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. 2016 May 4;5(5):e002721. doi: 10.1161/JAHA.115.002721

Table 1.

Baseline Characteristics of the ORBIT‐AF Population by Medicaid Enrollment

Variable Non‐Medicaid (n=9663; 95.4%) Medicaid (n=470; 4.6%) P Valuea
Age, y, median (IQR) 75.0 (67.0–82.0) 70.0 (61.0–79.0) <0.0001
Female sex 41.8 53.0 <0.0001
Race <0.0001
White 90.7 58.7
Black or African American 4.4 18.1
Hispanic 3.5 19.4
Other 1.3 3.4
Insurance provider
Other 2.7 <0.0001
Medicare 68.1
Private 26.8
Military health care 1.1
State‐specific plan (non‐Medicaid) 0.3
None 1.0
Education
Some school 12.9 37.7 <0.0001
High school graduate 51.6 41.9
College graduate 22.9 15.5
Postgraduate 8.5 2.8
Medical history
CHF 31.8 47.5 <0.0001
Past stroke/TIA 14.8 22.3 <0.0001
COPD 15.9 25.7 <0.0001
Current smoker 5.5 12.3 <0.0001
Diabetes 29.0 38.5 <0.0001
Hypertension 82.8 88.9 0.0005
Obstructive sleep apnea 18.1 20.0 0.29
CHADS2, median 2.0 2.0 <0.0001
IQR 1.0, 3.0 2.0, 3.0
CHA2DS2‐VASc, median 4.0 4.0 <0.0001
IQR 3.0, 5.0 3.0, 6.0
CHADS2 ≥2 71.5 78.7 <0.0001
ATRIA, median 3.0 3.0 0.20
IQR 1.0, 4.0 1.0, 4.0

ATRIA indicates Anticoagulation and Risk Factors in Atrial Fibrillation (ATRIA) study cohort; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; HS, high school; IQR, interquartile range; ORBIT‐AF, Outcomes Registry for Better Informed Treatment of Atrial Fibrillation; TIA, transient ischemic attack.

a

P values from Pearson chi‐square tests for categorical variables and Wilcoxon rank‐sum tests for continuous variables.