The construction and validation of a frailty risk prediction model for older adults with lung cancer: A cross-sectional study.

Objective: We aimed to construct and internally validate a frailty risk prediction model in older adults with lung cancer.

Method: In total, 538 patients were recruited in a grade A tertiary cancer hospital in Tianjin, and patients were randomly divided into the training group (n = 377) and the testing group (n = 166) at a ratio of 7:3. The Frailty Phenotype scale was used to identify frailty and logistic regression analysis was used to identify the risk factors and establish a frailty risk prediction model.