Multiple feature selection based on an optimization strategy for causal analysis of health data.

Purpose: Recent advancements in information technology and wearable devices have revolutionized healthcare through health data analysis. Identifying significant relationships in complex health data enhances healthcare and public health strategies. In health analytics, causal graphs are important for investigating the relationships among health features.

Combination of Muscle Quantity and Quality Is Useful to Assess the Necessity of Surveillance after a 5-Year Cancer-Free Period in Patients Who Undergo Radical Cystectomy: A Multi-Institutional Retrospective Study.

Background: Although continuous surveillance after a 5-year cancer-free period in patients with bladder cancer (BC) who undergo radical cystectomy (RC) is recommended, optimal candidates for continuous surveillance remain unclear. Sarcopenia is associated with unfavorable prognosis in various malignancies. We aimed to investigate the impact of low muscle quantity and quality (defined as severe sarcopenia) on prognosis after a 5-year cancer-free period in patients who underwent RC.

Effectiveness, Policy, and User Acceptance of COVID-19 Contact-Tracing Apps in the Post-COVID-19 Pandemic Era: Experience and Comparative Study.

Background: In the post-COVID-19 pandemic era, many countries have launched apps to trace contacts of COVID-19 infections. Each contact-tracing app (CTA) faces a variety of issues owing to different national policies or technologies for tracing contacts.

Objective: In this study, we aimed to investigate all the CTAs used to trace contacts in various countries worldwide, including the technology used by each CTA, the availability of knowledge about the CTA from official websites, the interoperability of CTAs in various countries, and the infection detection rates and policies of the specific country that launched the CTA, and to summarize the current problems of the apps based on the information collected.

Analysis on the Subdivision of Skilled Mowing Movements on Slopes.

Owing to the aging of the rural population in the hilly and mountainous areas of Japan, mowing on narrow ridges and steep slopes is done manually by the elderly-individuals over 65 years of age. Studies have shown that many accidents that occurred during mowing were caused by workers' unstable posture, especially when mowing on steep surfaces where there is a high risk of falling. It is necessary to analyze the body movements of mowing workers to elucidate the elements related to the risk of falls.

Comparison of nivolumab plus ipilimumab with tyrosine kinase inhibitors as first-line therapies for metastatic renal-cell carcinoma: a multicenter retrospective study.

Background: This study compared real-world outcomes of metastatic renal-cell carcinoma (mRCC) patients treated with tyrosine kinase inhibitors or nivolumab plus ipilimumab.

Methods: Using the International mRCC Database Consortium (IMDC), we retrospectively evaluated intermediate- and poor-risk mRCC patients who were treated with nivolumab plus ipilimumab (Nivo-Ipi), tyrosine kinase inhibitors (TKIs) as the first-line therapy between August 2015 and January 2020. We compared oncological outcomes between the Nivo-Ipi group and TKIs group using multivariate logistic regression analysis with the inverse probability of treatment weighting (IPTW) method.

Training Physical and Geometrical Mid-Points for Multi-person Pose Estimation and Human Detection Under Congestion and Low Resolution.

This paper introduces the design and evaluation of NeoPose which is developed for multi-person pose estimation and human detection. The design of NeoPose is targeting the issue of human detection under congested situation and with low resolution in the image. Under such situations, we compared the performance of different versions of NeoPose as well as other existing algorithms in a human detection task.

Renal cell carcinoma in a lumbar ectopic kidney.

Introduction: Lumbar ectopic kidney is a rare developmental renal anomaly. We report a case of renal cell carcinoma in lumbar ectopic kidney with an abnormality of the main renal artery piercing the renal parenchyma.

Case Presentation: A 70-year-old female was referred to our division with an incidentally diagnosed ectopic kidney.

Analyzing the changes of health condition and social capital of elderly people using wearable devices.

Purpose: Rapid developments in information technology have enabled wearable devices to be applied in the health field. In elderly adults, wearable devices aid in data collection and exerts a positive effect on their social capital. This study evaluated the changes in these two parameters among elderly adults using wearable devices, and analyzed the effect of these devices on their daily lives.