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Nevin Manimala Statistics

A Vaping Cessation Text Message Program for Adolescent E-Cigarette Users: A Randomized Clinical Trial

JAMA. 2024 Aug 7. doi: 10.1001/jama.2024.11057. Online ahead of print.

ABSTRACT

IMPORTANCE: E-cigarettes are the most commonly used tobacco product among adolescents. Despite known harms of nicotine exposure among teens, there are no empirically tested vaping cessation interventions.

OBJECTIVE: To compare the effectiveness of a text message program for nicotine vaping cessation among adolescents with assessment-only control.

DESIGN, SETTING, AND PARTICIPANTS: A parallel, 2-group, double-blind, individually randomized clinical trial with follow-ups at 1 and 7 months after randomization was conducted from October 1, 2021, to October 18, 2023. Participants were recruited via social media ads; the intervention was delivered via text message; and assessments were completed online or by telephone. Eligible individuals were US residents aged 13 to 17 years who reported past 30-day e-cigarette use, were interested in quitting within 30 days, and owned a mobile phone with an active text message plan. To optimize study retention, all participants received monthly assessments via text message about e-cigarette use.

INTERVENTIONS: Assessment-only controls (n = 744) received only study retention text messages. Intervention participants (n = 759) also received an automated, interactive text message program for vaping cessation that delivers cognitive and behavioral coping skills training and social support.

MAIN OUTCOMES AND MEASURES: The primary outcome was self-reported 30-day point-prevalence abstinence from vaping at 7 months analyzed as intention-to-treat, with missingness coded as vaping.

RESULTS: Among n = 1503 adolescents randomized, average age was 16.4 (SD, 0.8) years. The sample was 50.6% female, 42.1% male, and 7.4% nonbinary/other; 10.2% Black/African American, 62.6% White, 18.5% multiracial, and 8.7% another race; 16.2% Hispanic; 42.5% sexual minority; and 76.2% vaped within 30 minutes of waking. The 7-month follow-up rate was 70.8%. Point-prevalence abstinence rates were 37.8% (95% CI, 34.4%-41.3%) among intervention participants and 28.0% (95% CI, 24.9%-31.3%) among control participants (relative risk, 1.35 [95% CI, 1.17-1.57]; P < .001). No baseline variables moderated the treatment-outcome relationship. There was no evidence that adolescents who quit vaping transitioned to combustible tobacco products.

CONCLUSIONS AND RELEVANCE: A tailored, interactive text message intervention increased self-reported vaping cessation rates among adolescents recruited via social media channels.

TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04919590.

PMID:39110436 | DOI:10.1001/jama.2024.11057

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Long-Term Effectiveness and Reasons for Discontinuation of Dupilumab in Patients With Atopic Dermatitis

JAMA Dermatol. 2024 Aug 7. doi: 10.1001/jamadermatol.2024.2517. Online ahead of print.

ABSTRACT

IMPORTANCE: Limited data are available on the long-term effectiveness and safety of dupilumab for atopic dermatitis (AD) in daily practice.

OBJECTIVE: To evaluate clinical effectiveness and reasons for discontinuation of dupilumab treatment in children, adults, and older adults with AD with up to 5 years of treatment in daily practice.

DESIGN, SETTING, AND PARTICIPANTS: This prospective multicenter cohort study was conducted using the BioDay registry (4 academic and 10 nonacademic hospitals in the Netherlands) to identify patients with AD of all ages who were treated with dupilumab between October 2017 and December 2022.

MAIN OUTCOMES AND MEASURES: Clinical effectiveness was evaluated by the Eczema Area and Severity Index (EASI), Investigator Global Assessment (IGA), and numeric rating scale (NRS) for pruritus, stratified by children (<18 years), adults (18-64 years), and older adults (≥65 years). In addition, time to response, treatment responders, EASI subscores, second treatment episodes, and thymus- and activation-related chemokine and eosinophil levels were assessed. For patients who discontinued dupilumab, the reason for discontinuation was evaluated.

