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The Science of the Total Environment Mar 2024A growing body of literature demonstrated an association between exposure to ambient air pollution and maternal health outcomes with mixed findings. The objective of... (Review)
Review
A growing body of literature demonstrated an association between exposure to ambient air pollution and maternal health outcomes with mixed findings. The objective of this umbrella review was to systematically summarize the global evidence on the effects of air pollutants on maternal health outcomes. We adopted the Joanna Briggs Institute (JBI) methodology and Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting standards for this umbrella review. We conducted a comprehensive search across six major electronic databases and other sources to identify relevant systematic reviews and meta-analyses (SRMAs) published from the inception of these databases up to June 30, 2023. Out of 2399 records, 20 citations matched all pre-determined eligibility criteria that include SRMAs focusing on exposure to air pollution and its impact on maternal health, reported quantitative measures or summary effects, and published in peer-reviewed journals in the English language. The risk of bias of included SRMAs was evaluated based on the JBI critical appraisal checklist. All SRMAs reported significant positive associations between ambient air pollution and several maternal health outcomes. Specifically, particulate matter (PM), SO, and NO demonstrated positive associations with gestational diabetes mellitus (GDM). Moreover, PM and NO showed a consistent positive relationship with hypertensive disorder of pregnancy (HDP) and preeclampsia (PE). Although limited, available evidence highlighted a positive correlation between PM and gestational hypertension (GH) and spontaneous abortion (SAB). Only one meta-analysis reported the effects of air pollution on maternal postpartum depression (PPD) where only PM showed a significant positive relationship. Limited studies were identified from low- and middle-income countries (LMICs), suggesting evidence gap from the global south. This review necessitates further research on underrepresented regions and communities to strengthen evidence on this critical issue. Lastly, interdisciplinary policymaking and multilevel interventions are needed to alleviate ambient air pollution and associated maternal health disparities.
Topics: Female; Humans; Pregnancy; Air Pollutants; Air Pollution; Environmental Exposure; Outcome Assessment, Health Care; Particulate Matter; Pre-Eclampsia; Systematic Reviews as Topic
PubMed: 38199356
DOI: 10.1016/j.scitotenv.2023.169792 -
BMJ (Clinical Research Ed.) Jul 2023To review the evidence on trends and impacts of private equity (PE) ownership of healthcare operators.
OBJECTIVE
To review the evidence on trends and impacts of private equity (PE) ownership of healthcare operators.
DESIGN
Systematic review.
DATA SOURCES
PubMed, Web of Science, Embase, Scopus, and SSRN.
ELIGIBILITY CRITERIA FOR STUDY SELECTION
Empirical research studies of any design that evaluated PE owned healthcare operators.
MAIN OUTCOME MEASURES
The main outcome measures were impact of PE ownership on health outcomes, costs to patients or payers, costs to operators, and quality. The secondary outcome measures were trends and prevalence of PE ownership of healthcare operators.
DATA SYNTHESIS
Studies were classified as finding either beneficial, harmful, mixed, or neutral impacts of PE ownership on main outcome measures. Results across studies were narratively synthesized and reported. Risk of bias was evaluated using ROBINS-I (Risk Of Bias In Non-randomised Studies of Interventions).
RESULTS
The electronic search identified 1778 studies, with 55 meeting the inclusion criteria. Studies spanned eight countries, with most (n=47) analyzing PE ownership of healthcare operators in the US. Nursing homes were the most commonly studied healthcare setting (n=17), followed by hospitals and dermatology settings (n=9 each); ophthalmology (n=7); multiple specialties or general physician groups (n=5); urology (n=4); gastroenterology and orthopedics (n=3 each); surgical centers, fertility, and obstetrics and gynecology (n=2 each); and anesthesia, hospice care, oral or maxillofacial surgery, otolaryngology, and plastics (n=1 each). Across the outcome measures, PE ownership was most consistently associated with increases in costs to patients or payers. Additionally, PE ownership was associated with mixed to harmful impacts on quality. These outcomes held in sensitivity analyses in which only studies with moderate risk of bias were included. Health outcomes showed both beneficial and harmful results, as did costs to operators, but the volume of studies for these outcomes was too low for conclusive interpretation. In some instances, PE ownership was associated with reduced nurse staffing levels or a shift towards lower nursing skill mix. No consistently beneficial impacts of PE ownership were identified.
