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Deedwania PC, Shepherd J, Breazna A, DeMicco DA. Effect of high-dose atorvastatin on the cardiovascular risk associated with individual components of metabolic syndrome: a subanalysis of the Treating to New Targets (TNT) study. Diabetes Obes Metab 2016; 18:56-63. [PMID: 26434404 DOI: 10.1111/dom.12581] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 07/13/2015] [Accepted: 09/27/2015] [Indexed: 01/02/2023]
Abstract
AIMS To investigate the impact of intensive lipid-lowering with high-dose atorvastatin on the cardiovascular risk associated with individual metabolic syndrome components [high body mass index (BMI), elevated triglycerides, low high-density lipoprotein (HDL) cholesterol, hypertension and elevated fasting glucose] in patients with coronary heart disease (CHD). METHODS Patients with clinically evident, stable CHD and low-density lipoprotein (LDL) cholesterol <3.4 mmol/l (130 mg/dl) were randomized to double-blind therapy with atorvastatin 10 mg/day (n = 5006) or 80 mg/day (n = 4995) after an 8-week open-label run-in with atorvastatin 10 mg. The median follow-up was 4.9 years. The impact of individual metabolic syndrome risk factors was tested on the primary endpoint, which was the occurrence of a first major cardiovascular event. RESULTS On-treatment LDL cholesterol was 2.6 mmol/l (101 mg/dl) with atorvastatin 10 mg and 2.0 mmol/l (77 mg/dl) with atorvastatin 80 mg. Among patients receiving atorvastatin 10 mg, the presence of each individual metabolic syndrome component significantly increased the risk of major cardiovascular events compared with the absence of each (BMI, p = 0.014; triglycerides, p = 0.006; HDL cholesterol, p = 0.0006; hypertension, p < 0.0001; and fasting glucose p < 0.0001). In patients receiving atorvastatin 80 mg, elevated triglycerides and fasting glucose were no longer significant predictors of major cardiovascular events. The predictive power of hypertension on the risk of major cardiovascular events was reduced in patients treated with atorvastatin 80 mg, although it remained a significant predictor. CONCLUSIONS Treatment with high-dose atorvastatin to a mean LDL cholesterol level of 2.0 mmol/l (77 mg/dl) considerably attenuated the predictive power associated with three metabolic syndrome components.
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Sivarajasingam V, Page N, Wells J, Morgan P, Matthews K, Moore S, Shepherd J. Trends in violence in England and Wales 2010-2014. J Epidemiol Community Health 2015; 70:616-21. [PMID: 26715592 DOI: 10.1136/jech-2015-206598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 12/01/2015] [Indexed: 11/04/2022]
Abstract
BACKGROUND The National Violence Surveillance Network (NVSN) of emergency departments (ED), minor injuries units and walk-in-centres in England and Wales has brought clarity to contradictory violence trends derived from crime survey and police data. Gender, age-specific and regional trends in violence-related injury in England and Wales since 2010 have not been studied. METHODS Data on violence-related injury were collected from a structured sample of 151 EDs in England and Wales. ED attendance date and age and gender of patients who reported injury in violence from 1 January 2010 to 31 December 2014 were identified from attendance codes, specified at the local level. Time series statistical methods were used to detect both regional and national trends. RESULTS In total, 247 016 (178 709 males: 72.3%) violence-related attendances were identified. Estimated annual injury rate across England and Wales was 4.4/1000 population (95% CI 3.9 to 4.9); males 6.5/1000 (95% CI 5.6 to 7.2) and females 2.4/1000 (95% CI 2.1 to 2.6). On average, overall attendances decreased by 13.8% per year over the 5 years (95% CI -14.8 to -12.1). Attendances decreased significantly for both genders and all age groups (0-10, 11-17, 18-30, 31-50, 51+ years); declines were greatest among children and adolescents. Significant decreases in violence-related injury were found in all but two regions. Violence peaked in May and July. CONCLUSIONS From an ED perspective, violence in England and Wales decreased substantially between 2010 and 2014, especially among children and adolescents. Violence prevention efforts should focus on regions with the highest injury rates and during the period May-July.
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Joseph MG, Shibani A, Panjwani N, Arab A, Shepherd J, Stitt LW, Inculet R. Usefulness of Ki-67, Mitoses, and Tumor Size for Predicting Metastasis in Carcinoid Tumors of the Lung: A Study of 48 Cases at a Tertiary Care Centre in Canada. LUNG CANCER INTERNATIONAL 2015; 2015:545601. [PMID: 26770831 PMCID: PMC4685137 DOI: 10.1155/2015/545601] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 11/07/2015] [Indexed: 12/23/2022]
Abstract
Background. Evaluation of Ki-67 index in lung carcinoid tumors (LCTs) has been of interest in order to identify high risk subsets. Our objectives are (1) to evaluate the usefulness of Ki-67 index, mitoses, and tumor size in predicting metastasis and (2) to compare the Manual Conventional Method (MCM) and the Computer Assisted Image Analysis Method (CIAM) for Ki-67 calculation. Methods. We studied 48 patients with LCTs from two academic centres in Canada. For Ki-67 calculation, digital images of 5000 cells were counted using an image processing software and 2000 cells by MCM. Mitoses/10 HPF was counted. Results. We had 37 typical carcinoids (TCs) and 11 atypical carcinoids (ACs). 7/48 patients developed metastasis. There was a positive relationship between metastasis and carcinoid type (P = 0.039) and metastasis and mitoses (≥2) (P = 0.017). Although not statistically significant, the mean Ki-67 index for ACs was higher than for TCs (0.95% versus 0.72%, CIAM, P = 0.299). Similarly, although not statistically significant, the mean Ki-67 index for metastatic group (MG) was higher than for nonmetastatic group (NMG) (1.01% versus 0.71% by CIAM, P = 0.281). However when Ki-67 index data was categorized at various levels, there is suggestion of a useful cutoff (≥0.50%) to predict metastasis (P = 0.106, CIAM). A significantly higher proportion of patients with mitosis ≥2 and Ki-67 index ≥0.50% had metastasis (P = 0.033) compared to other patients. Similarly patients with tumor size ≥3 cm and Ki-67 ≥0.50% had a greater percentage of metastases than others (P = 0.039). Although there was a strong correlation between two (MCM versus CIAM) counting methods (r = 0.929, P = 0.001), overall the calculated Ki-67 index was slightly higher by MCM (range 0 to 6.4, mean 1.5) compared to CIAM (range 0 to 2.9, mean 0.75). Conclusion. This study confirms that mitoses ≥2 is a powerful predictor of metastasis in LCTs. Although this is a small sample size, there is suggestion that analysis of Ki-67 index along with mitoses and tumor size may be a useful adjunct for predicting metastasis in LCTs.
