Fig. 3

Long-term survival of elderly M1b colon cancer patients grouped by marital status stratified by insurance status. A, B The stratified analysis survival curves showed that the Married group who are uninsured had comparable OS A and CSS B with the Unmarried of group; C, D The stratified analysis survival curves showed that the Married group who are insured had better OS C and CSS D with the Unmarried group. E, F The stratified analysis survival curves showed that the Married group who recevied medicaid had comparable OS E and CSS F with the Unmarried group. OS, overall survival; CSS, cancer-specific survival