CONCLUSIONS
Trends in PE ownership rapidly increased across almost all healthcare settings studied. Such ownership is often associated with harmful impacts on costs to patients or payers and mixed to harmful impacts on quality. Owing to risk of bias and frequent geographic focus on the US, conclusions might not be generalizable internationally.
SYSTEMATIC REVIEW REGISTRATION
PROSPERO CRD42022329857.
Topics: Humans; Ownership; Hospitals; Nursing Homes; Health Services; Outcome Assessment, Health Care
PubMed: 37468157
DOI: 10.1136/bmj-2023-075244 -
Clinical Anatomy (New York, N.Y.) Jan 2024Ventricular false tendons are fibromuscular structures that travel across the ventricular cavity. Left ventricular false tendons (LVFTs) have been examined through gross... (Meta-Analysis)
Meta-Analysis Review
Ventricular false tendons are fibromuscular structures that travel across the ventricular cavity. Left ventricular false tendons (LVFTs) have been examined through gross dissection and echocardiography. This study aimed to comprehensively evaluate the prevalence, morphology, and clinical importance of ventricular false tendons using a systematic review. In multiple studies, these structures have had a wide reported prevalence ranging from less than 1% to 100% of cases. This meta-analysis found the overall pooled prevalence of LVFTs to be 30.2%. Subgroup analysis indicated the prevalence to be 55.1% in cadaveric studies and 24.5% in living patients predominantly studied by echocardiography. Morphologically, left and right ventricular false tendons have been classified into several types based on their location and attachments. Studies have demonstrated false tendons have important clinical implications involving innocent murmurs, premature ventricular contractions, early repolarization, and impairment of systolic and diastolic function. Despite these potential complications, there is evidence demonstrating that the presence of false tendons can lead to positive clinical outcomes.
Topics: Humans; Heart Ventricles; Heart Defects, Congenital; Echocardiography; Clinical Relevance; Dissection
PubMed: 37819143
DOI: 10.1002/ca.24116 -
Journal of Dentistry Mar 2024The aim of this review was to analyze the clinical treatment outcomes of cracked teeth (CT) retaining vital dental pulp (CT-VDP) or undergoing root canal treatment... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVES
The aim of this review was to analyze the clinical treatment outcomes of cracked teeth (CT) retaining vital dental pulp (CT-VDP) or undergoing root canal treatment (CT-RCT).
SOURCES
A systematic search was conducted in Medline, Embase, PubMed, and Cochrane Library databases.
STUDY SELECTION
Studies evaluating tooth survival rate (TSR), pulp survival rate (PSR), and success rate (SR) with at least a one-year follow-up were included. The risk of bias was evaluated with the Newcastle-Ottawa scale.
DATA
Twenty-seven studies underwent qualitative analysis, 26 of which were included in the meta-analysis. SR of monitoring without restorative treatments was 80 % at three years. TSR of CT-VDP was 92.8-97.8 % at 1‒6 years, PSR of CT-VDP was 85.6‒90.4 % at 1‒3 years, and SR of CT-VDP was 80.6‒89.9 % at 1‒3 years; TSR of CT-RCT was 90.5‒91.1 % at 1‒2 years, and SR of CT-RCT was 83.0‒91.2 % at 1‒4 years. Direct restorations without cuspal coverage for CT-VDP increased the risk ratio (RR) of pulpal complications (RR=3.2, 95 % CI: 1.51-6.82, p = 0.002) and tooth extraction (RR=8.1, 95 % CI: 1.05-62.5, p = 0.045) compared with full-crown restorations. The CT-RCT without full-crown restorations had an 11.3-fold higher risk of tooth extraction than the CT-RCT with full-crown restorations (p < 0.001).
CONCLUSIONS
Monitoring without restorative treatments might be an option for the CT without any symptoms. Direct restorations without cuspal coverage for the CT-VDP could significantly increase the RR of pulpal complications and tooth extraction compared with full-crown restorations. Full-crown restorations are strongly recommended for the CT-RCT.
