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Nevin Manimala Statistics

Long-term Trends in secondhand smoke exposure in high-rise housing serving low-income residents in New York City: Three-Year Evaluation of a federal smoking ban in public housing, 2018-2021

Nicotine Tob Res. 2022 Aug 30:ntac202. doi: 10.1093/ntr/ntac202. Online ahead of print.

ABSTRACT

INTRODUCTION: In July 2018, the U.S. Department of Housing and Urban Development passed a rule requiring public housing authorities to implement smoke-free housing (SFH) policies. We measured secondhand smoke (SHS) exposure immediately before, and repeatedly up to 36 months post-SFH policy implementation in a purposeful sample of 21 New York City (NYC) high-rise buildings (>15 floors): 10 NYC Housing Authority (NYCHA) buildings subject to the policy and 11 privately managed buildings in which most residents received housing vouchers (herein ‘Section 8’).

METHODS: We invited participants from non-smoking households (NYCHA n=157, Section 8 n=118) to enroll into a longitudinal air monitoring study, measuring (1) nicotine concentration with passive, bi-sulfate-coated filters, and (2) particulate matter (PM2.5) with low-cost particle sensors. We also measured nicotine concentrations and counted cigarette butts in common areas (n=91 stairwells and hallways). We repeated air monitoring sessions in households and common areas every 6 months, totaling six post-policy sessions.

RESULTS: After three years, we observed larger declines in nicotine concentration in NYCHA hallways than in Section 8, [difference-in-difference (DID) = -1.92 µg/m 3 (95% CI -2.98, -0.87), p=0.001]. In stairwells, nicotine concentration declines were larger in NYCHA buildings, but the differences were not statistically significant [DID= -1.10 µg/m 3 (95% CI -2.40, 0.18), p=0.089]. In households, there was no differential change in nicotine concentration (p=0.093) or in PM2.5 levels (p=0.385).

CONCLUSIONS: Nicotine concentration reductions in NYCHA common areas over three years may be attributable to the SFH policy, reflecting its gradual implementation over this time.

IMPLICATIONS: Continued air monitoring over multiple years has demonstrated that SHS exposure may be declining more rapidly in NYCHA common areas as a result of SFH policy adherence. This may have positive implications for improved health outcomes among those living in public housing, but additional tracking of air quality and studies of health outcomes are needed. Ongoing efforts by NYCHA to integrate the SFH policy into wider healthier-homes initiatives may increase policy compliance.

PMID:36041039 | DOI:10.1093/ntr/ntac202

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Nevin Manimala Statistics

Yield and risk associated with prolonged presurgical video-EEG monitoring: a systematic review

Epileptic Disord. 2022 Dec 1;24(6):1-13. doi: 10.1684/epd.2022.1484.

ABSTRACT

OBJECTIVE: Presurgical long-term video-EEG monitoring (LT-VEEG) is an important part of the presurgical evaluation in patients with focal epilepsy. Multiple seizures need to be recorded, often in limited time and with the need to taper anti-seizure medication (ASM). The aim of this study was to systematically study the yield – in terms of success – and risks associated with presurgical LT-VEEG, and to identify all previously reported contributing variables.

METHODS: A systematic review of the databases of PubMed Medline, Embase, Cochrane Central, and the Cochrane Database of Systematic Reviews were searched following the Preferred Reporting Items for Systematic Reviews (PRISMA) guideline. Publications about presurgical LT-VEEG reporting on variables contributing to yield and risk were included. Study characteristics of all included studies were extracted following a standardized template. Within these articles, studies presenting multivariable analyses of factors contributing to the risk of adverse events or the success of LT-VEEG were identified.

RESULTS: We found 36 articles reporting on LT-VEEG, including 4,703 presurgical patients, both children and adults. Presurgical LT-VEEG monitoring led to an average yield of 85%. Adverse events occurred with an averaged total event rate of 17%, but the type of included events was variable among studies. Factors reported to independently contribute to successful LT-VEEG were: baseline seizure frequency, a shorter interval from the most recent seizure, extratemporal lobe epilepsy, and no requirement for ASM reduction. Factors independently contributing to the occurrence of adverse events were: ASM tapering, a history of status epilepticus, a history of focal to bilateral tonic-clonic seizures, psychiatric comorbidity, and ASM taper rate.

