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Table 1 Patient characteristics as of 1/1/2014 (unless otherwise noted) among cancer survivors in Medicaid expansion and non-expansion states, before and after inverse probability of treatment weighting

From: Affordable Care Act Medicaid expansion and access to primary-care based smoking cessation assistance among cancer survivors: an observational cohort study

Characteristic Original Sample Propensity-weighted Sample
Non-Expansion Expansion   Non-Expansion Expansion  
(n = 476) % (n = 2441) % ASMD (ESS = 471.32) % (ESS = 2439.85) % ASMD
Age group    0.1068    0.0319
 18-39 9.2 11.8   11.7 11.4  
 40-49 19.5 20.9   21.0 20.7  
 50-64 71.2 67.4   67.3 67.9  
Sex    0.0524    0.0743
 Female 64.5 67.0   70.2 66.8  
 Male 35.5 33.0   29.8 33.2  
Race/ethnicity    0.5032    0.0547
 Hispanic 9.7 5.7   6.3 6.4  
 Missing 4.6 3.2   4.3 3.4  
 Non-Hispanic Black 23.1 8.3   10.6 10.6  
 Non-Hispanic Other 1.5 2.4   2.2 2.3  
 Non-Hispanic white 61.1 80.5   76.7 77.4  
FPL %    0.3538    0.0742
  ≤ 138% 74.8 65.6   69.6 67.2  
  > 138% 14.1 9.8   10.4 10.4  
 missing 11.1 24.7   20.0 22.4  
Insurance status in 2013    0.1108    0.0960
 Continuous Private 9.7 7.3   7.2 7.7  
 Continuous or Some Public 53.2 56.0   58.0 55.5  
 Continuous Uninsured 24.6 25.4   22.1 25.2  
 Discontinuously Insured 12.6 11.3   12.7 11.6  
Ambulatory visits in 2013    0.1888    0.0502
 1 10.9 14.7   12.9 14.0  
 2-3 31.3 26.0   28.7 26.9  
 4-6 32.6 28.9   30.2 29.5  
  > 6 25.2 30.4   28.3 29.5  
Urban/rural clinic location    0.236    0.0143
 Urban 80.3 88.7   88.0 87.6  
 Rural 19.8 11.3   12.0 12.4  
Charlson Comorbidity Index    0.0781    < 0.0001
 0 to 1 17.2 18.3   17.9 18.1  
 2 to 3 22.7 19.8   20.1 20.3  
 4 to5 29.2 31.4   31.3 30.9  
  > 5 30.9 30.6   30.8 30.6  
Depressive disorder    0.2187    0.0013
 Yes 76.7 66.9   68.6 68.5  
 No 23.3 33.1   31.4 31.5  
  1. Charlson Comorbidity Index value calculated without cancer or depression components
  2. ESS effective sample size, ASMD absolute standardized mean difference, FPL federal poverty level