Research Article

[Retracted] The Role of Change Rates of CYFRA21-1 and CEA in Predicting Chemotherapy Efficacy for Non-Small-Cell Lung Cancer

Table 2

The relationship between serum CYFRA21-1 and CEA and chemotherapeutic efficacy.

VariablesPD cases (%)CrudeModel 1Model 2
RR (95% CI)RR (95% CI)RR (95% CI)

CYFRA21-1 change rate
 ≤0724 (5.6)1.0 (1.0, 1.0)Ref.1.0 (1.0, 1.0)Ref.1.0 (1.0, 1.0)Ref.
 >0317 (22.6)5.0 (1.3, 18.4)0.0174.9 (1.3, 19.2)0.0223.0 (0.7, 12.8)0.129
Per 2.6 (1.3, 5.2)0.0053.1 (1.4, 6.8)0.0052.1 (0.9, 4.5)0.068
CEA change rate
 ≤0571 (1.8)1.0 (1.0, 1.0)Ref.1.0 (1.0, 1.0)Ref.1.0 (1.0, 1.0)Ref.
 >04610 (21.7)15.6 (1.9, 126.8)0.01016.5 (1.9, 142.3)0.01113.0 (1.4, 118.0)0.023
Per 5.8 (2.3, 14.8)<0.0016.0 (2.2, 16.8)0.0015.5 (1.7, 17.5)0.004

IQR: interquartile range; cases: the number of participants in processing; RR: relative risk; CI: confidence interval. Model 1: adjusted for age, ECOG PS score, gender, and primary tumor type by location. Model 2: model 1+CYFRA21-1 change rate+CEA change rate.