Table 1.
Baseline characteristics before and after PSM, showing statistical comparisons of t-tests or χ2 tests between CDS groups and NCDS groups.
Fig 1.
Distribution map of propensity scores between the CDS group and the NCDS group before and after propensity score matching.
Fig 2.
Survival curves of the two groups after PSM.
Fig 3.
Median survival time of the two groups after PSM.
Fig 4.
Subgroup survival analysis chart for radiotherapy.
Fig 5.
Subgroup survival analysis chart for chemotherapy.