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Cooper K, Shepherd J, Frampton G, Harris P, Lotery A. The cost-effectiveness of second-eye cataract surgery in the UK. Age Ageing 2015; 44:1026-31. [PMID: 26410365 DOI: 10.1093/ageing/afv126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 07/27/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Elective cataract surgery is the most commonly performed surgical procedure in developed countries. However, it is unclear whether cataract surgery on the second eye provides enough incremental benefit to be considered cost-effective. This study conducted a cost-effectiveness analysis of second-eye cataract surgery in the U.K. DESIGN A cost-effectiveness analysis. METHODS A decision-analytical model was developed to estimate the cost-effectiveness of second-eye cataract surgery, based on a comprehensive epidemiological and economic review to develop the parameters for the model. The model followed the clinical pathway of cohorts of patients receiving second-eye cataract surgery and included costs and health benefits associated with post-surgical complications. RESULTS In the model, second-eye surgery generated 0.68 additional quality-adjusted life years (QALY) with an incremental cost-effectiveness ratio of £1,964 per QALY gained. In sensitivity analyses, model results were most sensitive to changes in the health-related quality of life (HRQoL) gain associated with second-eye surgery, but otherwise robust to changes in parameter values. The probability that second-eye surgery is cost-effective at willingness to pay thresholds of £10,000 and £20,000 was 100%. CONCLUSION Second-eye cataract surgery is generally cost-effective based on the best available data and under most assumptions. However, there are only a small number of clinical trials for second-eye cataract surgery, and these have not been conducted in recent years.
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Shepherd J, Page N. The economic downturn probably reduced violence far more than licensing restrictions. Addiction 2015; 110:1583-4. [PMID: 26350710 DOI: 10.1111/add.13023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 06/10/2015] [Indexed: 12/01/2022]
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Moore SC, Alam MF, Cohen D, Hood K, Huang C, Murphy S, Playle R, Moore L, Shepherd J, Sivarajasingam V, Spasic I, Stanton H, Williams A. All-Wales Licensed Premises Intervention (AWLPI): a randomised controlled trial of an intervention to reduce alcohol-related violence. PUBLIC HEALTH RESEARCH 2015. [DOI: 10.3310/phr03100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BackgroundViolence in and around premises licensed for the on-site sale and consumption of alcohol continues to burden the NHS with assault-related injuries.Trial designA randomised controlled trial with licensed premises as the unit of allocation, with additional process and cost-effectiveness evaluations.MethodsPremises were eligible (n = 837) if they were licensed for on-site sale and consumption of alcohol, were within 1 of the 22 local authorities (LAs) in Wales and had previously experienced violence. Data were analysed using Andersen–Gill recurrent event models in an intention-to-treat analysis. An embedded process evaluation examined intervention implementation, reach, fidelity, dose and receipt. An economic evaluation compared costs of the intervention with benefits.InterventionPremises were randomised to receive a violence-reduction intervention, Safety Management in Licensed Environments (SMILE), which was delivered by an environmental health practitioner (EHP; the agent). SMILE consisted of an initial risk audit to identify known risks of violence, a follow-up audit scheduled to enforce change for premises in which serious risks had been identified, structured advice from EHPs on how risks could be addressed in premises and online materials that provided educational videos and related material.ObjectiveTo develop intervention materials that are acceptable and consistent with EHPs’ statutory remit; to determine the effectiveness of the SMILE intervention in reducing violence; to determine reach, fidelity, dose and receipt of the intervention; and to consider intervention cost-effectiveness.OutcomeDifference in police-recorded violence between intervention and control premises over a 455-day follow-up period.RandomisationA minimum sample size of 274 licensed premises per arm was required, rounded up to 300 and randomly selected from the eligible population. Licensed premises were randomly assigned by computer to intervention and control arms in a 1 : 1 ratio. Optimal allocation was used, stratified by LA. Premises opening hours, volume of previous violence and LA EHP capacity were used to balance the randomisation. Premises were dropped from the study if they were closed at the time of audit.ResultsSMILE was delivered with high levels of reach and fidelity but similar levels of dose to all premises, regardless of risk level. Intervention premises (n = 208) showed an increase in police-recorded violence compared with control premises (n = 245), although results are underpowered. An initial risk audit was less effective than normal practice (hazard ratio = 1.34, 95% confidence interval 1.20 to 1.51) and not cost-effective. Almost all eligible intervention premises (98.6%) received the initial risk audit; nearly 40% of intervention practices should have received follow-up visits but fewer than 10% received one. The intervention was acceptable to EHPs and to some premises staff, but less so for smaller independent premises.ConclusionsSMILE was associated with an increase in police-recorded violence in intervention premises, compared with control premises. A lack of follow-up enforcement visits suggests implementation failure for what was seen as a key mechanism of action. There are also concerns as to the robustness of police data for targeting and assessing outcome effectiveness, while intervention premises may have received greater attention from statutory agencies and, therefore, the identification of more violence than control premises. Although SMILE had high reach and was feasible and acceptable to EHPs, it was found to be ineffective and associated with increased levels of violence, compared with normal practice and it requires additional work to promote the implementation of follow-up enforcement visits. Future work will aim to better understand the role of intervention dose on outcomes and seek more objective measures of violence for use in similar trials.Trial registrationCurrent Controlled Trials ISRCTN78924818.FundingThis project was funded by the NIHR Public Health Research programme and will be published in full inPublic Health Research; Vol. 3, No. 10. See the NIHR Journals Library website for further project information.
