Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 1 Multivariable fractional polynomial functions and logarithm hazard ratios for breast cancer-specific survival using SEER variables

From: Development of a prediction model for breast cancer based on the national cancer registry in Taiwan

Variables Function logHR P value
Continuous variables
 Age1 (age/100)−0.5 − 13.05 < 0.001
 Age2 (age/100)−0.5 × log(age/100) 10.42 < 0.001
 Tumor size, mm log(size/10) 0.8375 < 0.001
 Node-positive ratio ((ratio + 0.1)/0.1)0.5 0.7076 < 0.001
Categorical variables
 Chemotherapy
  Without
  With − 0.4792 < 0.001
 Radiotherapy
  Without
  With − 0.3316 < 0.001
 Grade
  1
  2 0.6106 0.003
  3 1.059 < 0.001
 Subtype
  Luminal-like
  HER2 0.3185 < 0.001
  Triple negative 1.426 < 0.001
 Pathological stage
  1
  2 0.6073 < 0.001
  3 1.076 < 0.001
  4 2.044 < 0.001
  1. Derived from model 1