Tag: nevin manimala

JMIR Infodemiology. 2025 Jan 30;5:e58539. doi: 10.2196/58539.

ABSTRACT

BACKGROUND: The novel coronavirus disease (COVID-19) sparked significant health concerns worldwide, prompting policy makers and health care experts to implement nonpharmaceutical public health interventions, such as stay-at-home orders and mask mandates, to slow the spread of the virus. While these interventions proved essential in controlling transmission, they also caused substantial economic and societal costs and should therefore be used strategically, particularly when disease activity is on the rise. In this context, geosocial media posts (posts with an explicit georeference) have been shown to provide a promising tool for anticipating moments of potential health care crises. However, previous studies on the early warning capabilities of geosocial media data have largely been constrained by coarse spatial resolutions or short temporal scopes, with limited understanding of how local political beliefs may influence these capabilities.

OBJECTIVE: This study aimed to assess how the epidemiological early warning capabilities of geosocial media posts for COVID-19 vary over time and across US counties with differing political beliefs.

METHODS: We classified US counties into 3 political clusters, democrat, republican, and swing counties, based on voting data from the last 6 federal election cycles. In these clusters, we analyzed the early warning capabilities of geosocial media posts across 6 consecutive COVID-19 waves (February 2020-April 2022). We specifically examined the temporal lag between geosocial media signals and surges in COVID-19 cases, measuring both the number of days by which the geosocial media signals preceded the surges in COVID-19 cases (temporal lag) and the correlation between their respective time series.

RESULTS: The early warning capabilities of geosocial media data differed across political clusters and COVID-19 waves. On average, geosocial media posts preceded COVID-19 cases by 21 days in republican counties compared with 14.6 days in democrat counties and 24.2 days in swing counties. In general, geosocial media posts were preceding COVID-19 cases in 5 out of 6 waves across all political clusters. However, we observed a decrease over time in the number of days that posts preceded COVID-19 cases, particularly in democrat and republican counties. Furthermore, a decline in signal strength and the impact of trending topics presented challenges for the reliability of the early warning signals.

CONCLUSIONS: This study provides valuable insights into the strengths and limitations of geosocial media data as an epidemiological early warning tool, particularly highlighting how they can change across county-level political clusters. Thus, these findings indicate that future geosocial media based epidemiological early warning systems might benefit from accounting for political beliefs. In addition, the impact of declining geosocial media signal strength over time and the role of trending topics for signal reliability in early warning systems need to be assessed in future research.

PMID:39883923 | DOI:10.2196/58539

JMIR Res Protoc. 2025 Jan 30;14:e58031. doi: 10.2196/58031.

ABSTRACT

BACKGROUND: Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition emerging in early childhood, characterized by core features such as sociocommunicative deficits and repetitive, rigid behaviors, interests, and activities. In addition to these, disruptive behaviors (DB), including aggression, self-injury, and severe tantrums, are frequently observed in pediatric patients with ASD. The atypical antipsychotics risperidone and aripiprazole, currently the only Food and Drug Administration-approved treatments for severe DB in patients with ASD, often encounter therapeutic failure or intolerance. Given this, exploring pharmacological alternatives for more effective management of DB associated with ASD is essential. Clozapine, noted for its unique antiaggressive effects in schizophrenia and in various treatment-resistant neuropsychiatric disorders, independent from its antipsychotic efficacy, remains underexplored in youths with ASD facing severe and persistent DB.

OBJECTIVE: This study aimed to evaluate the efficacy, tolerability, and safety of clozapine for treatment-resistant DB in youths with ASD.

METHODS: This is a prospective, single-center, noncontrolled, open-label trial. After a cross-titration phase, 31 patients with ASD aged 10-17 years and with treatment-resistant DB received a flexible dosage regimen of clozapine (up to 600 mg/day) for 12 weeks. Standardized instruments were applied before, during, and after the treatment, and rigorous clinical monitoring was performed weekly. The primary outcome was assessed using the Irritability Subscale of the Aberrant Behavior Checklist. Other efficacy measures include the Clinical Global Impression Severity and Improvement, the Swanson, Nolan, and Pelham questionnaire-IV, the Childhood Autism Rating Scale, and the Vineland Adaptive Behavior Scale. Safety and tolerability measures comprised adverse events, vital signs, electrocardiography, laboratory tests, physical measurements, and extrapyramidal symptoms with the Simpsons-Angus Scale. Statistical analysis will include chi-square tests with Monte Carlo simulation for categorical variables, paired t tests or Wilcoxon tests for continuous variables, and multivariate linear mixed models to evaluate the primary outcome, adjusting for confounders.