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Frampton G, Harris P, Cooper K, Lotery A, Shepherd J. The clinical effectiveness and cost-effectiveness of second-eye cataract surgery: a systematic review and economic evaluation. Health Technol Assess 2015; 18:1-205, v-vi. [PMID: 25405576 DOI: 10.3310/hta18680] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Elective cataract surgery is the most commonly performed surgical procedure in the NHS. In bilateral cataracts, the eye with greatest vision impairment from cataract is operated on first. First-eye surgery can improve vision and quality of life. However, it is unclear whether or not cataract surgery on the second eye provides enough incremental benefit to be considered clinically effective and cost-effective. OBJECTIVE To conduct a systematic review of clinical effectiveness and analysis of cost-effectiveness of second-eye cataract surgery in England and Wales, based on an economic model informed by systematic reviews of cost-effectiveness and quality of life. DATA SOURCES Twelve electronic bibliographic databases, including MEDLINE, EMBASE, Web of Science, The Cochrane Library and the Centre for Reviews and Dissemination databases were searched from database inception to April 2013, with searches updated in July 2013. Reference lists of relevant publications were also checked and experts consulted. REVIEW METHODS Two reviewers independently screened references, extracted and checked data from the included studies and appraised their risk of bias. Based on the review of cost-effectiveness, a de novo economic model was developed to estimate the cost-effectiveness of second-eye surgery in bilateral cataract patients. The model is based on changes in quality of life following second-eye surgery and includes post-surgical complications. RESULTS Three randomised controlled trials (RCTs) of clinical effectiveness, three studies of cost-effectiveness and 10 studies of health-related quality of life (HRQoL) met the inclusion criteria for the systematic reviews and, where possible, were used to inform the economic analysis. Heterogeneity of studies precluded meta-analyses, and instead data were synthesised narratively. The RCTs assessed visual acuity, contrast sensitivity, stereopsis and several measures of HRQoL. Improvements in binocular visual acuity and contrast sensitivity were small and unlikely to be of clinical significance, but stereopsis was improved to a clinically meaningful extent following second-eye surgery. Studies did not provide evidence that second-eye surgery significantly affected HRQoL, apart from an improvement in the mental health component of HRQoL in one RCT. In the model, second-eye surgery generated 0.68 incremental quality-adjusted life-years with an incremental cost-effectiveness ratio of £1964. Model results were most sensitive to changes in the utility gain associated with second-eye surgery, but otherwise robust to changes in parameter values. The probability that second-eye surgery is cost-effective at willingness-to-pay thresholds of £10,000 and £20,000 is 100%. LIMITATIONS Clinical effectiveness studies were all conducted more than 9 years ago. Patients had good vision pre surgery which may not represent all patients eligible for second-eye surgery. For some vision-related patient-reported outcomes and HRQoL measures, thresholds for determining important clinical effects are either unclear or have not been determined. CONCLUSIONS Second-eye cataract surgery is generally cost-effective based on the best available data and under most assumptions. However, more up-to-date data are needed. A well-conducted RCT that reflects current populations and enables the estimation of health state utility values would be appropriate. Guidance is required on which vision-related, patient-reported outcomes are suitable for assessing effects of cataract surgery in the NHS and how these measures should be interpreted clinically. STUDY REGISTRATION This project is registered as PROSPERO CRD42013004211. FUNDING This project was funded by the National Institute for Health Research Health Technology Assessment programme.
