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Table 1 Characteristics of the sample (n = 192,327 * )

From: Comorbidity profiles and inpatient outcomes during hospitalization for heart failure: an analysis of the U.S. Nationwide inpatient sample

Discharge and hospital characteristics Estimate (mean or proportion) 95% CI
Age (in years) 72.88 (72.82-72.95)
Gender (% female) 50.77% (50.55%-51.00%)
Race/Ethnicity   
 White 68.02% (67.79%-68.24%)
 Black 18.98% (18.79%-19.17%)
 Hispanic 7.73% (7.61%-7.86%)
 Asian or Pacific Islander 1.79% (1.72%-1.85%)
 Native American 0.54% (0.51%-0.58%)
 Other 0.30% (0.29%-0.30%)
Median zip code income national quartile   
 First 31.60% (31.39%-31.81%)
 Second 27.00% (26.80%-27.21%)
 Third 22.63% (22.44%-22.82%)
 Fourth 18.77% (18.59%-18.95%)
Primary healthcare payer   
 Medicare 74.31% (74.11%-74.51%)
 Medicaid 7.99% (7.87%-8.11%)
 Private insurance 12.24% (12.09%-12.39%)
 Self-pay 3.54% (3.46%-3.63%)
 No charge 0.32% (0.30%-0.36%)
 Other 1.59% (1.54%-1.65%)
Admission on a weekend 23.42% (23.23%-23.60%)
Hospital bed size   
 Small 13.28% (13.12%-13.43%)
 Medium 23.88% (23.68%-24.07%)
 Large 62.85% (62.63%-63.07%)
Control   
 Government or private 59.53% (59.31%-59.75%)
 Government, nonfederal 7.18% (7.07%-7.30%)
 Private, non-profit 18.37% (18.20%-18.55%)
 Private, investor owned 10.72% (10.58%-10.86%)
 Private 4.19% (4.10%-4.28%)
Location   
 Rural 14.92% (14.76%-15.08%)
 Urban 85.08% (84.92%-85.23%)
Region   
 Northeast 22.35% (22.16%-22.54%)
 Midwest 23.40% (23.21%-23.59%)
 South 39.37% (39.15%-39.59%)
 West 14.87% (14.72%-15.03%)
Teaching status   
 Non-teaching 58.78% (58.56%-59.00%)
 Teaching 41.22% (41.00%-41.44%)
  1. *Estimates generated using discharge weights (population estimate n = 976,664).
  2. data missing for 14.3% of discharges. CI, confidence interval.