Retrospective Cohort Study
Copyright ©The Author(s) 2023.
World J Gastrointest Oncol. May 15, 2023; 15(5): 828-842
Published online May 15, 2023. doi: 10.4251/wjgo.v15.i5.828
Table 5 The risk of liver cancer by stratified follow-up years
Follow-up time
Non-LFC users
LFC users
cHR
95%CI
aHR1
95%CI
n
PY
IR
n
PY
IR
2-3 yr13679329414.6513329281914.350.98(0.91, 1.06)1.01(0.93, 1.09)
4-6 yr15546386824.3314016406321.870.9(0.84, 0.97)b0.92(0.86, 0.99)a
> 6 yr9272944231.499673524127.440.77(0.7, 0.84)c0.75(0.68, 0.82)c