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Hart V, Reeves KW, Sturgeon SR, Reich NG, Sievert LL, Kerlikowske K, Ma L, Shepherd J, Tice J, Sprague BL. The Effect of Weight Change on Volumetric Measures of Mammographic Density. Cancer Epidemiol Biomarkers Prev 2015. [DOI: 10.1158/1055-9965.epi-15-0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
The association between changing body mass index (BMI) and mammographic breast density is important to better evaluate how to adjust for BMI gain/loss in longitudinal studies of density and breast cancer risk. Increasing BMI has been associated with decreasing percent dense area but the effect on absolute dense area is unclear. No studies have explored a longitudinal association using volumetric density measurement. Methods: We examined the association between change in BMI and change in volumetric breast density among 24,556 women who received breast imaging at the San Francisco Mammography Registry from 2007–2013. Height and weight were self-reported at the time of mammography. Breast density was assessed using single x-ray absorptiometry (SXA) volumetric measurement. The cross-sectional and longitudinal associations between BMI and absolute dense volume (DV) and percent dense volume (PDV) were assessed using multivariable adjusted regression. Results: Women were primarily Caucasian (66%) or Asian (25%) and most were postmenopausal (64%) at time of first mammogram. In cross-sectional analysis, BMI was positively associated with DV (β = 2.95 cm3, 95% CI, 2.69–3.21) and inversely associated with PDV (β = −2.03%, 95% CI, −2.09–−1.98). In longitudinal analysis, an annual increase in BMI was associated with an annual decrease in both DV (β = −1.01 cm3/year, 95% CI, −1.59–−0.42) and PDV (β = −1.17%/year, 95% CI, −1.31–−1.04). Findings were consistent between pre- and postmenopausal women. The annual decrease in DV was strongest among premenopausal women who were initially overweight or obese (P < 0.01 for interaction by initial BMI). Conclusion: Our findings support an inverse association between change in BMI and change in PDV. Longitudinal studies of PDV and breast cancer risk, or those using PDV as an indicator of breast cancer risk, should consider adjusting for change in BMI. The association between increasing BMI and decreasing DV is unexpected and will require confirmation using volumetric methods.
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Rogers R, Nolen T, Weidner A, Richter H, Jelovsek J, Meikle S, Shepherd J, Harvie H, Brubaker L, Menefee S, Myers D, Hsu Y, Schaffer J, Wallace D. Sacrocolpopexy (ASC) and Vaginal Native Tissue Apical Repair (VAR): A Retrospective Comparison of Success and Serious Adverse Events (SAE) among Participants from Multiple Randomized Trials. J Minim Invasive Gynecol 2015. [DOI: 10.1016/j.jmig.2014.12.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
BACKGROUND Dental specialists treat conditions such as facial trauma and oral cancer that can result from alcohol misuse. Visits to primary dental care professionals are oriented towards prevention. Interventions coordinated by specialist services but delivered strategically in primary care could therefore potentially help to reduce burdens on secondary care services. The aim of this study was to determine the feasibility of screening for alcohol misuse and providing brief intervention in a primary dental care setting. METHODS In this randomised controlled trial, patients aged 18-65 years were recruited from a local general dental practice. Patients were stratified according to appointment (with a dentist or hygienist). Reception staff administered envelope packs containing screening materials (the Modified Single Alcohol Screening Question [M-SASQ]), consent forms, and a short survey collecting contact details to patients who agreed to take part in the study. Packs were randomly pre-allocated to control and intervention groups by strata using block randomisation before the start of the study. Consenting patients scoring positively on the M-SASQ for drinking hazardously and allocated to the intervention group received a motivational intervention to reduce alcohol intake from either the hygienist or dentist. Patients in the control group received usual care. The outcome assessor and patients were masked to allocations. The outcome measure at 3 months was M-SASQ score. This trial is registered with the ISRCTN registry, number ISRCTN18745862. FINDINGS One hygiene patient and 106 dental patients were recruited. The hygiene patient did not score positively on the M-SASQ for alcohol misuse. Of the 106 dental patients, 46 (43%) scored positively, with 26 allocated to the intervention group and 20 to the control group. Follow-up data were available for 22 (48%) of the 46 patients (12 intervention, 10 control). M-SASQ scores changed from positive to negative for two patients in the intervention and five in the control group. INTERPRETATION Alcohol misuse screening and treatment was feasible in a primary dental care setting; this suggests a new approach involving the general dental team, which could potentially reduce burdens on specialist dental services. Overall, in this practice, the dentist was best placed to deliver the intervention rather than the hygienist since these health-care professionals saw most of the patients recruited into the trial. Contamination might have been a problem because more patients in the control group changed M-SASQ score. Building on these findings, a multicentre, cluster randomised controlled trial is planned. FUNDING Royal College of Surgeons of England.
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Frampton GK, Harris P, Cooper K, Cooper T, Cleland J, Jones J, Shepherd J, Clegg A, Graves N, Welch K, Cuthbertson BH. Educational interventions for preventing vascular catheter bloodstream infections in critical care: evidence map, systematic review and economic evaluation. Health Technol Assess 2014; 18:1-365. [PMID: 24602781 DOI: 10.3310/hta18150] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Bloodstream infections resulting from intravascular catheters (catheter-BSI) in critical care increase patients' length of stay, morbidity and mortality, and the management of these infections and their complications has been estimated to cost the NHS annually £19.1-36.2M. Catheter-BSI are thought to be largely preventable using educational interventions, but guidance as to which types of intervention might be most clinically effective is lacking. OBJECTIVE To assess the effectiveness and cost-effectiveness of educational interventions for preventing catheter-BSI in critical care units in England. DATA SOURCES Sixteen electronic bibliographic databases - including MEDLINE, MEDLINE In-Process & Other Non-Indexed Citations, Cumulative Index to Nursing and Allied Health Literature (CINAHL), NHS Economic Evaluation Database (NHS EED), EMBASE and The Cochrane Library databases - were searched from database inception to February 2011, with searches updated in March 2012. Bibliographies of systematic reviews and related papers were screened and experts contacted to identify any additional references. REVIEW METHODS References were screened independently by two reviewers using a priori selection criteria. A descriptive map was created to summarise the characteristics of relevant studies. Further selection criteria developed in consultation with the project Advisory Group were used to prioritise a subset of studies relevant to NHS practice and policy for