Related Experiment Video
Updated: Jan 29, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
Competing risk analysis of primary tracheal carcinoma based on SEER database
HongXiang Gao1, Xuan He1, JianFei Du1
1Department of Oncology, Chang'An Hospital, Xi'an, Shaanxi, China, 38603287@qq.com.
Purpose:
To analyze the prognostic factors of primary tracheal carcinoma.
Patients And Methods:
All patients of primary tracheal carcinoma were extracted from the Surveillance, Epidemiology, and End Results database during 1973-2015. The potential prognostic factors were analyzed by using the competing risk analysis of R statistical software.
Results:
A total of 485 eligible patients were enrolled. The univariate analysis indicated that age, sex, diagnostic confirmation, extension, lymph node, metastasis, multiple primary tumors, primary site surgery, and lymph node dissection were statistically significant for the patients' death due to tracheal tumor. The multivariate analysis indicated that age (P=0.0000, CI: 1.0255-1.0630), lymph node (P=0.0000, CI: 1.6031-3.4890), metastasis (P=0.0100, CI: 1.1342-2.5790), multiple primary tumors (P=0.0000, CI: 0.0276-0.1090), and primary site surgery (P=0.0001, CI: 0.3565-0.7110) were independent prognostic factors affecting survival, and there were significant differences in the stratification of each prognostic factors.
Conclusion:
Age, lymph node, metastasis, multiple primary tumors, and primary site surgery were independent prognostic factors of primary tracheal carcinoma.
Related Concept Videos
Relative Risk
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
Primary Active Transport
Classification of Titrimetric Analysis Based on Reaction Types
Titrations between an acid and a base lead to neutralization reactions that form...
Pedigree Analysis
Primary and Secondary Growth in Roots and Shoots

