Risk factors and a prediction model for lower limb lymphedema following lymphadenectomy in gynecologic cancer: a hospital-based retrospective cohort study

Table 2 Cumulative incidence by Kaplan-Meier

Years after surgery (y)	Cumulative incidence (Wy)	Std Er	95% CI	Ratio (^a)
1	0.231	0.0078	0.179–0.281	0.484
2	0.302	0.0124	0.243–0.356	0.633
3	0.328	0.0145	0.266–0.384	0.688
5	0.404	0.0233	0.333–0.468	0.847
8	0.426	0.0293	0.343–0.498	0.893
10	0.477	0.0458	0.369–0.567	1.000

Definition of abbreviations: Std Er Standard error, CI Confidence interval
^aCumulative ratio for each year on the basis of the number of LLL patients within 10 years after surgery: Wy/W10

ISSN: 1472-6874