systematic review. A decision-analytic economic model was developed to investigate the cost-effectiveness of educational interventions for preventing catheter-BSI. RESULTS Seventy-four studies were included in the descriptive map, of which 24 were prioritised for systematic review. Studies have predominantly been conducted in the USA, using single-cohort before-and-after study designs. Diverse types of educational intervention appear effective at reducing the incidence density of catheter-BSI (risk ratios statistically significantly < 1.0), but single lectures were not effective. The economic model showed that implementing an educational intervention in critical care units in England would be cost-effective and potentially cost-saving, with incremental cost-effectiveness ratios under worst-case sensitivity analyses of < £5000/quality-adjusted life-year. LIMITATIONS Low-quality primary studies cannot definitively prove that the planned interventions were responsible for observed changes in catheter-BSI incidence. Poor reporting gave unclear estimates of risk of bias. Some model parameters were sourced from other locations owing to a lack of UK data. CONCLUSIONS Our results suggest that it would be cost-effective and may be cost-saving for the NHS to implement educational interventions in critical care units. However, more robust primary studies are needed to exclude the possible influence of secular trends on observed reductions in catheter-BSI. STUDY REGISTRATION The study is registered with PROSPERO as CRD42012001840. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Jassam N, Mbagaya W, Kallner A, Hill R, Carless D, Barth JH, Delaney H, Lippiatt C, Shepherd J, Glover S, Slack S, Mitchell K, Strafen A, Bosomworth MP. Does creatinine analytical performance support robust identification of acute kidney injury within individual laboratories in a region. Clin Chem Lab Med 2014; 53:e63-5. [PMID: 25274945 DOI: 10.1515/cclm-2014-0785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 08/25/2014] [Indexed: 11/15/2022]
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Hollander PD, Tismelzon A, Shepherd J, Rawls KR, Hill JL, Mazumdar A, Hilsenbeck SG, Mills GB, Brown PH. Abstract 971: Phosphatase PTP4A3 is critical for cell growth of triple-negative breast cancer. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Triple-negative breast cancer (TNBC) has the worst prognosis of all breast cancers, and frequently affects young and in particular African-American Women. Women diagnosed with these tumors currently lack targeted treatment options. To identify novel targets for TNBC treatment, we identified specific phosphatases that are critical for the growth of TNBCs.
Methods: To identify novel targets for TNBC, we investigated the expression of phosphatases in breast tumors, identified those highly expressed in TNBC, and studied whether specific phosphatases are essential for TNBC growth. siRNA were used to knock-down each of the 20 highly expressed phosphatases in 4 TNBC, 4 ER-positive BC cell lines. Cell growth was measured by cell count, and anchorage-independent growth was tested with soft agar assays. Xenograft experiments were performed by injecting TNBC cells expressing inducible shRNA-PTP4A3 into the mammary fat pad of nude mice. Mice with palpable tumors were then randomized to receive either water containing doxycycline (Dox) or vehicle. Tumor size was measured every other day, and the growth rates of tumors were calculated and compared using Student's t-test of the slopes. The prognostic importance of PTP4A3 was evaluated using gene expression and survival data. R statistical software was used to generate Kaplan-Meier curves and determine statistical significance using the log rank (Mantel-Cox) method and perform Cox proportional hazards models analyses. Patients were dichotomized at the mean expression level.
Results: Knockdown of nine phosphatases, including PTP4A3 (PRL-3) significantly reduced growth and anchorage-independent growth of TNBC cell lines. PTP4A3 siRNA treatment induced a G1/S cell cycle block in all breast cancer cell lines. Further analysis of the phosphatase PTP4A3 demonstrated that reduced expression induced apoptosis in four TNBC cell lines, without inducing apoptosis in most ER-positive BC cell lines. Inhibition of PTP4A3 in TNBC xenografts suppressed growth, and a reduction in proliferation and induction of apoptosis was detected by immunohistochemistry. In silico analysis of PTP4A3 expression confirmed elevated expression of PTP4A3 in TNBCs and demonstrated that PTP4A3 is an independent prognostic indicator for breast cancer specific survival.
Conclusion: These studies identified a set of highly expressed phosphatases that represent promising targets for the treatment of TNBCs. We also demonstrated that one of these phosphatases, PTP4A3, is critical for the growth of TNBCs in vitro and in vivo, and PTP4A3 expression is prognostic in women with TNBC. These results provide the rationale for further study of growth promoting phosphatases and suggest that such phosphatases may be targeted for the treatment of this aggressive form of breast cancer.
Research supported by: Susan G. Komen for the Cure (PB, GM), Komen SAB, and the Norman Brinker Award for Research Excellence.
Citation Format: Petra den Hollander, Anna Tismelzon, Jonathan Shepherd, Kathryn R. Rawls, Jamal L. Hill, Abhijit Mazumdar, Susan G. Hilsenbeck, Gordon B. Mills, Powel H. Brown. Phosphatase PTP4A3 is critical for cell growth of triple-negative breast cancer. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 971. doi:10.1158/1538-7445.AM2014-971
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Shepherd J, Harden A, Barnett-Page E, Kavanagh J, Picot J, Frampton GK, Cooper K, Hartwell D, Clegg A. Using process data to understand outcomes in sexual health promotion: an example from a review of school-based programmes to prevent sexually transmitted infections. HEALTH EDUCATION RESEARCH 2014; 29:566-582. [PMID: 24488650 DOI: 10.1093/her/cyt155] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This article discusses how process indicators can complement outcomes as part of a comprehensive explanatory evaluation framework, using the example of skills-based behavioural interventions to prevent sexually transmitted infections and promote sexual health among young people in schools. A systematic review was conducted, yielding 12 eligible outcome evaluations, 9 of which included a process evaluation. There were few statistically significant effects in terms of changes in sexual behaviour outcomes, but statistically significant effects were more common for knowledge and self-efficacy. Synthesis of the findings of the process evaluations identified a range of factors that might explain outcomes, and these were organized into two overarching categories: the implementation of interventions, and student engagement and intervention acceptability. Factors which supported implementation and engagement and acceptability included good quality teacher training, involvement and motivation of key school stakeholders and relevance and appeal to young people. Factors which had a negative impact included teachers' failure to comprehend the theoretical basis for behaviour change, school logistical problems and omission of topics that young people considered important. It is recommended that process indicators such as these be assessed in future evaluations of school-based sexual health behavioural interventions, as part of a logic model.