CLINICAL SIGNIFICANCE
Monitoring without restorative treatments could be a viable option for the CT without any symptoms. Full-crown restorations are strongly recommended for the CT with any symptoms and the CT-RCT.
Topics: Humans; Dental Restoration, Permanent; Crowns; Treatment Outcome; Root Canal Therapy; Cracked Tooth Syndrome
PubMed: 38272437
DOI: 10.1016/j.jdent.2024.104843 -
Journal of Child Psychology and... Sep 2023Children and young people (CYP) with comorbid physical and/or mental health conditions often struggle to receive a timely diagnosis, access specialist mental health... (Review)
Review
BACKGROUND
Children and young people (CYP) with comorbid physical and/or mental health conditions often struggle to receive a timely diagnosis, access specialist mental health care, and more likely to report unmet healthcare needs. Integrated healthcare is an increasingly explored model to support timely access, quality of care and better outcomes for CYP with comorbid conditions. Yet, studies evaluating the effectiveness of integrated care for paediatric populations are scarce.
AIM AND METHODS
This systematic review synthesises and evaluates the evidence for effectiveness and cost-effectiveness of integrated care for CYP in secondary and tertiary healthcare settings. Studies were identified through systematic searches of electronic databases: Medline, Embase, PsychINFO, Child Development and Adolescent Studies, ERIC, ASSIA and British Education Index.
FINDINGS
A total of 77 papers describing 67 unique studies met inclusion criteria. The findings suggest that integrated care models, particularly system of care and care coordination, improve access and user experience of care. The results on improving clinical outcomes and acute resource utilisation are mixed, largely due to the heterogeneity of studied interventions and outcome measures used. No definitive conclusion can be drawn on cost-effectiveness since studies focused mainly on costs of service delivery. The majority of studies were rated as weak by the quality appraisal tool used.
CONCLUSIONS
The evidence of on clinical effectiveness of integrated healthcare models for paediatric populations is limited and of moderate quality. Available evidence is tentatively encouraging, particularly in regard to access and user experience of care. Given the lack of specificity by medical groups, however, the precise model of integration should be undertaken on a best-practice basis taking the specific parameters and contexts of the health and care environment into account. Agreed practical definitions of integrated care and associated key terms, and cost-effectiveness evaluations are a priority for future research.
Topics: Adolescent; Humans; Child; Tertiary Healthcare; Outcome Assessment, Health Care; Cost-Benefit Analysis; Cost-Effectiveness Analysis; Delivery of Health Care, Integrated
PubMed: 36941107
DOI: 10.1111/jcpp.13786 -
The Laryngoscope Nov 2023Age-related vocal atrophy (ARVA) can dramatically affect voice, communication, and quality of life. The objectives of this systematic review were to (1) determine... (Review)
Review
OBJECTIVE
Age-related vocal atrophy (ARVA) can dramatically affect voice, communication, and quality of life. The objectives of this systematic review were to (1) determine whether treatments for ARVA were superior to controls (2) compare the relative efficacy of procedural and behavioral treatments (3) review the various types of outcome measures, and (4) evaluate the quality of studies.
REVIEW METHODS
The literature was searched using strategies designed by a medical librarian (2/18/21, updated 3/9/22). Studies investigating treatments for bilateral vocal atrophy were included. Studies involving unilateral atrophy, presbyphonia (without endoscopic findings), or an absent comparator group were excluded. The Preferred Reporting Items for Systematic Reviews and Meta-analyses checklist was used to guide this study.
RESULTS
After applying the inclusion/exclusion criteria, 8 articles remained, including 4 randomized trials and 4 cohort studies, and a narrative synthesis was performed. Surgical and behavioral treatments for ARVA appeared to be superior to control groups, based on specific outcome measures. However, the superiority of these treatments over controls was not uniformly observed across multiple outcome measures. When comparing different treatments, superiority could not be established based on the quality and completeness of the studies included in the systematic review. Outcome measures also varied between individual studies. Finally, the risk of bias was analyzed and scored. Consistent point deductions among reviewed studies were noted.