RESULTS: In total, 1286 patients with AD (median [IQR] age, 38 [26-54] years; 726 [56.6%] male) were treated with dupilumab, including 130 children, 1025 adults, and 131 older adults. The median (IQR) follow-up time was 87.5 (32.0-157.0) weeks. Most patients maintained controlled AD, with EASI of 7 or lower and NRS for pruritus of 4 or lower varying between 78.6% and 92.3% and 72.2% and 88.2% for up to 5 years of treatment, respectively, while up to 70.5% of all patients prolonged the dosing interval to mostly 300 mg every 3 or 4 weeks. Mean EASI and NRS for pruritus were 2.7 (95% CI, 1.2-4.2) and 3.5 (95% CI, 2.7-4.3), respectively, after 5 years of treatment. Statistically significant differences between age groups were found over time for EASI and IGA; however, differences were rather small (week 52: EASI, 0.3-1.6; IGA, 0.12-0.26). No statistically significant differences between age groups were found for NRS for pruritus. Median thymus- and activation-related chemokine levels considerably decreased from 1751 pg/mL (95% CI, 1614-1900 pg/mL) to 390 pg/mL (95% CI, 368-413 pg/mL) after 6 months of treatment and remained low. Median eosinophil levels temporarily increased up to week 16, with a subsequently statistically significant decrease over time. In total, 306 patients (23.8%) discontinued dupilumab after a median (IQR) of 54.0 (29.0-110.00) weeks, with adverse events among 98 patients (7.6%) and ineffectiveness among 85 patients (6.6%) as the most frequently reported reasons. Forty-one patients (3.2%) restarted dupilumab, and most of these patients recaptured response.

CONCLUSIONS AND RELEVANCE: In this cohort study with up to 5 years of follow-up, dupilumab maintained its clinical effectiveness, while two-thirds of patients tapered to a dosing interval of every 3 or 4 weeks. Treatment was discontinued in 23.8% of patients mainly due to adverse events and/or ineffectiveness.

PMID:39110432 | DOI:10.1001/jamadermatol.2024.2517

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High segregation and diminished global integration in large-scale brain functional networks enhances the perceptual binding of cross-modal stimuli

Cereb Cortex. 2024 Aug 1;34(8):bhae323. doi: 10.1093/cercor/bhae323.

ABSTRACT

Speech perception requires the binding of spatiotemporally disjoint auditory-visual cues. The corresponding brain network-level information processing can be characterized by two complementary mechanisms: functional segregation which refers to the localization of processing in either isolated or distributed modules across the brain, and integration which pertains to cooperation among relevant functional modules. Here, we demonstrate using functional magnetic resonance imaging recordings that subjective perceptual experience of multisensory speech stimuli, real and illusory, are represented in differential states of segregation-integration. We controlled the inter-subject variability of illusory/cross-modal perception parametrically, by introducing temporal lags in the incongruent auditory-visual articulations of speech sounds within the McGurk paradigm. The states of segregation-integration balance were captured using two alternative computational approaches. First, the module responsible for cross-modal binding of sensory signals defined as the perceptual binding network (PBN) was identified using standardized parametric statistical approaches and their temporal correlations with all other brain areas were computed. With increasing illusory perception, the majority of the nodes of PBN showed decreased cooperation with the rest of the brain, reflecting states of high segregation but reduced global integration. Second, using graph theoretic measures, the altered patterns of segregation-integration were cross-validated.

PMID:39110411 | DOI:10.1093/cercor/bhae323

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The proactive and reactive mechanisms of learned spatial suppression

Cereb Cortex. 2024 Aug 1;34(8):bhae333. doi: 10.1093/cercor/bhae333.

ABSTRACT

Selection history refers to the notion that previous allocations of attention or suppression have the potential to elicit lingering and enduring selection biases that are isolated from goal-driven or stimulus-driven attention. However, in the singleton detection mode task, manipulating the selection history of distractors cannot give rise to pure proactive inhibition. Therefore, we employed a combination of a working memory task and a feature search mode task, simultaneously recording cortical activity using EEG, to investigate the mechanisms of suppression guided by selection history. The results from event-related potential and reaction times showed an enhanced inhibitory performance when the distractor was presented at the high-probability location, along with instances where the target appeared at the high-probability location of distractors. These findings demonstrate that a generalized proactive inhibition bias is learned and processed independent of cognitive resources, which is supported by selection history. In contrast, reactive rejection toward the low-probability location was evident through the Pd component under varying cognitive resource conditions. Taken together, our findings indicated that participants learned proactive inhibition when the distractor was at the high-probability location, whereas reactive rejection was involved at low-probability location.

PMID:39110410 | DOI:10.1093/cercor/bhae333

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Inference for restricted mean survival time as a function of restriction time under length-biased sampling

Stat Methods Med Res. 2024 Aug 7:9622802241267812. doi: 10.1177/09622802241267812. Online ahead of print.

ABSTRACT

The restricted mean survival time (RMST) is often of direct interest in clinical studies involving censored survival outcomes. It describes the area under the survival curve from time zero to a specified time point. When data are subject to length-biased sampling, as is frequently encountered in observational cohort studies, existing methods cannot estimate the RMST for various restriction times through a single model. In this article, we model the RMST as a continuous function of the restriction time under the setting of length-biased sampling. Two approaches based on estimating equations are proposed to estimate the time-varying effects of covariates. Finally, we establish the asymptotic properties for the proposed estimators. Simulation studies are performed to demonstrate the finite sample performance. Two real-data examples are analyzed by our procedures.

