Run Cox proportional hazards regression

Fits a Cox PH model with specified covariates. Returns the model object, hazard ratios with confidence intervals, and concordance index.

Usage

run_cox_regression(surv_data, covariates = c("age_years", "gender"))

Arguments

surv_data

Data frame from [prepare_survival_data()]

covariates

Character vector of covariate column names

Value

List with components: - `model`: coxph object - `hazard_ratios`: data frame with HR, CI, p-values - `concordance`: C-index - `n`: number of patients in model - `n_events`: number of events - `ph_test`: cox.zph result for PH assumption

See also

Other survival: extract_risk_table(), plot_forest(), plot_km(), prepare_survival_data(), run_kaplan_meier(), run_km_by_expression(), run_km_by_markers()