SIGNIFICANCE: This study reveals that the data on factors contributing to yield and risk of adverse events is significant and variable, and often reported with inadequate statistics. Future research is warranted to develop guidelines for ASM withdrawal during presurgical video-EEG monitoring, taking predefined factors for success and risks of adverse events into account.

PMID:36039766 | DOI:10.1684/epd.2022.1484

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Nevin Manimala Statistics

Tuberculosis and Risk of Ischemic Stroke: A Nationwide Cohort Study

Stroke. 2022 Aug 30:101161STROKEAHA122039484. doi: 10.1161/STROKEAHA.122.039484. Online ahead of print.

ABSTRACT

BACKGROUND: Conflicting results exist regarding the risk of ischemic stroke in tuberculosis survivors. We aimed to estimate the risk of ischemic stroke using a nationwide population-based retrospective cohort.

METHODS: We gathered data from the Korean National Health Insurance Service on tuberculosis survivors and 1:1 age- and sex-matched non-tuberculosis cases. Eligible participants were followed up from 1 year after tuberculosis diagnosis to the date of ischemic stroke event, date of death, or until the end of the study period (December 31, 2018), whichever came first. Cox proportional hazard regression and stratified analyses were performed to identify any related factors.

RESULTS: During follow-up periods of 3.8 years for patients with tuberculosis and matched non-tuberculosis cases, 1.3% of patients with tuberculosis (941/72 863) and 1.0% of matched non-tuberculosis cases (707/72 863) developed ischemic stroke. The overall risk of ischemic stroke was higher in tuberculosis patients (adjusted hazard ratio: 1.22 [95% CI, 1.10-1.36]) compared with the matched non-tuberculosis cases. A stratified analysis showed that patients with tuberculosis had increased risk of ischemic stroke regardless of age, sex, smoking status, alcohol consumption, physical activity, body mass index, and Charlson Comorbidity Index score.

CONCLUSIONS: Tuberculosis survivors had a higher risk of ischemic stroke than their matched non-tuberculosis cases. The results of this study suggest that tuberculosis is a crucial infectious factor associated with increased incidence of ischemic stroke.

PMID:36039753 | DOI:10.1161/STROKEAHA.122.039484

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Nevin Manimala Statistics

Preparing healthcare, academic institutions and notified bodies for their involvement in the innovation of medical devices under the new European regulation

Expert Rev Med Devices. 2022 Aug 30. doi: 10.1080/17434440.2022.2118046. Online ahead of print.

ABSTRACT

INTRODUCTION: Favouring innovation by making timely medical technology available to people and by securing patients’ safety is a challenge.

AREAS COVERED: The new European medical device regulation (MDR) will have a central implication in the development of new devices and could affect their innovation and availability, as well as discourage investment in research within Europe.

EXPERT OPINION: Start-ups and small companies might not be able to cope with the increasing complexity and the required changes of perspective. Healthcare institutions are facing an increasing availability of complex technologies, while data on their clinical efficacy and cost-effectiveness are rarely provided.

A partnership/collaboration between healthcare institutions, academia and private industries will enhance their own specific interests with the common goal of improving overall health and quality of life. The complexity of the subject combined with the variety of specialists and stakeholders involved requires the implementation, in hospital centres of clinical excellence, of units dedicated to the whole path of the medical device innovation. Stakeholders should quickly provide adequate measures to facilitate the complex medical device innovation path under the more stringent MDR aimed to increase safety and quality of care.

PMID:36039712 | DOI:10.1080/17434440.2022.2118046

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Nevin Manimala Statistics

Interdisciplinary Quality Improvement Project Increases Vitamin D Supplementation in Infants

Pediatrics. 2022 Aug 30:e2021051252. doi: 10.1542/peds.2021-051252. Online ahead of print.

ABSTRACT

BACKGROUND: American Academy of Pediatrics guidelines recommend 400 IU of vitamin D supplementation daily for certain infants <1 year of age. We aimed to increase the proportion of reported appropriate vitamin D supplementation for infants born at our institution and those who followed up in our resident clinic through 6 months from 49% to 80% over 24 months.

METHODS: Our interdisciplinary quality improvement effort included vitamin D medication delivery before nursery discharge and family and staff education. The process measure was the percentage of families discharged from birth hospitalization with vitamin D and teaching. The outcome measure was the percentage of families reporting appropriate vitamin D supplementation at 2-, 4-, and 6-month well child visits. The balancing measure was the percentage of infants discharged from the nursery by 2 pm. Data were displayed on Statistical Process Control p charts and established rules for detecting special causes were applied.

