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Table 5 Linear regression model and generalized linear model for incidence-based medical cost

From: Incidence, cost and gender differences of oropharyngeal and noncervical anogenital cancers in South Korea

Model Variable Univariate Multivariate
Anal Oropharynx a Anal Oropharynx a
β p* β p* β p* β p*
Linear Regression Model Sex (ref = female) −0.104 0.024 0.483 <.001 −0.150 0.004 0.422 <.001
Age (ref = ≤65) −0.180 <.001 −0.255 <.001 −0.136 0.001 −0.185 <.001
Year 0.102 <.001 0.053 0.002 0.101 <.001 0.046 0.003
Surgery (ref = inexperience) 1.040 <.001 1.001 <.001 1.037 <.001 0.956 <.001
Health plan type (ref = healthcare insurance) 0.113 0.174 −0.118 0.131 0.115 0.131 −0.121 0.091
CCI −0.065 0.001 −0.079 <.001 0.003 0.987 −0.045 0.002
AIC      95,597 12,2571
Generalized Linear Model Sex (ref = female) −0.040 0.286 0.270 <.001 −0.088 0.012 0.249 <.001
Age (ref = ≤65) −0.248 <.001 −0.145 <.001 −0.120 <.001 −0.118 <.001
Year 0.129 <.001 0.043 0.001 0.130 <.001 0.038 0.002
Surgery (ref = inexperience) 0.773 <.001 0.674 <.001 0.759 <.001 0.657 <.001
Health plan type (ref = healthcare insurance) 0.111 0.098 −0.003 0.965 0.129 0.040 0.013 0.823
CCI −0.050 0.001 −0.052 <.001 −0.009 0.534 −0.034 0.003
AIC      103,891 132,144
  1. AIC Akaike Information Criterion, CCI, Charlson Comorbidity Index
  2. * p < 0.05
  3. a Oropharyngeal cancer, including the base of tongue and tonsil