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Newbury-Birch D, Coulton S, Bland M, Cassidy P, Dale V, Deluca P, Gilvarry E, Godfrey C, Heather N, Kaner E, McGovern R, Myles J, Oyefeso A, Parrott S, Patton R, Perryman K, Phillips T, Shepherd J, Drummond C. Alcohol screening and brief interventions for offenders in the probation setting (SIPS Trial): a pragmatic multicentre cluster randomized controlled trial. Alcohol Alcohol 2014; 49:540-8. [PMID: 25063992 DOI: 10.1093/alcalc/agu046] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
AIM To evaluate the effectiveness of different brief intervention strategies at reducing hazardous or harmful drinking in the probation setting. Offender managers were randomized to three interventions, each of which built on the previous one: feedback on screening outcome and a client information leaflet control group, 5 min of structured brief advice and 20 min of brief lifestyle counselling. METHODS A pragmatic multicentre factorial cluster randomized controlled trial. The primary outcome was self-reported hazardous or harmful drinking status measured by Alcohol Use Disorders Identification Test (AUDIT) at 6 months (negative status was a score of <8). Secondary outcomes were AUDIT status at 12 months, experience of alcohol-related problems, health utility, service utilization, readiness to change and reduction in conviction rates. RESULTS Follow-up rates were 68% at 6 months and 60% at 12 months. At both time points, there was no significant advantage of more intensive interventions compared with the control group in terms of AUDIT status. Those in the brief advice and brief lifestyle counselling intervention groups were statistically significantly less likely to reoffend (36 and 38%, respectively) than those in the client information leaflet group (50%) in the year following intervention. CONCLUSION Brief advice or brief lifestyle counselling provided no additional benefit in reducing hazardous or harmful drinking compared with feedback on screening outcome and a client information leaflet. The impact of more intensive brief intervention on reoffending warrants further research.
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Abstract
It’s on the medical history form and you may feel like you’ve asked it thousands of times: ‘How many units of alcohol do you consume each week?’. But is this question effective at identifying people with alcohol problems? Our authors provide evidence that a new approach to recording alcohol consumption would lead to more and better advice being given to patients.
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Drummond C, Deluca P, Coulton S, Bland M, Cassidy P, Crawford M, Dale V, Gilvarry E, Godfrey C, Heather N, McGovern R, Myles J, Newbury-Birch D, Oyefeso A, Parrott S, Patton R, Perryman K, Phillips T, Shepherd J, Touquet R, Kaner E. The effectiveness of alcohol screening and brief intervention in emergency departments: a multicentre pragmatic cluster randomized controlled trial. PLoS One 2014; 9:e99463. [PMID: 24963731 PMCID: PMC4070907 DOI: 10.1371/journal.pone.0099463] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 05/12/2014] [Indexed: 11/18/2022] Open
Abstract
Background Alcohol misuse is common in people attending emergency departments (EDs) and there is some evidence of efficacy of alcohol screening and brief interventions (SBI). This study investigated the effectiveness of SBI approaches of different intensities delivered by ED staff in nine typical EDs in England: the SIPS ED trial. Methods and Findings Pragmatic multicentre cluster randomized controlled trial of SBI for hazardous and harmful drinkers presenting to ED. Nine EDs were randomized to three conditions: a patient information leaflet (PIL), 5 minutes of brief advice (BA), and referral to an alcohol health worker who provided 20 minutes of brief lifestyle counseling (BLC). The primary outcome measure was the Alcohol Use Disorders Identification Test (AUDIT) status at 6 months. Of 5899 patients aged 18 or more presenting to EDs, 3737 (63·3%) were eligible to participate and 1497 (40·1%) screened positive for hazardous or harmful drinking, of whom 1204 (80·4%) gave consent to participate in the trial. Follow up rates were 72% (n = 863) at six, and 67% (n = 810) at 12 months. There was no evidence of any differences between intervention conditions for AUDIT status or any other outcome measures at months 6 or 12 in an intention to treat analysis. At month 6, compared to the PIL group, the odds ratio of being AUDIT negative for brief advice was 1·103 (95% CI 0·328 to 3·715). The odds ratio comparing BLC to PIL was 1·247 (95% CI 0·315 to 4·939). A per protocol analysis confirmed these findings. Conclusions SBI is difficult to implement in typical EDs. The results do not support widespread implementation of alcohol SBI in ED beyond screening followed by simple clinical feedback and alcohol information, which is likely to be easier and less expensive to implement than more complex interventions. Trial Registration Current Controlled Trials ISRCTN 93681536
