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. Author manuscript; available in PMC: 2025 Apr 1.
Published in final edited form as: J Cardiol. 2023 Aug 8;83(4):280–283. doi: 10.1016/j.jjcc.2023.08.002

Table 1.

Sociodemographic and clinical characteristics of patients eligible for cardiac rehabilitation, by educational attainment.

Variable Overall N = 171,297 Educational Attainment
≤ High School Diploma n = 54,269 (31.7%) Some College n = 93,893 (54.8%) ≥ Bachelor’s Degree n = 23,135 (13.5%)

Demographics
 Age (years), mean ± SD 70.4 (11.6) 69.6 (11.3) 70.8 (11.5) 71.1 (12.3)
 Female sex, n (%) 64125 (37.4%) 21921 (40.4%) 34719 (37.0%) 7485 (32.4%)
 Race or ethnicity, n (%)
  Asian 4565 (2.7%) 870 (1.6%) 2396 (2.6%) 1299 (5.6%)
  Black 19987 (11.7%) 10647 (19.6%) 8426 (9.0%) 914 (4.0%)
  Hispanic 18272 (10.7%) 9006 (16.6%) 7864 (8.4%) 1402 (6.1%)
  White 128473 (75.0%) 33746 (62.2%) 75207 (80.1%) 19520 (84.4%)
 Household income, n (%)
  <$40,000 52835 (30.8%) 27646 (50.9%) 23389 (24.9%) 1800 (7.8%)
  $40,000–49,999 15743 (9.2%) 6768 (12.5%) 8331 (8.9%) 644 (2.8%)
  $50,000–59,999 16307 (9.5%) 6073 (11.2%) 9288 (9.9%) 946 (4.1%)
  $60,000–74,999 19926 (11.6%) 5156 (9.5%) 12849 (13.7%) 1921 (8.3%)
  $75,000–99,999 25618 (15.0%) 4020 (7.4%) 17888 (19.1%) 3710 (16.0%)
  ≥$100,000 33490 (19.6%) 1520 (2.8%) 18589 (19.8%) 13381 (57.8%)
  Unknown 7378 (4.3%) 3086 (5.7%) 3559 (3.8%) 733 (3.2%)
CR qualifying diagnosis, n (%)
 Myocardial Infarction 99443 (58.1%) 33101 (61.0%) 54143 (57.7%) 12199 (52.7%)
 CABG 23735 (13.9%) 7374 (13.6%) 13132 (14.0%) 3229 (14.0%)
 Valve repair/replacement 32309 (18.9%) 8195 (15.1%) 18391 (19.6%) 5723 (24.7%)
 PCI/stent 72243 (42.2%) 23622 (43.5%) 39501 (42.1%) 9120 (39.4%)
Insurance type, n (%)
 Commercial 40523 (23.7%) 11112 (20.5%) 22420 (23.9%) 6991 (30.2%)
 Medicare 106115 (62.0%) 29524 (54.4%) 61603 (65.6%) 14988 (64.8%)
 Low-income 15918 (9.3%) 8844 (16.3%) 6385 (6.8%) 689 (3.0%)
 Medicare + Medicaid 8741 (5.1%) 4789 (8.8%) 3485 (3.7%) 467 (2.0%)
Elixhauser Comorbidity Index, median (25th, 75th) 7 (4, 10) 7 (5, 10) 7 (4, 10) 6 (4, 9)
Follow-up time (months), median (25th, 75th) 29.6 (18.4, 43.4) 28.4 (16.5, 42.3) 30.1 (19.1, 43.8) 30.7 (20.9, 44.1)

CABG, coronary artery bypass graft; CR, cardiac rehabilitation; PCI, percutaneous coronary intervention.