RESULTS: Baseline and improvement data were collected for 587 hospital discharges and 220 outpatient encounters. The percentage of families discharged with vitamin D increased from 24.8% to 98% from 2016 to 2018. Percent of families reporting appropriate vitamin D supplementation at well child visits increased from 49% to 89% from 2016 to 2018. Overall, the percentage of discharges by 2 pm remained stable at 60%.

CONCLUSION: Bedside medication delivery and education in the newborn nursery improved reported vitamin D supplementation rates in the first 6 months of life. The intervention did not delay newborn hospital discharge.

PMID:36039691 | DOI:10.1542/peds.2021-051252

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Compare the performance of multiple machine learning models in predicting tacrolimus concentration for infant patients with living donor liver transplantation

Pediatr Transplant. 2022 Aug 30:e14379. doi: 10.1111/petr.14379. Online ahead of print.

ABSTRACT

BACKGROUND: This study aims to establish multiple ML models and compare their performance in predicting tacrolimus concentration for infant patients who received LDLT within 3 months after transplantation.

METHODS: Retrospectively collected basic information and relevant biochemical indicators of included infant patients. CMIA was used to determine tacrolimus C0 . PCR was used to determine the donors’ and recipients’ CYP3A5 genotypes. Multivariate stepwise regression analysis and stepwise elimination covariates were used for covariates selection. Thirteen machine learning algorithms were applied for the development of prediction models. APE, the ratio of the APE ≤3 ng ml-1 and ideal rate (the proportion of the predicted value with a relative error of 30% or less) were used to evaluate the predictive performance of the model.

RESULTS: A total of 163 infant patients were included in this study. In the case of the optimal combination of covariates, the Ridge model had the lowest APE, 2.01 (0.85, 3.35 ng ml-1 ). The highest ratio of the APE ≤3 ng ml-1 was the LAR model (71.77%). And the Ridge model showed the highest ideal rate (55.05%). For the Ridge model, GRWR was the most important predictor.

CONCLUSIONS: Compared with other ML models, the Ridge model had good predictive performance and potential clinical application.

PMID:36039686 | DOI:10.1111/petr.14379

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Nevin Manimala Statistics

A device and an app for the diagnosis and self-management of tinnitus

J Integr Bioinform. 2022 Aug 30. doi: 10.1515/jib-2022-0004. Online ahead of print.

ABSTRACT

Tinnitus is an annoying ringing in the ears, in varying shades and intensities. Tinnitus can affect a person’s overall health and social well-being (e.g., sleep problems, trouble concentrating, anxiety, depression and inability to work). The diagnostic procedure of tinnitus usually consists of three steps: an audiological examination, psychoacoustic measurement, and a disability evaluation. All steps are performed by physicians, who use specialised hardware/software and administer questionnaires. This paper presents a system, to be used by patients, for the diagnosis and self-management of tinnitus. The system is made up of an app and a device. The app is responsible for executing – through the device – a part of the required audiological and psychoacoustic examinations, as well as administering questionnaires that evaluate disability. The paper reviews the quality of the automated audiometric reporting and the user experience provided by the app. Descriptive and inferential statistics were used to support the findings. The results show that automated reporting is comparable with that of physicians and that user experience was improved by re-designing and re-developing the acufenometry of the app. As for the user experience, two experts in Human-Computer Interaction evaluated the first version of the app: their agreement was good (Cohen’s K = 0.639) and the average rating of the app was 1.43/2. Also patients evaluated the app in its initial version: the satisfactory tasks (audiometry and questionnaires) were rated as 4.31/5 and 4.65/5. The unsatisfactory task (acufenometry) was improved and the average rating increased from 2.86/5 to 3.96/5 (p = 0.0005). Finally, the general usability of the app was increased from the initial value of 73.6/100 to 85.4/100 (p = 0.0003). The strengths of the project are twofold. Firstly, the automated reporting feature, which – to the best of our knowledge – is the first attempt in this area. Secondly, the overall app usability, which was evaluated and improved during its development. In summary, the conclusion drawn from the conducted project is that the system works as expected, and despite some weaknesses, also the replication of the device would not be expensive, and it can be used in different scenarios.

PMID:36039680 | DOI:10.1515/jib-2022-0004

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Volumetric Assessment of the Anterior Digastric Muscles: A Deeper Understanding of the Volumetric Changes With Aging

Aesthet Surg J. 2022 Aug 30:sjac233. doi: 10.1093/asj/sjac233. Online ahead of print.

