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The utility of personal wearable data in long COVID and personalized patient care. 个人可穿戴数据在长 COVID 和个性化患者护理中的实用性。
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-18 DOI: 10.1038/s41746-024-01341-z
Elizabeth J Enichen, Kimia Heydari, Serena Wang, Grace C Nickel, Joseph C Kvedar
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引用次数: 0
Developing a Canadian artificial intelligence medical curriculum using a Delphi study 利用德尔菲研究开发加拿大人工智能医学课程
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-18 DOI: 10.1038/s41746-024-01307-1
Rohit Singla, Nikola Pupic, Seyed-Aryan Ghaffarizadeh, Caroline Kim, Ricky Hu, Bruce B. Forster, Ilker Hacihaliloglu
The integration of artificial intelligence (AI) education into medical curricula is critical for preparing future healthcare professionals. This research employed the Delphi method to establish an expert-based AI curriculum for Canadian undergraduate medical students. A panel of 18 experts in health and AI across Canada participated in three rounds of surveys to determine essential AI learning competencies. The study identified key curricular components across ethics, law, theory, application, communication, collaboration, and quality improvement. The findings demonstrate substantial support among medical educators and professionals for the inclusion of comprehensive AI education, with 82 out of 107 curricular competencies being deemed essential to address both clinical and educational priorities. It additionally provides suggestions on methods to integrate these competencies within existing dense medical curricula. The endorsed set of objectives aims to enhance AI literacy and application skills among medical students, equipping them to effectively utilize AI technologies in future healthcare settings.
将人工智能(AI)教育纳入医学课程对于培养未来的医疗保健专业人员至关重要。本研究采用德尔菲法,为加拿大医学本科生建立基于专家的人工智能课程。由加拿大卫生和人工智能领域的 18 位专家组成的小组参与了三轮调查,以确定基本的人工智能学习能力。研究确定了课程的主要内容,包括伦理、法律、理论、应用、沟通、协作和质量改进。研究结果表明,医学教育工作者和专业人士非常支持纳入全面的人工智能教育,107 项课程能力中有 82 项被认为是解决临床和教育优先事项的基本能力。此外,研究还就如何将这些能力纳入现有的密集医学课程提出了建议。认可的一系列目标旨在提高医学生的人工智能素养和应用技能,使他们能够在未来的医疗环境中有效利用人工智能技术。
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引用次数: 0
Reinforcement learning model for optimizing dexmedetomidine dosing to prevent delirium in critically ill patients 优化右美托咪定剂量以预防重症患者谵妄的强化学习模型
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-18 DOI: 10.1038/s41746-024-01335-x
Hong Yeul Lee, Soomin Chung, Dongwoo Hyeon, Hyun-Lim Yang, Hyung-Chul Lee, Ho Geol Ryu, Hyeonhoon Lee
Delirium can result in undesirable outcomes including increased length of stays and mortality in patients admitted to the intensive care unit (ICU). Dexmedetomidine has emerged for delirium prevention in these patients; however, optimal dosing is challenging. A reinforcement learning-based Artificial Intelligence model for Delirium prevention (AID) is proposed to optimize dexmedetomidine dosing. The model was developed and internally validated using 2416 patients (2531 ICU admissions) and externally validated on 270 patients (274 ICU admissions). The estimated performance return of the AID policy was higher than that of the clinicians’ policy in both derivation (0.390 95% confidence interval [CI] 0.361 to 0.420 vs. −0.051 95% CI −0.077 to −0.025) and external validation (0.186 95% CI 0.139 to 0.236 vs. −0.436 95% CI −0.474 to −0.402) cohorts. Our finding indicates that AID might support clinicians’ decision-making regarding dexmedetomidine dosing to prevent delirium in ICU patients, but further off-policy evaluation is required.