CONCLUSIONS
When comparing treatments for ARVA. Surgery and voice therapy were both superior to control groups based on specific outcome measures from different domains. Superiority of one treatment could not be established.
LEVEL OF EVIDENCE
N/A Laryngoscope, 133:2846-2855, 2023.
Topics: Humans; Quality of Life; Voice; Voice Quality; Outcome Assessment, Health Care; Atrophy
PubMed: 36912397
DOI: 10.1002/lary.30653 -
Seminars in Arthritis and Rheumatism Oct 2023To assess real-world comparative effectiveness studies of biologic (b) and targeted synthetic (ts) disease-modifying antirheumatic drugs (DMARDs) in adults with... (Review)
Review
OBJECTIVE
To assess real-world comparative effectiveness studies of biologic (b) and targeted synthetic (ts) disease-modifying antirheumatic drugs (DMARDs) in adults with rheumatoid arthritis (RA) through a systematic review.
METHODS
We searched Medline for journal articles (2001-2021) and Embase® for abstracts presented at the European Alliance of Associations for Rheumatology and American College of Rheumatology (ACR) 2020 and 2021 annual meetings on non-randomized studies comparing the effectiveness of b/tsDMARDs using ACR-recommended disease activity measures, measures of functional status, and patient-reported outcomes (HAQ, PROMIS PF, patient pain, Patient and Physician Global Assessment of disease activity). Methodological heterogeneity between studies precluded meta-analyses. Risk of bias was assessed using the Cochrane Risk Of Bias In Non-randomized Studies of Interventions-I tool.
RESULTS
Of 1283 records screened, 68 were selected for data extraction, of which 1 was excluded due to critical risk of bias. Most studies were multicenter observational cohort/registry studies (n = 60) and were published between 2011 and 2021 (n = 60). Mean or median reported RA duration was between 6 and 15 years. Disease Activity Score in 28 joints (46 studies), Clinical Disease Activity Index (37 studies), and Health Assessment Questionnaire-Disability Index (32 studies) were the most common outcomes used in clinical practice, with regional differences identified. The most common comparison was between tumor necrosis factor inhibitors (TNFis) and non-TNFi bDMARDs (35 studies). There were no evident differences between b/tsDMARDs in clinical effectiveness.
CONCLUSION
This systematic review summarizing real-world evidence from a very large number of global studies found there are many effective options for the treatment of RA, but relatively less evidence to support the use of any one b/tsDMARD or drug class over another. Treatment for patients with RA should be tailored to suit individual clinical profiles. Further research is needed to identify whether specific patient subgroups may benefit from specific drug classes.
Topics: Humans; Arthritis, Rheumatoid; Antirheumatic Agents; Treatment Outcome; Biological Products; Multicenter Studies as Topic
PubMed: 37573754
DOI: 10.1016/j.semarthrit.2023.152249 -
Annals of Plastic Surgery Dec 2023Questionnaire-based research is ubiquitous, and careful survey design is paramount to obtaining meaningful results. This study characterizes the use of...
INTRODUCTION
Questionnaire-based research is ubiquitous, and careful survey design is paramount to obtaining meaningful results. This study characterizes the use of questionnaire-based studies in the current hand surgery literature.
METHODS
We conducted a systematic review of questionnaire-based studies published between 2010 and 2020 in 4 major American journals. We included studies in which questionnaire results represented a primary outcome. Validation status of the survey instruments was assessed, and topics of study were categorized. Nonvalidated instruments were assessed for reporting of parameters to limit bias.
RESULTS
Three hundred fifty-four studies were identified, including 186 (52.5%) using validated instruments, 98 (27.7%) using nonvalidated instruments, 64 (18.1%) using a combination, and 6 (1.7%) that sought to validate an instrument. Of the studies that used validated instruments, 84.9% focused on patient-reported outcomes and 15.1% focused on other patient-centered topics. In contrast, of studies that used nonvalidated instruments, 44.9% focused on physician practice, 30.6% were patient centered, and 13.3% focused on education. Among nonvalidated questionnaires, 74.5% did not report predistribution testing, 49.0% did not publish full survey questions, and 33.3% did not report response rates.