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Shepherd J, Jones J, Frampton G, Bryant J, Baxter L, Cooper K. Clinical effectiveness and cost-effectiveness of depth of anaesthesia monitoring (E-Entropy, Bispectral Index and Narcotrend): a systematic review and economic evaluation. Health Technol Assess 2014; 17:1-264. [PMID: 23962378 DOI: 10.3310/hta17340] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND It is important that the level of general anaesthesia (GA) is appropriate for the individual patient undergoing surgery. If anaesthesia is deeper than required to keep a patient unconscious, there might be increased risk of anaesthetic-related morbidity, such as postoperative nausea, vomiting and cognitive dysfunction. This may also prolong recovery times, potentially increasing health-care costs. If anaesthesia is too light, patients may not be fully unconscious and could be at risk of intraoperative awareness. OBJECTIVE The objective of this report is to assess the clinical effectiveness and cost-effectiveness of Bispectral Index (BIS), E-Entropy and Narcotrend technologies, each compared with standard clinical monitoring, to monitor the depth of anaesthesia in surgical patients undergoing GA. DATA SOURCES A search strategy was developed and run on a number of bibliographic electronic databases including MEDLINE, EMBASE, The Cochrane Library and the Health Technology Assessment (HTA) database. For the systematic review of patient outcomes, databases were searched from the beginning of 2009 to November 2011 for studies of BIS (and then updated in February 2012), and from 1995 to November 2011 (and then updated in February 2012) for studies of E-Entropy and Narcotrend. For the systematic review of cost-effectiveness, searches were from database inception to November 2011 (an update search was performed in February 2012). REVIEW METHODS The systematic review of patient outcomes followed standard methodology for evidence synthesis. A decision-analytic model was developed to assess the cost-effectiveness of depth of anaesthesia monitoring compared with standard clinical observation. A simple decision tree was developed, which accounted for patients' risk of experiencing short-term anaesthetic-related complications in addition to risk of experiencing intraoperative awareness. RESULTS Twenty-two randomised controlled trials comparing BIS, E-Entropy and Narcotrend with standard clinical monitoring were included in the systematic review of patient outcomes, alongside evidence from a recent Cochrane review. Six trials of patients classified with risk factors for intraoperative awareness were combined in a fixed-effect meta-analysis. The overall pooled Peto's odds ratio was 0.45 (95% confidence interval 0.25 to 0.81) in favour of BIS. However, there was statistically significant heterogeneity. The base-case cost per quality-adjusted life-year (QALY) for BIS compared with standard clinical monitoring ranged from £22,339 to £44,198 depending on patient subgroups (type of GA received; level of risk for awareness). For E-Entropy, base-case estimates ranged from £14,421 to £31,430. For Narcotrend, estimates varied from a cost per QALY of £8033 to Narcotrend dominating standard clinical monitoring. LIMITATIONS The analysis was limited by lack of clinical effectiveness data, particularly for E-Entropy and Narcotrend. CONCLUSIONS The available evidence on the impact of the technologies on reducing the likelihood of intraoperative awareness is limited. However, there were reductions in general anaesthetic consumption and anaesthetic recovery times. The cost-effectiveness of depth of anaesthesia monitoring appears to be highly dependent on a number of factors, including probability of awareness. STUDY REGISTRATION PROSPERO registration number CRD42011001834. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Sivarajasingam V, Page N, Morgan P, Matthews K, Moore S, Shepherd J. Trends in community violence in England and Wales 2005-2009. Injury 2014; 45:592-8. [PMID: 23867145 DOI: 10.1016/j.injury.2013.06.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 06/14/2013] [Accepted: 06/18/2013] [Indexed: 02/02/2023]
Abstract
PURPOSE Injury records from Emergency Departments (EDs) have been studied over the last decade as part of the work of the National Violence Surveillance Network (NVSN) and provide information about local, regional and national violence levels and trends in England and Wales. The purpose of the current study is to evaluate overall, gender, age-specific and regional trends in community violence in England and Wales from an ED perspective from January 2005 to December 2009. METHODS Violence-related injury data were collected prospectively in a stratified sample of 77 EDs (Types 1, 3 and 4) in the nine Government Office Regions in England and in Wales. All 77 EDs were recruited on the basis that they had implemented and continued to comply with the provisions of the 1998 Data Protection Act and Caldicott guidance. Attendance date, age and gender of patients who reported injury in violence were identified using assault-related attendance codes, specified at the local level. Time series statistical methods were used to detect both regional and national trends. RESULTS In total 221,673 (163,384 males: 74%) violence-related attendances were identified. Overall estimated annual injury rate was 6.5 per 1000 resident population (males 9.8 and females 3.4 per 1000). Violence affecting males and females decreased significantly in England and Wales over the 5-year period, with an overall estimated annual decrease of 3% (95% CI: 1.8-4.1%, p<0.05). Attendances decreased significantly for both genders across four out of the five age groups studied. Attendances were found to be highest during the months of May and July and lowest in February. Substantial differences in violence-related ED attendances were identified at the regional level. CONCLUSIONS From this ED perspective overall violence in England and Wales decreased over the period 2005-2009 but increased in East Midlands, London and South West regions. Since 2006, overall trends according to Crime Survey for England and Wales (CSEW), police and ED measures were similar, though CSEW and ED measures reflect far greater numbers of violent incidents than police data. Causes of decreases in violence in regions need to be identified and shared with regions where violence increased.