RESULTS: Recruitment commenced in February 2023. Data collection was concluded by April 2024, with analysis ongoing. This article presents the protocol of the initially planned study to provide a detailed methodological description. The results of this trial will be published in a future paper.

CONCLUSIONS: The urgent need for effective pharmacological therapies in mitigating treatment-resistant DB in pediatric patients with ASD underscores the importance of this research. Our study represents the first open-label trial to explore the anti-aggressive effects of clozapine in this specific demographic, marking a pioneering step in clinical investigation. Adopting a pragmatic approach, this trial protocol aims to mirror real-world clinical settings, thereby enhancing the applicability and relevance of our findings. The preliminary nature of future results from this research has the potential to pave the way for more robust studies and emphasize the need for continued innovation in ASD treatment.

TRIAL REGISTRATION: Brazilian Clinical Trials Registry RBR-54j3726; https://ensaiosclinicos.gov.br/rg/RBR-54j3726.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/58031.

PMID:39883920 | DOI:10.2196/58031

JMIR Aging. 2025 Jan 30;8:e66104. doi: 10.2196/66104.

ABSTRACT

BACKGROUND: The utility of aging metrics that incorporate cognitive and physical function is not fully understood.

OBJECTIVE: We aim to compare the predictive capacities of 3 distinct aging metrics-motoric cognitive risk syndrome (MCR), physio-cognitive decline syndrome (PCDS), and cognitive frailty (CF)-for incident dementia and all-cause mortality among community-dwelling older adults.

METHODS: We used longitudinal data from waves 10-15 of the Health and Retirement Study. Cox proportional hazards regression analysis was employed to evaluate the effects of MCR, PCDS, and CF on incident all-cause dementia and mortality, controlling for socioeconomic and lifestyle factors, as well as medical comorbidities. Discrimination analysis was conducted to assess and compare the predictive accuracy of the 3 aging metrics.

RESULTS: A total of 2367 older individuals aged 65 years and older, with no baseline prevalence of dementia or disability, were ultimately included. The prevalence rates of MCR, PCDS, and CF were 5.4%, 6.3%, and 1.3%, respectively. Over a decade-long follow-up period, 341 cases of dementia and 573 deaths were recorded. All 3 metrics were predictive of incident all-cause dementia and mortality when adjusting for multiple confounders, with variations in the strength of their associations (incident dementia: MCR odds ratio [OR] 1.90, 95% CI 1.30-2.78; CF 5.06, 95% CI 2.87-8.92; PCDS 3.35, 95% CI 2.44-4.58; mortality: MCR 1.60, 95% CI 1.17-2.19; CF 3.26, 95% CI 1.99-5.33; and PCDS 1.58, 95% CI 1.17-2.13). The C-index indicated that PCDS and MCR had the highest discriminatory accuracy for all-cause dementia and mortality, respectively.

CONCLUSIONS: Despite the inherent differences among the aging metrics that integrate cognitive and physical functions, they consistently identified risks of dementia and mortality. This underscores the importance of implementing targeted preventive strategies and intervention programs based on these metrics to enhance the overall quality of life and reduce premature deaths in aging populations.

PMID:39883919 | DOI:10.2196/66104

J Med Internet Res. 2025 Jan 30;27:e66896. doi: 10.2196/66896.

ABSTRACT

BACKGROUND: Large language model (LLM) artificial intelligence chatbots using generative language can offer smoking cessation information and advice. However, little is known about the reliability of the information provided to users.

OBJECTIVE: This study aims to examine whether 3 ChatGPT chatbots-the World Health Organization’s Sarah, BeFreeGPT, and BasicGPT-provide reliable information on how to quit smoking.

METHODS: A list of quit smoking queries was generated from frequent quit smoking searches on Google related to “how to quit smoking” (n=12). Each query was given to each chatbot, and responses were analyzed for their adherence to an index developed from the US Preventive Services Task Force public health guidelines for quitting smoking and counseling principles. Responses were independently coded by 2 reviewers, and differences were resolved by a third coder.