谵妄会导致不良后果,包括延长重症监护室(ICU)患者的住院时间和死亡率。右美托咪定可用于预防这些患者的谵妄,但最佳剂量的确定却很困难。我们提出了一种基于强化学习的人工智能谵妄预防模型(AID)来优化右美托咪定的剂量。该模型由 2416 名患者(2531 名入住 ICU 的患者)开发并进行了内部验证,由 270 名患者(274 名入住 ICU 的患者)进行了外部验证。在衍生(0.390 95% 置信区间 [CI] 0.361 至 0.420 vs. -0.051 95% CI -0.077 至 -0.025)和外部验证(0.186 95% CI 0.139 至 0.236 vs. -0.436 95% CI -0.474 至 -0.402)队列中,AID 政策的估计绩效回报率均高于临床医生政策。我们的研究结果表明,AID可帮助临床医生做出右美托咪定剂量的决策,以预防ICU患者出现谵妄,但还需要进一步的政策外评估。
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引用次数: 0
Simulating A/B testing versus SMART designs for LLM-driven patient engagement to close preventive care gaps 模拟 A/B 测试与 SMART 设计,以 LLM 驱动的患者参与弥补预防性保健差距
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-18 DOI: 10.1038/s41746-024-01330-2
Sanjay Basu, Dean Schillinger, Sadiq Y. Patel, Joseph Rigdon
Population health initiatives often rely on cold outreach to close gaps in preventive care, such as overdue screenings or immunizations. Tailoring messages to diverse patient populations remains challenging, as traditional A/B testing requires large sample sizes to test only two alternative messages. With increasing availability of large language models (LLMs), programs can utilize tiered testing among both LLM and manual human agents, presenting the dilemma of identifying which patients need different levels of human support to cost-effectively engage large populations. Using microsimulations, we compared both the statistical power and false positive rates of A/B testing and Sequential Multiple Assignment Randomized Trials (SMART) for developing personalized communications across multiple effect sizes and sample sizes. SMART showed better cost-effectiveness and net benefit across all scenarios, but superior power for detecting heterogeneous treatment effects (HTEs) only in later randomization stages, when populations were more homogeneous and subtle differences drove engagement differences.
全民健康计划通常依靠冷启动来弥补预防性保健方面的不足,如逾期筛查或免疫接种。由于传统的 A/B 测试需要大量样本,只能测试两种备选信息,因此针对不同患者群体定制信息仍具有挑战性。随着大型语言模型(LLM)的日益普及,项目可以在 LLM 和人工代理之间进行分层测试,这就带来了一个难题,即如何确定哪些患者需要不同程度的人工支持,从而以具有成本效益的方式吸引大量人群。通过微观模拟,我们比较了 A/B 测试和序列多重赋值随机试验(SMART)的统计能力和假阳性率,以便在多种效应大小和样本大小下开发个性化通信。在所有情况下,SMART 都显示出更好的成本效益和净收益,但只有在随机化的后期阶段,即人群更加均匀、细微差别导致参与度差异的阶段,SMART 才具有更强的异质性治疗效果 (HTE) 检测能力。
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引用次数: 0
Accurately predicting mood episodes in mood disorder patients using wearable sleep and circadian rhythm features 利用可穿戴睡眠和昼夜节律特征准确预测情绪障碍患者的情绪发作
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-18 DOI: 10.1038/s41746-024-01333-z
Dongju Lim, Jaegwon Jeong, Yun Min Song, Chul-Hyun Cho, Ji Won Yeom, Taek Lee, Jung-Been Lee, Heon-Jeong Lee, Jae Kyoung Kim
Wearable devices enable passive collection of sleep, heart rate, and step-count data, offering potential for mood episode prediction in mood disorder patients. However, current models often require various data types, limiting real-world application. Here, we develop models that predict future episodes using only sleep-wake data, easily gathered through smartphones and wearables when trained on an individual’s sleep-wake history and past mood episodes. Using mathematical modeling to longitudinal data from 168 patients (587 days average clinical follow-up, 267 days wearable data), we derived 36 sleep and circadian rhythm features. These features enabled accurate next-day predictions for depressive, manic, and hypomanic episodes (AUCs: 0.80, 0.98, 0.95). Notably, daily circadian phase shifts were the most significant predictors: delays linked to depressive episodes, advances to manic episodes. This prospective observational cohort study (ClinicalTrials.gov: NCT03088657, 2017-3-23) shows sleep-wake data, combined with prior mood episode history, can effectively predict mood episodes, enhancing mood disorder management.