PMID:39110407 | DOI:10.1177/09622802241267812

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Is a Problem-Solving Intervention with Workplace Involvement for Employees on Sickness Absence Due to Common Mental Disorders More Effective, than Care as Usual, in Reducing Sickness Absence Days? Results of a Cluster-Randomised Controlled Trial in Primary Health Care

J Occup Rehabil. 2024 Aug 7. doi: 10.1007/s10926-024-10229-4. Online ahead of print.

ABSTRACT

PURPOSE: The aim was to evaluate the effectiveness of a problem-solving intervention with workplace involvement (PSI-WPI) added to care as usual (CAU) in reducing sickness absence days among employees with common mental disorders compared to CAU alone in Swedish primary health care on a monthly basis over 18-months follow-up.

METHODS: We conducted a cluster-randomised controlled trial including 197 employees blinded to allocation (85 PSI-WPI and 112 CAU). As sickness absence data was skewed and over-dispersed, generalised estimating equations was used to enable a comparison between the intervention and control group for each month of the follow-up period.

RESULTS: The median number of sickness absence days over the 18-month follow-up was 78 days, inter-quartile range (IQR) 18-196 for employees receiving PSI-WPI and 64 days, IQR 18-161 for employees receiving CAU. The time x group generalised estimating equations analysis showed no statistically significant difference in sickness absence days per month.

CONCLUSION: The addition of a PSI-WPI to CAU was not more effective in reducing sickness absence days. This may be explained by the primary health care context, lack of specialisation in occupational health and the Swedish social insurance system with specific time limits.

TRIAL REGISTRATION: The trial was registered at ClinicalTrials.gov, identifier: NCT03346395 on January 12th, 2018.

PMID:39110387 | DOI:10.1007/s10926-024-10229-4

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Nevin Manimala Statistics

Impact of thyroid function on coagulation and venous thromboembolism: a two-sample mendelian randomization study

J Thromb Thrombolysis. 2024 Aug 7. doi: 10.1007/s11239-024-03025-7. Online ahead of print.

ABSTRACT

OBJECTIVE: The association between thyroid function, coagulation and venous thromboembolism (VTE) has been reported in observational studies with conflicting findings. This study aimed to elucidate the causal effects of thyroid function on coagulation and VTE from a genetic perspective.

METHODS: Two sample Mendelian randomization analysis was conducted using summary statistics from genome-wide association studies in a European population. Coagulation status was associated with nine coagulation-related factors (F VIII, F IX, F XI, Fibrinogen, Antithrombin-III, Thrombomodulin, Plasminogen activator inhibitor-1, Protein C and Protein S). Inverse variance weighting with random effect method was used as the main analytic approach with MR-Egger, weighted median, simple mode and weighted mode methods serving as complements. Sensitivity analyses including heterogeneity test, horizontal pleiotropy test and leave-one-out analysis were conducted to further assess the reliability of results.

RESULTS: No genetic causal effects of thyroid function on VTE (including pulmonary embolism and deep venous thrombosis) were found. Genetically, hyperthyroidism was suggestively related to decreased Antithrombin-III (β: -0.04 [95% CI: -0.06 to – 0.01], p = 0.010) and Protein C (β: -0.03 [95% CI: -0.06 to 0.00], p = 0.045). No notable associations were observed between other thyroid function parameters and coagulation-related factors.

CONCLUSION: We provide suggestive genetic evidence supporting the causal effect of hyperthyroidism on decreased level of anticoagulant factors including Antithrombin-III and Protein C. However, whether this genetic causality could lead to clinically significant hypercoagulable state and increased risk of VTE in hyperthyroid population needs to be further addressed.

PMID:39110374 | DOI:10.1007/s11239-024-03025-7

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The first outbreak of Lumpy Skin Disease in Indonesia

Trop Anim Health Prod. 2024 Aug 7;56(7):237. doi: 10.1007/s11250-024-04067-y.

ABSTRACT

This study describes the first outbreak of Lumpy Skin Disease (LSD) in cattle in the Bengkalis region, Indonesia, and vaccination to control the epidemic. Data on the outbreak and vaccination was obtained from the local veterinary authority of the Bengkalis region, Indonesia. Climatological data was provided by the Meteorological, Climatological, and Geophysical Agency of Riau Province. Over the 5.5 months, the outbreak caused 10.4% (94/906) morbidity and 0.6% (6/906) mortality of cattle on infected farms. Temporally, three epidemic waves occurred during the outbreak period. Villages with cattle populations of > 150 animals (n = 36) were 5.3 times more likely to be infected with LSD compared to villages with smaller cattle populations (n = 107) (CI: 2.56-10.90, P < 0.01). The vaccination campaign covered 43.8% of cattle in villages within a 10 km radius of the cases. However, vaccination in villages with larger cattle populations (n = 29) was 0.63 less likely to cover 50% of the cattle populations compared to villages with smaller cattle populations (n = 41) (CI: 0.39-1.02, P = 0.05). By the time the first two and the major waves ceased, vaccination had covered only 0.0% (n = 6036), 27.8% (n = 6,036) and 9.7% (n = 5,697) of the cattle in the 10 km radius of the respective spatial clusters. The outbreak was statistically associated with rainfall and its interaction with temperature (F(2, 13) = 5.822, R2 = 0.47, P = 0.016). This study indicates that the LSD outbreak had low morbidity and mortality. Despite the low vaccination rate, the outbreak ceased, possibly due to plummeting of the abundance of insect vectors.