RESULTS: Across chatbots and queries, on average, chatbot responses were rated as being adherent to 57.1% of the items on the adherence index. Sarah’s adherence (72.2%) was significantly higher than BeFreeGPT (50%) and BasicGPT (47.8%; P<.001). The majority of chatbot responses had clear language (97.3%) and included a recommendation to seek out professional counseling (80.3%). About half of the responses included the recommendation to consider using nicotine replacement therapy (52.7%), the recommendation to seek out social support from friends and family (55.6%), and information on how to deal with cravings when quitting smoking (44.4%). The least common was information about considering the use of non-nicotine replacement therapy prescription drugs (14.1%). Finally, some types of misinformation were present in 22% of responses. Specific queries that were most challenging for the chatbots included queries on “how to quit smoking cold turkey,” “…with vapes,” “…with gummies,” “…with a necklace,” and “…with hypnosis.” All chatbots showed resilience to adversarial attacks that were intended to derail the conversation.

CONCLUSIONS: LLM chatbots varied in their adherence to quit-smoking guidelines and counseling principles. While chatbots reliably provided some types of information, they omitted other types, as well as occasionally provided misinformation, especially for queries about less evidence-based methods of quitting. LLM chatbot instructions can be revised to compensate for these weaknesses.

PMID:39883917 | DOI:10.2196/66896

JMIR Med Educ. 2025 Jan 30;11:e63065. doi: 10.2196/63065.

ABSTRACT

BACKGROUND: There has been a rise in the popularity of ChatGPT and other chat-based artificial intelligence (AI) apps in medical education. Despite data being available from other parts of the world, there is a significant lack of information on this topic in medical education and research, particularly in Saudi Arabia.

OBJECTIVE: The primary objective of the study was to examine the familiarity, usage patterns, and attitudes of Alfaisal University medical students toward ChatGPT and other chat-based AI apps in medical education.

METHODS: This was a cross-sectional study conducted from October 8, 2023, through November 22, 2023. A questionnaire was distributed through social media channels to medical students at Alfaisal University who were 18 years or older. Current Alfaisal University medical students in years 1 through 6, of both genders, were exclusively targeted by the questionnaire. The study was approved by Alfaisal University Institutional Review Board. A χ2 test was conducted to assess the relationships between gender, year of study, familiarity, and reasons for usage.

RESULTS: A total of 293 responses were received, of which 95 (32.4%) were from men and 198 (67.6%) were from women. There were 236 (80.5%) responses from preclinical students and 57 (19.5%) from clinical students, respectively. Overall, males (n=93, 97.9%) showed more familiarity with ChatGPT compared to females (n=180, 90.09%; P=.03). Additionally, males also used Google Bard and Microsoft Bing ChatGPT more than females (P<.001). Clinical-year students used ChatGPT significantly more for general writing purposes compared to preclinical students (P=.005). Additionally, 136 (46.4%) students believed that using ChatGPT and other chat-based AI apps for coursework was ethical, 86 (29.4%) were neutral, and 71 (24.2%) considered it unethical (all Ps>.05).

CONCLUSIONS: Familiarity with and usage of ChatGPT and other chat-based AI apps were common among the students of Alfaisal University. The usage patterns of these apps differ between males and females and between preclinical and clinical-year students.

PMID:39883912 | DOI:10.2196/63065

JCO Glob Oncol. 2025 Jan;11:e2400339. doi: 10.1200/GO-24-00339. Epub 2025 Jan 30.