可穿戴设备能够被动收集睡眠、心率和步数数据,为情绪障碍患者的情绪发作预测提供了可能。然而,目前的模型通常需要多种类型的数据,限制了在现实世界中的应用。在此,我们开发了仅使用睡眠-觉醒数据预测未来发作的模型,这些数据可通过智能手机和可穿戴设备轻松收集,并根据个人的睡眠-觉醒历史和过去的情绪发作情况进行训练。通过对 168 名患者的纵向数据(平均临床随访 587 天,可穿戴设备数据 267 天)进行数学建模,我们得出了 36 个睡眠和昼夜节律特征。这些特征能够准确预测第二天的抑郁、躁狂和躁狂发作(AUC:0.80、0.98、0.95)。值得注意的是,每天的昼夜节律相位变化是最重要的预测因素:延迟与抑郁发作有关,提前与躁狂发作有关。这项前瞻性观察性队列研究(ClinicalTrials.gov: NCT03088657, 2017-3-23)表明,睡眠-觉醒数据与之前的情绪发作史相结合,可以有效预测情绪发作,加强情绪障碍管理。
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引用次数: 0
A strategy for cost-effective large language model use at health system-scale 在医疗系统范围内使用具有成本效益的大型语言模型的策略
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-18 DOI: 10.1038/s41746-024-01315-1
Eyal Klang, Donald Apakama, Ethan E. Abbott, Akhil Vaid, Joshua Lampert, Ankit Sakhuja, Robert Freeman, Alexander W. Charney, David Reich, Monica Kraft, Girish N. Nadkarni, Benjamin S. Glicksberg
Large language models (LLMs) can optimize clinical workflows; however, the economic and computational challenges of their utilization at the health system scale are underexplored. We evaluated how concatenating queries with multiple clinical notes and tasks simultaneously affects model performance under increasing computational loads. We assessed ten LLMs of different capacities and sizes utilizing real-world patient data. We conducted >300,000 experiments of various task sizes and configurations, measuring accuracy in question-answering and the ability to properly format outputs. Performance deteriorated as the number of questions and notes increased. High-capacity models, like Llama-3–70b, had low failure rates and high accuracies. GPT-4-turbo-128k was similarly resilient across task burdens, but performance deteriorated after 50 tasks at large prompt sizes. After addressing mitigable failures, these two models can concatenate up to 50 simultaneous tasks effectively, with validation on a public medical question-answering dataset. An economic analysis demonstrated up to a 17-fold cost reduction at 50 tasks using concatenation. These results identify the limits of LLMs for effective utilization and highlight avenues for cost-efficiency at the enterprise scale.