ABSTRACT

BACKGROUND: Recently we have seen an expanding practice of targeting the deeper, subplatysmal structures in the neck. In particular, interventions targeting the “bulky” anterior digastric (AD) muscle have been described with excellent results. However, much remains to be understood about the deep anatomy of the neck and the age-associated changes of the AD.

OBJECTIVES: To examine the relationship between AD volume and age.

METHODS: This retrospective study calculated the AD volume utilizing MRI segmentation in subjects between the ages of 20-92 with prior MRIs. Those with compromised imaging due to pathology or artifact were excluded. Subjects were divided into four age-defined cohorts for clinical applicability.

RESULTS: This study included 129 patients (male n=64) with a mean age of 52.3. The AD volume of the reference group was 3.2 cm3. A linear decrease in muscle volume was observed with age compared to the reference group: age 45-54 cohort, 2.95 cm3 (p=.3), 55-64 cohort, 2.7 cm3 (p=.05) and >65 cohort, 2.45 cm3 (p<0.001). Male sex (p=.0001) and laterality (p=.003) were associated with significantly larger volumes. Overweight and obese BMI classification was not associated with a significantly different volume than normal or underweight subjects (p=.067).

CONCLUSIONS: Our findings suggest an age-associated reduction in AD volume. Gender and laterality significantly affected volume, while BMI did not. While our results do not support the theory of muscular hypertrophy with aging, they reveal that the perceived bulkiness may be due to changes in the surrounding anatomy affecting the morphology of the AD and subsequent blunting of the cervicomental angle.

PMID:36039633 | DOI:10.1093/asj/sjac233

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Sample size calculation for the Andersen-Gill model comparing rates of recurrent events

Stat Med. 2022 Sep 10;41(20):4079. doi: 10.1002/sim.9518.

NO ABSTRACT

PMID:36039613 | DOI:10.1002/sim.9518

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Nevin Manimala Statistics

Comparative efficacy of intralesional 5 Flurouracil and intralesional Triamcinolone acetonide in localized plaque psoriasis

Dermatol Ther. 2022 Aug 30:e15796. doi: 10.1111/dth.15796. Online ahead of print.

ABSTRACT

BACKGROUND: Psoriasis is a papulosquamous disorder that causes significant social and psychological trauma to the patient. It is characterized by the presence of erythematous, indurated plaques covered with silvery-white scales. Despite the availability of several systemic agents that have been approved for the treatment of psoriasis, usually there are some residual lesions and there is a need to treat them for cosmetic reasons or symptomatic control.

AIMS: 1. Treatment of resistant localized psoriatic plaques or residuals after systemic treatment. 2. Recently, some intralesional agents have been used successfully for the treatment of psoriatic plaques as 5-FU, methotrexate, and botulinum toxin type-A, and nearly for 4 decades, no study focused on the effect of intralesional corticosteroids in the treatment of these psoriatic plaques. We decided to highlight their role and compare intralesional Triamcinolone to intralesional 5-FU regarding efficacy and safety in the treatment of plaque psoriasis.

METHODS: This study included 24 patients with localized plaque psoriasis. Each patient was treated by split-body therapy where one psoriatic plaque was treated with intralesional 5FU and another plaque with intralesional TAC. A total of three injections were given at two- week intervals and follow up was regularly every 2 weeks up to 12 weeks.

RESULTS: There was a statistically significant difference between both groups (p = 0.008) as the response rate on 5-FU side was 12.5% with no response, 29.2% with a moderate response, 41.7% with an excellent response, and 16.7% with a complete clearance, while on the TAC side it was16.7% with a moderate response, 20.8% with an excellent response and 62.5% with a complete clearance. Hyperpigmentation was the most irritating side effect of 5-FU that occurred. Pain, during and after injection, was greater in 5-FU group. Hypopigmentation and atrophy only occurred in TAC group in some patients but it seems to be reversible and not disfiguring.

CONCLUSION: 1-Intralesional TAC injection may have more efficacy and less side effects than 5-FU injection in the treatment of localized plaque psoriasis. Hyperpigmentation and pain were the most irritating side effects of 5-FU 2-Intralesional TAC can be effective in the treatment of localized psoriatic plaques with minimal side effects, especially in patients not suitable for systemic agents.

PMID:36039604 | DOI:10.1111/dth.15796