ABSTRACT

The evolution of radiation therapy in Uganda has been a journey marked by significant milestones and persistent challenges. Since the inception of radiotherapy services in 1988-1989, there has been a concerted effort to enhance cancer treatment services. The early years were characterized by foundational developments, such as the installation of the first teletherapy units, low-dose-rate brachytherapy units, and conventional simulators, and the recognition of radiation oncologists and medical physicist professionals laid the groundwork for radiotherapy treatment modalities. With more support from the International Atomic Energy Agency, the acquisition of dosimetry equipment, treatment planning systems, and additional professional training signaled a new era in the fight against cancer. As we entered the second decade of the millennium, the Uganda Cancer Institute (UCI) witnessed a progression in sophisticated radiotherapy services, including high-dose-rate brachytherapy, initiation of intensity modulated radiation therapy (IMRT)/volumetric modulated arc therapy (VMAT), and use of artificial intelligence. These advancements improved the efficiency/precision of treatments and the time patients spent undergoing therapy. Around the second decade of radiotherapy services, about 600 new patients with cancer were annually treated compared with about 2,600 in 2023. Currently, an average of 1,440 brachytherapy insertions are done annually compared with 300 insertions for the first 20 years. Despite the technological strides, the UCI faced numerous obstacles, including limited equipment, knowledge gaps in appropriate tumor/organs at risk segmentations, treatment planning, and protocols. However, international support and collaboration efforts have led to significant improvement in the precision and effectiveness of treatments. Currently, about 51% of all patients are treated with image-guided techniques-IMRT/VMAT (42%) and three-dimensional conformal radiation treatment (10%). The Government has commenced the decentralization of radiotherapy services to other regions. This review can be a learning lesson for the more than 25 countries in Africa and other low-middle-income countries globally that do not have access to radiotherapy and/or are in the process of starting such facilities.

PMID:39883898 | DOI:10.1200/GO-24-00339

JCO Glob Oncol. 2025 Jan;11:e2400464. doi: 10.1200/GO-24-00464. Epub 2025 Jan 30.

ABSTRACT

PURPOSE: Prior noncontemporary studies showed that oral cyclophosphamide is an active treatment of metastatic castration-resistant prostate cancer (mCRPC). However, cyclophosphamide is currently underutilized in routine clinical practice given the lack of survival benefit and the emergence of more effective treatments.

METHODS: We retrospectively reviewed our institutional database to identify patients with mCRPC treated with cyclophosphamide. Prostate-specific antigen decrease ≥50% from baseline (PSA50) response was determined as the proportion of patients achieving a prostate-specific antigen (PSA) decline ≥50% from baseline. Radiographic responses and progression were evaluated by Prostate Cancer Working Group 3. Survival estimates used the Kaplan-Meier method, and correlations were made with Chi-square test for categorical variables.

RESULTS: From January 2011 to January 2023, 341 patients with mCRPC received oral cyclophosphamide at a tertiary cancer center in São Paulo, Brazil. The most common regimen (95%) was 100 mg once daily 21 days on, 7 days off. At prostate cancer diagnosis, the median age was 64.4 years (IQR, 59.4-70.8), 61.9% had metastatic de novo disease, and 55.5% had Gleason ≥8. The median number of previous treatment lines was three (IQR, 2-4). Any PSA decline was observed in 33.4%, and 13.2% had a PSA50 response. Median response duration was 2.1 months (IQR, 1.4-3.8). Ten patients (3%) were treated for ≥1 year. PSA50 response was associated with no prior docetaxel use and Eastern Cooperative Oncology Group performance status 0 or 1.

CONCLUSION: Oral cyclophosphamide is a feasible treatment option for patients with mCRPC, particularly in a scenario of limited health care resources.

PMID:39883895 | DOI:10.1200/GO-24-00464

JCO Glob Oncol. 2025 Jan;11:e2400320. doi: 10.1200/GO-24-00320. Epub 2025 Jan 30.

ABSTRACT

PURPOSE: The academic field of global pediatric oncology is expanding as cancer becomes increasingly recognized as a global health priority for children and adolescents. Here, we aimed to explore the representation of authors, the geographic distribution of research, and the research approaches being used in global pediatric oncology.

METHODS: Articles published in JCO Global Oncology (JCO GO) and Pediatric Blood and Cancer on the topic of global pediatric oncology were analyzed. For each article, data were collected on the study design, the research location, and the authorship demographics. Descriptive frequencies were reported for all items.