大型语言模型(LLMs)可以优化临床工作流程;然而,在医疗系统范围内使用这些模型所面临的经济和计算挑战还未得到充分探索。我们评估了在计算负荷不断增加的情况下,同时连接多个临床笔记和任务的查询对模型性能的影响。我们利用真实世界的患者数据评估了十种不同容量和规模的 LLM。我们进行了 300,000 次不同任务规模和配置的实验,衡量了问题解答的准确性和正确格式化输出的能力。随着问题和笔记数量的增加,性能也在下降。大容量模型,如 Llama-3-70b ,故障率低,准确率高。GPT-4-turbo-128k 在任务繁重的情况下也具有类似的适应能力,但在 50 个任务之后,提示大小变大,性能也随之下降。在解决了可缓解的故障后,这两个模型可以有效地同时连接多达 50 个任务,并在一个公共医疗问题解答数据集上进行了验证。经济分析表明,在 50 个任务的情况下,使用串联技术最多可将成本降低 17 倍。这些结果确定了有效利用 LLM 的局限性,并强调了在企业规模实现成本效益的途径。
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引用次数: 0
Cost-effectiveness analysis of mHealth applications for depression in Germany using a Markov cohort simulation 利用马尔可夫队列模拟对德国抑郁症移动医疗应用的成本效益进行分析
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-17 DOI: 10.1038/s41746-024-01324-0
Bettina Freitag, Marie Uncovska, Sven Meister, Christian Prinz, Leonard Fehring
Regulated mobile health applications are called digital health applications (“DiGA”) in Germany. To qualify for reimbursement by statutory health insurance companies, DiGA have to prove positive care effects in scientific studies. Since the empirical exploration of DiGA cost-effectiveness remains largely uncharted, this study pioneers the methodology of cohort-based state-transition Markov models to evaluate DiGA for depression. As health states, we define mild, moderate, severe depression, remission and death. Comparing a future scenario where 50% of patients receive supplementary DiGA access with the current standard of care reveals a gain of 0.02 quality-adjusted life years (QALYs) per patient, which comes at additional direct costs of ~1536 EUR per patient over a five-year timeframe. Influencing factors determining DiGA cost-effectiveness are the DiGA cost structure and individual DiGA effectiveness. Under Germany’s existing cost structure, DiGA for depression are yet to demonstrate the ability to generate overall savings in healthcare expenditures.
在德国,受监管的移动医疗应用程序被称为数字医疗应用程序("DiGA")。要获得法定医疗保险公司的报销资格,DiGA 必须在科学研究中证明其具有积极的医疗效果。由于对 DiGA 成本效益的实证探索在很大程度上仍是未知数,本研究开创性地采用了基于队列的状态转换马尔可夫模型的方法来评估 DiGA 对抑郁症的治疗效果。我们将轻度、中度、重度抑郁、缓解和死亡定义为健康状态。将 50% 的患者接受 DiGA 辅助治疗的未来情景与当前的标准治疗进行比较后发现,每位患者可获得 0.02 个质量调整生命年(QALYs)的收益,而在五年时间内,每位患者的额外直接成本约为 1536 欧元。决定 DiGA 成本效益的影响因素是 DiGA 成本结构和 DiGA 的个体有效性。在德国现有的成本结构下,治疗抑郁症的 DiGA 还没有证明有能力节省总体医疗开支。
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引用次数: 0
Multisource representation learning for pediatric knowledge extraction from electronic health records 从电子健康记录中提取儿科知识的多源表征学习
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-13 DOI: 10.1038/s41746-024-01320-4
Mengyan Li, Xiaoou Li, Kevin Pan, Alon Geva, Doris Yang, Sara Morini Sweet, Clara-Lea Bonzel, Vidul Ayakulangara Panickan, Xin Xiong, Kenneth Mandl, Tianxi Cai
Electronic Health Record (EHR) systems are particularly valuable in pediatrics due to high barriers in clinical studies, but pediatric EHR data often suffer from low content density. Existing EHR code embeddings tailored for the general patient population fail to address the unique needs of pediatric patients. To bridge this gap, we introduce a transfer learning approach, MUltisource Graph Synthesis (MUGS), aimed at accurate knowledge extraction and relation detection in pediatric contexts. MUGS integrates graphical data from both pediatric and general EHR systems, along with hierarchical medical ontologies, to create embeddings that adaptively capture both the homogeneity and heterogeneity between hospital systems. These embeddings enable refined EHR feature engineering and nuanced patient profiling, proving particularly effective in identifying pediatric patients similar to specific profiles, with a focus on pulmonary hypertension (PH). MUGS embeddings, resistant to negative transfer, outperform other benchmark methods in multiple applications, advancing evidence-based pediatric research.