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Moore SC, O'Brien C, Alam MF, Cohen D, Hood K, Huang C, Moore L, Murphy S, Playle R, Sivarajasingam V, Spasic I, Williams A, Shepherd J. All-Wales licensed premises intervention (AWLPI): a randomised controlled trial to reduce alcohol-related violence. BMC Public Health 2014; 14:21. [PMID: 24405575 PMCID: PMC3905659 DOI: 10.1186/1471-2458-14-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 12/18/2013] [Indexed: 11/10/2022] Open
Abstract
Background Alcohol-related violence in and in the vicinity of licensed premises continues to place a considerable burden on the United Kingdom’s (UK) health services. Robust interventions targeted at licensed premises are therefore required to reduce the costs of alcohol-related harm. Previous evaluations of interventions in licensed premises have a number of methodological limitations and none have been conducted in the UK. The aim of the trial was to determine the effectiveness of the Safety Management in Licensed Environments intervention designed to reduce alcohol-related violence in licensed premises, delivered by Environmental Health Officers, under their statutory authority to intervene in cases of violence in the workplace. Methods/Design A national randomised controlled trial, with licensed premises as the unit of allocation. Premises were identified from all 22 Local Authorities in Wales. Eligible premises were those with identifiable violent incidents on premises, using police recorded violence data. Premises were allocated to intervention or control by optimally balancing by Environmental Health Officer capacity in each Local Authority, number of violent incidents in the 12 months leading up to the start of the project and opening hours. The primary outcome measure is the difference in frequency of violence between intervention and control premises over a 12 month follow-up period, based on a recurrent event model. The trial incorporates an embedded process evaluation to assess intervention implementation, fidelity, reach and reception, and to interpret outcome effects, as well as investigate its economic impact. Discussion The results of the trial will be applicable to all statutory authorities directly involved with managing violence in the night time economy and will provide the first formal test of Health and Safety policy in this environment. If successful, opportunities for replication and generalisation will be considered. Trial registration UKCRN 14077; ISRCTN78924818.
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Shepherd J, Jones J. A systematic review of the cost–effectiveness of peginterferon alfa-2b in the treatment of chronic hepatitis C. Expert Rev Pharmacoecon Outcomes Res 2014; 7:577-95. [DOI: 10.1586/14737167.7.6.577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sirls LT, Tennstedt S, Brubaker L, Kim HY, Nygaard I, Rahn DD, Shepherd J, Richter HE. The minimum important difference for the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form in women with stress urinary incontinence. Neurourol Urodyn 2013; 34:183-7. [PMID: 24273137 DOI: 10.1002/nau.22533] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Accepted: 10/23/2013] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Minimum important difference (MID) estimates the minimum degree of change in an instrument's score that correlates with a patient's subjective sense of improvement. We aimed to determine the MID for the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) using both anchor based and distribution based methods derived using data from the Trial of Midurethral Slings (TOMUS). MATERIALS AND METHODS Instruments for the anchor-based analyses included the urogenital distress inventory (UDI), incontinence impact questionnaire (IIQ), patient global impression of improvement (PGI-I), incontinence episodes (IE) on 7-day bladder diary, and satisfaction with surgical results. After confirming moderate correlation (r ≥ 0.3) of ICIQ-UI SF and each anchor, MIDs were determined by calculating the difference between the mean instrument scores for individuals with the smallest amount of improvement and with no change. The distribution-based method of MID assessment was applied using effect sizes of 0.2 and 0.5 SD (small to medium effects). Triangulation was used to examine these multiple MID values in order to converge on a small range of values. RESULTS Anchor-based MIDs range from -4.5 to -5.7 at 12 months and from -3.1 to 4.3 at 24 months. Distribution-based MID values were lower. Triangulation analysis supports a MID of -5 at 12 months and -4 at 24 months. CONCLUSION The recommended MIDs for ICIQ-UI SF are -5 at 12 months and -4 at 24 months. In surgical patients, ICIQ-UI SF score changes that meet these thresholds can be considered clinically meaningful.
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Playle R, Moore S, Murphy S, Moore L, Hood K, Shepherd J. Overcoming the challenge of conducting a pragmatic randomised trial in premises licensed for the on-site sale and consumption of alcohol. Trials 2013. [PMCID: PMC3980902 DOI: 10.1186/1745-6215-14-s1-p28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Lang T, Biscette S, Shepherd J, Hudgens J, Pasic R. The ABC Approach to Laparoscopic Hysterectomy. J Minim Invasive Gynecol 2013. [DOI: 10.1016/j.jmig.2013.08.604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dewhirst S, Pickett K, Speller V, Shepherd J, Byrne J, Almond P, Grace M, Hartwell D, Roderick P. Are trainee teachers being adequately prepared to promote the health and well-being of school children? A survey of current practice. J Public Health (Oxf) 2013; 36:467-75. [PMID: 24169413 DOI: 10.1093/pubmed/fdt103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Teachers are a key part of the wider public health workforce in England. We conducted a survey to find out how they are trained for this role during their initial teacher education (ITE). METHODS Between 2011 and 2012, we sent an online questionnaire to 220 ITE course managers and conducted semi-structured interviews with a purposive sample of 19 course managers to explore issues in more depth. RESULTS The response rate to the questionnaire was 34% (n = 74). Although most of the course managers felt inclusion of health and well-being training in ITE was important, provision across courses was variable. Topics which are public health priorities [e.g. sex and relationships education (SRE) and drugs, alcohol and tobacco] were covered by fewer courses than other topics (e.g. child protection, emotional health and anti-bullying). Perceived barriers to training included lack of time and a belief that health and well-being were low priorities in educational policy. CONCLUSIONS Not all of tomorrow's teachers are being adequately prepared for their role in helping to address public health priorities. Educational policy does not appear to be supporting the priorities of public health policy, and this is a key barrier to health promotion training in ITE. Keywords children, educational settings, health promotion.
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