Objective  To analyze the burden of cancer in China from 1990 to 2021.Methods  The 2021 Global Burden of Disease Study database was used to analyze the incidence and mortality of cancer in China from 1990 to 2021, the order of incidence and mortality, the incidence and mortality of some cancers in different age groups, the age-standardized incidence rate (ASIR) and mortality (ASMR) rates

Objective  To investigate the application value of different machine learning models in predicting 5-year survival in patients with rectal squamous cell carcinoma (rSCC).Methods  Data from patients diagnosed with rSCC between 2004 and 2015 were collected using SEER*Stat software in SEER database. Patients were randomly divided into a training set and a validation set in a 7  :  3 ratio.

This article aims to introduce the research methodology for systematic reviews and Meta-analyses of prediction models, detailing its six key steps (research question formulation, search strategy development, literature screening and risk of bias assessment, data extraction and preparation, evidence synthesis and Meta-analysis, and result interpretation and reporting), as well as commonly used tool

Objective  To construct and validate a nomogram model for predicting the survival prognosis of pediatric osteosarcoma patients.Methods  Data were collected from pediatric patients diagnosed with osteosarcoma based on the U.S. SEER database between 2000 and 2021, aged less than 14 years. Patients were randomly divided into a training set and a validation set in a 7 ∶ 3 ratio. Univariate a

Objective  To analyze the risk factors for hypertension and the differences across gender and age groups among residents aged 40 years and older in Zhongshan City, to provide evidence for regional hypertension prevention and control policies.Methods  Data were obtained from the National Stroke High-Risk Population Screening and Intervention Project. A multistage cluster random sampling m