由于临床研究的高门槛,电子健康记录(EHR)系统对儿科尤为重要,但儿科 EHR 数据的内容密度往往较低。现有的电子病历代码嵌入是为普通患者量身定制的,无法满足儿科患者的独特需求。为了弥补这一缺陷,我们引入了一种迁移学习方法--MUltisource Graph Synthesis(MUGS),旨在儿科环境中进行准确的知识提取和关系检测。MUGS 整合了来自儿科和普通电子病历系统的图形数据以及分层医疗本体,创建了能自适应捕捉医院系统间同质性和异质性的嵌入。这些嵌入技术可实现完善的电子病历特征工程和细致入微的病人特征描述,在识别与特定特征相似的儿科病人(重点是肺动脉高压(PH))方面尤其有效。MUGS 嵌入抗负转移,在多种应用中优于其他基准方法,推动了循证儿科研究的发展。
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引用次数: 0
Simulated misuse of large language models and clinical credit systems 模拟滥用大型语言模型和临床信用系统的情况
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-11 DOI: 10.1038/s41746-024-01306-2
James T. Anibal, Hannah B. Huth, Jasmine Gunkel, Susan K. Gregurick, Bradford J. Wood
In the future, large language models (LLMs) may enhance the delivery of healthcare, but there are risks of misuse. These methods may be trained to allocate resources via unjust criteria involving multimodal data - financial transactions, internet activity, social behaviors, and healthcare information. This study shows that LLMs may be biased in favor of collective/systemic benefit over the protection of individual rights and could facilitate AI-driven social credit systems.
未来,大型语言模型(LLMs)可能会提高医疗服务的质量,但也存在滥用的风险。这些方法可能会被训练成通过涉及多模态数据(金融交易、互联网活动、社会行为和医疗保健信息)的不公正标准来分配资源。本研究表明,LLM 可能会偏向于集体/系统利益,而不是保护个人权利,并可能促进人工智能驱动的社会信用体系。
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引用次数: 0
Ehealth interactive intervention in promoting safer sex among men who have sex with men 促进男男性行为者安全性行为的电子健康互动干预措施
IF 12.4 1区 医学 Q1 HEALTH CARE SCIENCES & SERVICES Pub Date : 2024-11-09 DOI: 10.1038/s41746-024-01313-3
Edmond Pui Hang Choi, Chanchan Wu, Kitty Wai Ying Choi, Pui Hing Chau, Eric Yuk Fai Wan, William Chi Wai Wong, Janet Yuen Ha Wong, Daniel Yee Tak Fong, Eric Pui Fung Chow
Men who have sex with men (MSM) who use dating applications (apps) have higher rates of engaging in condomless anal sex than those who do not. Therefore, we conducted a two-arm randomized controlled trial to evaluate the effectiveness of an interactive web-based intervention in promoting safer sex among this population. The intervention was guided by the Theory of Planned Behavior and co-designed by researchers, healthcare providers, and MSM participants. The primary outcome was the frequency of condomless anal sex in past three months. Secondary outcomes included five other behavioral outcomes and two psychological outcomes. This trial was registered on ISRCTN (ISRCTN16681863) on 2020/04/28. A total of 480 MSM were enrolled and randomly assigned to the intervention or control group. Our findings indicate that the intervention significantly reduced condomless anal sex behaviors by enhancing self-efficacy and attitudes toward condom use among MSM dating app users, with the effects sustained at both three and six months.
使用约会应用程序(App)的男男性行为者(MSM)发生无安全套肛交的比例高于不使用的人群。因此,我们开展了一项双臂随机对照试验,以评估基于网络的互动干预措施在促进该人群安全性行为方面的效果。该干预以计划行为理论为指导,由研究人员、医疗保健提供者和 MSM 参与者共同设计。主要结果是过去三个月中无套肛交的频率。次要结果包括其他五项行为结果和两项心理结果。该试验于 2020/04/28 在 ISRCTN 上注册(ISRCTN16681863)。共有 480 名男男性行为者参加了该试验,并被随机分配到干预组或对照组。我们的研究结果表明,干预措施通过增强 MSM 交友应用程序用户的自我效能感和对安全套使用的态度,大大减少了无套肛交行为,其效果在三个月和六个月后仍能持续。
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引用次数: 0
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NPJ Digital Medicine
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