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Table 1 Characteristics of patients with OC/OP/SG cancer and matched comparison group

From: The cost burden of oral, oral pharyngeal, and salivary gland cancers in three groups: commercial insurance, medicare, and medicaid

  Commercial Database Medicare Supplemental Database Medicaid Database
OC/OP/SG Cancer Matched Comparison group P-ValueA OC/OP/SG Cancer Matched Comparison group P-ValueA OC/OP/SG Cancer Matched Comparison group P-ValueA
Number of patients 3,918 3,918   2,303 2,303   585 585  
Age in Years 53.42 52.77 <0.001 74.51 74.34 0.392 53.36 52.52 0.148
Age Group          
   18-34 3.2 3.6 0.643 0.0 0.0 0.673 3.8 4.8 0.776
   35-44 8.9 8.8   0.0 0.0   9.9 8.7  
   45-54 34.9 34.1   0.2 0.4   36.6 37.9  
   55-64 53.0 53.5   1.2 1.4   43.8 43.6  
   65-74 0.0 0.0   52.3 51.8   4.3 3.1  
   75-84 0.0 0.0   37.6 37.7   1.5 1.2  
   85+ 0.0 0.0   8.7 8.7   0.2 0.7  
Gender          
   Male 68.7 69.3 0.574 65.4 64.6 0.557 58.8 58.1 0.813
   Female 31.3 30.7    34.6 35.4 41.2 41.9  
Urbanicity          
   Urban 81.7 82.5 0.471 81.3 82.6 0.489 67.2 67.5 0.604
   Rural 17.7 17.1   18.4 17.1   32.6 32.5  
   Missing 0.6 0.4   0.3 0.3   0.2 0  
Geographic Region          
   Northeast 12.1 12.5 0.392 9.6 9.7 0.191 n.a   
   Northcentral 26.1 27.6   38.2 41.5     
   South 44.6 43.8   32.8 31.0     
   West 16.6 15.6   19.1 17.5     
   Unknown 0.6 0.5   0.3 0.3     
Employee Relationship          
   Employee 69.5 69.6 0.006 78.6 79.5 0.208 n.a   
   Spouse 29.8 28.9   21.2 20.4     
   Child/dependent 0.7 1.5   0.2 0.0     
Employee Classification Salaried/Hourly          
   Salary 19.4 20.8 0.003 23.4 23.8   n.a   
   Hourly 23.3 25.7   38.2 37.9     
   Unknown/missing 57.4 53.5   38.4 38.4     
Union/non-union          
   Union 22.3 25.6 <0.001 40.9 40.3 0.278 n.a   
   Non-union 33.4 34.7   34.7 36.8     
   Unknown/missing 44.3 39.7    24.4 22.9    
Employment          
   Active, full time 50.1 50.1 <0.001 1.5 1.4 0.131 n.a   
   Active, part time/seasonal 0.9 0.8   0.0 0.0     
   Retire 23.4 27.2   90.7 88.9     
   Other/unknown/missing 25.7 21.9   7.8 9.6     
Insurance Plan Type          
   Comprehensive/FFS 11.6 11.5 0.522 61.4 62.7 0.540 64.4 63.2 0.671
   EPO 0.6 0.5   0.0 0.0   35.6 36.8  
   HMO/Managed Care 16.3 15.8   7.7 8.0     
   POS 11.2 11.6   1.9 1.6     
   PPO 56.0 55.9   27.5 25.7     
   POS with capitation 1.3 1.7   0.0 0.0     
   CDHP 1.9 2.1   0.1 0.3     
   Missing 1.2 0.9   1.4 1.7     
Year of Index Date          
   2005 40.6 42.7 0.155 45.5 47.7 0.225 54.5 56.1 0.739
   2006 32.6 31.1   30.0 29.8   26.7 26.8  
   2007 26.8 26.2   24.4 22.5   18.8 17.1  
   Charlson Comorbidity Index (CCI) 1.67 0.31 <0.001 1.88 0.73 <0.001 2.31 0.81 <0.001
   Modified CCIB 0.21 0.20 0.2457 0.47 0.43 0.1303 0.59 0.56 0.6345
   Number of psychiatric 0.12 0.11 0.414 0.06 0.05 0.128 0.50 0.53 0.633
Diagnosis Groups (PDGs)          
Median Household Income in ZIP $48,710 $48,799 0.828 $46,118 $46,708 0.128 $33,305 $32,782 0.405
Fraction College Graduates in ZIP 0.26 0.26   0.23 0.24   0.16 0.16 0.834
Race/Ethnicity n.a    n.a      
   White        52.3 49.4 0.562
   Black        34.7 36.2  
   Hispanic        0.7 14.0  
   Other        12.3 14.0  
Medicaid Eligibility n.a    n.a      
   Blinded/Disabled        82.1 82.4 0.957
   Aged        4.3 3.9  
   Other        13.7 13.7  
Medicare Eligibility n.a    n.a      
   Yes        6.0 5.5 0.706
   No        94.0 94.5  
  1. For sample with 1 year of follow-up in the Medical care data.
  2. Notes
  3. A. P-value from test of the significance of difference between the OC/OP cancer group and matched comparison group.
  4. B. Modified CCI recalculates the CCI excluding tobacco and cancer related diagnoses.