Research Article

Survival after Locoregional Treatments for Hepatocellular Carcinoma: A Cohort Study in Real-World Patients

Table 3

Effectiveness of locoregional treatment on overall survival in Cox proportional hazard model adjusted by propensity score. Sensitivity analysis.

ModelHR (95% CI) 𝑃

RFA versus PEI ( 𝑛 = 4 7 + 2 5 3 )
Adjustment by propensity score ( 𝑛 = 4 7 + 2 3 9 )
  Linear1.11 (0.79–1.57)0.53
  Cubic spline1.09 (0.77–1.54)0.63
  Stratified (quintiles)1.11 (0.78–1.58)0.56
  Inverse probability weighting 1.13 (0.82–1.57) 0.46
Adjustment by prognostic covariates ( 𝑛 = 4 7 + 2 5 3 )1.21 (0.87–1.71)0.25

Surgery versus RFA/PEI ( 𝑛 = 3 4 + 3 0 3 )
Adjustment by propensity score ( 𝑛 = 3 4 + 2 5 5 )
  Linear0.95 (0.64–1.41)0.79
  Cubic spline0.95 (0.64–1.41)0.81
  Stratified (quintiles)0.95 (0.61–1.48)0.82
  Inverse probability weighting0.80 (0.52–1.24)0.32
Adjustment by prognostic covariates ( 𝑛 = 3 4 + 3 0 3 )0.96 (0.64–1.42)0.82

TAE/TACE versus RFA/PEI ( 𝑛 = 8 0 + 3 0 3 )
Adjustment by propensity score ( 𝑛 = 8 0 + 2 8 7 )
  Linear0.88 (0.66–1.17)0.38
  Cubic spline0.89 (0.67–1.18)0.41
  Stratified (quintiles)0.86 (0.65–1.15)0.32
  Inverse probability weighting0.98 (0.73–1.32)0.90
Adjustment by prognostic covariates ( 𝑛 = 8 0 + 3 0 3 )0.83 (0.63–1.10)0.20

PEI: percutaneous ethanol injection, RFA: radiofrequency ablation, TACE/TAE: transarterial embolization with (TACE) or without (TAE) chemotherapy.