CONCLUSIONS
Survey research is common in the hand surgery literature. Forty-six percent of examined studies included at least some nonvalidated elements. Techniques to limit bias in the design and reporting of studies based on nonvalidated surveys were not uniformly disclosed. Identified areas for improvement include (1) pilot testing to assess for question clarity; (2) publication of full texts to improve transparency; and (3) better reporting on sample selection, respondents, and nonrespondents.
Topics: Humans; Surveys and Questionnaires; Research Design; Physicians; Patient Reported Outcome Measures
PubMed: 38079321
DOI: 10.1097/SAP.0000000000003656 -
PharmacoEconomics Dec 2023Missing data in costs and/or health outcomes and in confounding variables can create bias in the inference of health economics and outcomes research studies, which in...
BACKGROUND
Missing data in costs and/or health outcomes and in confounding variables can create bias in the inference of health economics and outcomes research studies, which in turn can lead to inappropriate policies. Most of the literature focuses on handling missing data in randomized controlled trials, which are not necessarily always the data used in health economics and outcomes research.
OBJECTIVES
We aimed to provide an overview on missing data issues and how to address incomplete data and report the findings of a systematic literature review of methods used to deal with missing data in health economics and outcomes research studies that focused on cost, utility, and patient-reported outcomes.
METHODS
A systematic search of papers published in English language until the end of the year 2020 was carried out in PubMed. Studies using statistical methods to handle missing data for analyses of cost, utility, or patient-reported outcome data were included, as were reviews and guidance papers on handling missing data for those outcomes. The data extraction was conducted with a focus on the context of the study, the type of missing data, and the methods used to tackle missing data.
RESULTS
From 1433 identified records, 40 papers were included. Thirteen studies were economic evaluations. Thirty studies used multiple imputation with 17 studies using multiple imputation by chained equation, while 15 studies used a complete-case analysis. Seventeen studies addressed missing cost data and 23 studies dealt with missing outcome data. Eleven studies reported a single method while 20 studies used multiple methods to address missing data.
CONCLUSIONS
Several health economics and outcomes research studies did not offer a justification of their approach of handling missing data and some used only a single method without a sensitivity analysis. This systematic literature review highlights the importance of considering the missingness mechanism and including sensitivity analyses when planning, analyzing, and reporting health economics and outcomes research studies.
Topics: Humans; Data Interpretation, Statistical; Bias; Research Design; Cost-Benefit Analysis; Outcome Assessment, Health Care
PubMed: 37490207
DOI: 10.1007/s40273-023-01297-0 -
Dermatologic Surgery : Official... Jun 2024Striae are fine lines on the body that occur following rapid skin stretching (i.e., following pregnancy, puberty, weight change). The aim of this systematic review was...
BACKGROUND
Striae are fine lines on the body that occur following rapid skin stretching (i.e., following pregnancy, puberty, weight change). The aim of this systematic review was to assess the current literature on treatment outcomes associated with striae.
OBJECTIVE
(1) To assess the efficacy and safety of different treatment options reported for striae and (2) to determine the most efficient treatment options for each subtype of striae.
METHODS
A systematic search was performed on MEDLINE, Embase, and PubMed with no publication date or language restrictions. All articles with original data and treatment outcomes were included.
RESULTS
One hundred fifty-one studies on the treatment of striae met inclusion criteria (83% female, mean age at diagnosis = 30.2), and 4,806 treatment outcomes of striae were described. Energy-based devices were the most reported modality (56%; n = 2,699/4,806), followed by topicals (19%; n = 919/4,806) and combinations (12%; n = 567/4,806). The highest rates of complete response were injection-based devices for striae distensae (7%; n = 12/172), CO 2 lasers for striae alba (4%; n = 12/341), and platelet-rich plasma injections for striae rubra (31%; n = 4/13).
CONCLUSION
Treatment options for striae are varied, likely indicating a lack of effective treatments due to the diversity in striae subtypes. Improved outcomes in striae management may be achieved with additional research on factors that predict treatment response.
Topics: Female; Humans; Laser Therapy; Striae Distensae; Treatment Outcome; Male
PubMed: 38452322
DOI: 10.1097/DSS.0000000000004151