PMID:39110359 | DOI:10.1007/s11250-024-04067-y

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Impact of the COVID-19 pandemic and migration on tuberculosis notifications: a retrospective analysis with 5-year data from three centers

Eur J Clin Microbiol Infect Dis. 2024 Aug 7. doi: 10.1007/s10096-024-04918-4. Online ahead of print.

ABSTRACT

PURPOSE: We aimed to determine the incidence of TB among immigrants and non-immigrants in Sanliurfa, Türkiye between 2018 and 2022 and to examine the effect of COVID-19 on the incidence, location, and drug resistance patterns of tuberculosis.

METHODS: This study was a retrospective review of patients diagnosed with tuberculosis in Şanlıurfa Tuberculosis Dispensary between January-2018 and May-2022. Patients were assessed in terms of age, sex, site of tuberculosis, and drug resistance profiles before and during the COVID-19 pandemic.

RESULTS: A total of 887 patients with TB were included in the study. The mean age of patients diagnosed with tuberculosis was 40.63 ± 17.50 years. Of the total number of patients diagnosed, 50.7% were women, 85.8% were Turkish citizens, and 91.9% were new cases. Comparing the rate of positive cultures between the pre-COVID-19 and COVID-19 periods revealed a statistically significant rate of positive culture during the COVID-19 period (p < 0.001). In terms of mortality, the mean age of the patients who died was 60.2 ± 18.4 years and that of the survivors was 39.1 ± 16.6 years; these values were statistically significant (p < 0.001). Among the patients who survived, the rate of pulmonary tuberculosis was statistically significantly higher than that of extrapulmonary tuberculosis (p < 0.001).

CONCLUSION: The prevalence of pulmonary TB is high and the proportion of women is increasing. During the COVID-19 period, the number of patients diagnosed with TB decreased, but interestingly, the rate of positive cultures remained high, and the rate of resistance to INH also decreased. The results revealed rates similar to those reported by the World Health Organization.

PMID:39110338 | DOI:10.1007/s10096-024-04918-4

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Optic nerve sheath measurement to monitor disease activity in giant cell arteritis: a pilot study

Clin Rheumatol. 2024 Aug 7. doi: 10.1007/s10067-024-07095-z. Online ahead of print.

ABSTRACT

INTRODUCTION/OBJECTIVES: Optic nerve sheath (ONS) enhancement using magnetic resonance imaging of the orbits was observed in patients with giant cell arteritis (GCA). We previously showed that ONS diameter (ONSD) by bedside ultrasound is increased in patient with active GCA. This study aims to assess whether ONSD decreases with clinical remission in patients with GCA.

METHODS: A prospective cohort study was conducted from June 2022 to January 2023. Patients who had an optic nerve ultrasound at GCA diagnosis as part of a previous crosssectional study were eligible. Optic nerve ultrasound was performed by the same investigator at diagnosis and month 3. ONSD (includes the optic nerve and its sheath) and optic nerve diameter (OND) were measured. Descriptive statistics for baseline characteristics and paired sample t-test were performed to assess the mean difference in OND and ONSD between diagnosis and month 3.

RESULTS: Nine patients with GCA were included. The median age at disease onset was 79 years (interquartile range (IQR) of 79-82 years), and 7 patients were males. All patients were in clinical remission at month 3 on prednisone (median dose of 15 mg/day, IQR of 10-25 mg). The mean ONSD was lower at month 3 (3.76 mm) compared to baseline (5.98 mm), with a paired mean difference of 2.22 mm (95% CI 1.41-3.03 mm, p < 0.001). As anticipated, OND measurements did not vary between diagnosis and month 3.

CONCLUSION: ONSD on ultrasound improves after 3 months of therapy in patients with GCA. A longer prospective study is required to determine if ONSD is useful to assess disease activity in GCA. Key Points • ONS ultrasound can identify patients with active GCA. • The ONSD on ultrasound is dynamic and improved after 3 months of GCA therapy. • ONS ultrasound may be useful to monitor disease activity in GCA.

PMID:39110327 | DOI:10.1007/s10067-024-07095-z