interval [CI]) at age 15 years for mortality, transfers out, and LTFU for all APHs were 2.6% (2.4%â2.8%), 15.6% (15.1%â16.0%), and 11.3% (10.9%â11.8%), respectively. Mortality was lowest in Europe (0.8% [0.5%â1.1%]) and highest in South America and the Caribbean (4.4% [3.1%â6.1%]). However, LTFU was lowest in South America and the Caribbean (4.8% [3.4%â6.7%]) and highest in sub-Saharan Africa (13.2% [12.6%â13.7%]). Study limitations include the high LTFU rate in sub-Saharan Africa, which could have affected the comparison of mortality across regions; inclusion of data only for APHs receiving ART from some countries; and unavailability of data from high-burden countries such as Nigeria.
Conclusion
To our knowledge, our study represents the largest multiregional epidemiological analysis of APHs. Despite probable under-ascertained mortality, mortality in APHs remains substantially higher in sub-Saharan Africa, South and Southeast Asia, and South America and the Caribbean than in Europe. Collaborations such as CIPHER enable us to monitor current global temporal trends in outcomes over time to inform appropriate policy responses
Randomised controlled trial of effect of hands and knees posturing on incidence of occiput posterior position at birth
Objective To evaluate the efficacy of hands and knees position and pelvic rocking exercises on the incidence of fetal occiput posterior position at birth. Design Multicentre randomised controlled trial. Setting Seven maternity units in New South Wales, Australia, encompassing teaching hospitals and district general hospitals. Participants 2547 pregnant women at 37 weeks' gestation; 1292 randomised to the intervention group and 1255 to the control group. Intervention Hands and knees position and pelvic rocking exercises from 37 weeks' gestation until the onset of labour. Main outcome measure Incidence of fetal occiput posterior position at birth. Results 1046 women in the intervention group and 1209 women in the control group remained in the study until they went into labour. No significant difference existed between the groups for the incidence of occiput posterior position at birth: 105 (8.1%) women in the intervention group and 98 (7.8%) in the control group had a baby in a posterior position at delivery (difference in risk 0.3%, 95% confidence interval -1.8 to 2.4). The incidence of fetal transverse arrest was 3.4% (44 women) in the intervention group and 3.0% (38 women) in the control group (difference in risk 0.4, -1 to 1.7). No differences occurred between intervention and control groups for induction of labour, use of epidural, duration of labour, mode of delivery, use of episiotomy, or Apgar score. Conclusion Hands and knees exercise with pelvic rocking from 37 weeks' gestation to the onset of labour did not reduce the incidence of persistent occiput posterior position at birth