RESULTS: Overall, 296 studies met the inclusion criteria to be considered relevant for global pediatric oncology. Of these, 259 (87.5%) were research articles. Of the research articles, 228 (88.0%) were observational and 117 (51.3%) were retrospective cohort analyses. Thirty-eight studies (12.8%) had a global focus or were unrelated to a geographic context, 54 (18.2%) were regional, and 204 (68.9%) were specific to a single country. Females represented 163 (55.8%) of first authors, 138 (46.6%) of senior authors, and 159 (53.7%) of corresponding authors. Furthermore, 121 (41.4%) first authors, 163 (55.1%) last authors, and 142 (48.0%) senior authors were from high-income countries (HICs). The United States (n = 81) and India (n = 40) had the most corresponding authors. Thirty-six (17.6%) articles had research conducted in low- and middle-income countries (LMICs), and the first, senior, and corresponding authors were from HICs.

CONCLUSION: Our analysis shows that researchers from LMICs are under-represented as authors of global pediatric oncology publications. Further studies are needed to evaluate the factors that contribute to inequalities in global pediatric oncology research.

PMID:39883894 | DOI:10.1200/GO-24-00320

J Clin Oncol. 2025 Jan 30:JCO2401360. doi: 10.1200/JCO-24-01360. Online ahead of print.

ABSTRACT

PURPOSE: To assess trial-level surrogacy value for overall survival (OS) of the pathologic complete response (pCR) and invasive disease-free survival (iDFS) in randomized clinical trials (RCTs) for early breast cancer (BC).

METHODS: Individual patient data of neoadjuvant RCTs with available data on pCR, iDFS, and OS were included in the analysis. We used the coefficient of determination R² from weighted linear regression models to quantify the association between treatment effects on OS and on the surrogate end points.

RESULTS: Eleven RCTs, for a total of 15 treatment comparisons and 12,247 patients, were included in the analysis. There was a weak association between hazard ratios (HRs) for OS and odds ratio of pCR overall (R², 0.07; 95% CI, 0.00 to 0.48), as well as in all the subgroups explored. Overall, the R² for the association between HR OS and HR iDFS was 0.46 (95% CI, 0.08 to 0.71), which is just below the cutoff of 0.5 for moderate surrogacy. In the majority of subgroups explored, the R² ranged from 0.5 to <0.7, while in hormone receptor-/human epidermal growth factor receptor 2- subtype, histologic grade 1-2 tumors, and lobular tumors, surrogacy was strong (ie, R² ≥0.7). The surrogacy value of iDFS for OS was affected by follow-up (FUP) length: R² substantially increased up to 36 months of FUP, with little further improvement after 48 months of FUP.

CONCLUSION: iDFS with sufficient FUP is an acceptable surrogate end point to confidently anticipate final OS results of neoadjuvant RCTs for early BC. This recommendation holds true across many subgroups, with the notable exception of HR+ disease. There is definite need to reassess whether OS is the optimal end point for treatment efficacy measurement in HR+ early BC.

PMID:39883887 | DOI:10.1200/JCO-24-01360

Am J Hosp Palliat Care. 2025 Jan 30:10499091251317174. doi: 10.1177/10499091251317174. Online ahead of print.

ABSTRACT

PURPOSE: To determine the feasibility of mapping interdisciplinary role ownership over actionable practices identified from qualitative comments in the Veterans Affairs Bereaved Family Survey (BFS).

METHODS: We polled two providers from each of 14 disciplines as to whether an actionable practice that improved end-of-life care quality sits within their scope of practice. We grouped practices by having the greatest, middle, and fewest number of disciplines that claimed role ownership and then characterized what roles were shared.

MAJOR FINDINGS: Medicine, nursing, social work, and occupational therapy claimed role ownership of the greatest number of practices among the 14 disciplines. Chaplaincy and the allied health disciplines had a comparatively more limited range of role ownership of practices. Practices with the greatest number of professionals claiming role ownership were general professional behaviors that do not require specialized training (e.g., being easy to talk to). Practices with the middle number of role ownership required clinical specialization (e.g., offering non-pharmacological interventions to reduce agitation). Practices with the fewest number of disciplines required a narrower skill set (e.g., signing the death certificate in a timely manner) or administrative authority to perform (e.g., providing adequate nursing staff).

CONCLUSIONS: This project demonstrated the feasibility of mapping BFS actionable practices across disciplines. A larger sample and rigorous statistical analysis are required for application at a health care system level. Understanding role ownership can then guide efforts relating to role ownership and role sharing for end-of-life quality improvement activities.

PMID:39883885 | DOI:10.1177/10499091251317174