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Table 1 Patient demographic and clinical characteristics by ACS index event treatment strategy

From: Economic burden of illness of acute coronary syndromes: medical and productivity costs

Variables MM
n = 4,894
PCI
n = 4,729
CABG
n = 864
p-value*
Age, mean (SD) 54.3 (7.3) 54.8 (6.6) 56.5 (5.7) a,b,c
Age group (%)
   18-34 years 1.6 0.7 0.1 a,b,c
   35-44 years 9.1 7.1 3.8  
   45-54 years 32.3 34.0 28.0  
   55-64 years 57.0 58.2 68.1  
Gender (%)
   Female 42.2 21.0 22.1 b,c
Plan Type (%)
   Comprehensive 19.1 17.0 19.4 b,c
   HMO 21.0 16.0 14.0  
   PPO 46.9 52.6 52.7  
   POS 12.5 13.7 13.2  
   Unknown 0.5 0.7 0.7  
Region (%)
   Northeast 8.2 7.0 5.7 n.s.
   Northcentral 35.6 36.2 35.9  
   South 40.0 41.2 44.7  
   West 15.9 15.2 13.4  
   Unknown 0.4 0.3 0.3  
Comorbidities (%)
   Diabetes without chronic complications 25.0 18.2 24.9 a,b
   Diabetes with chronic complications 3.1 1.4 2.1 b
   Congestive heart failure 7.5 2.0 2.4 b,c
   Cerebrovascular disease 7.0 3.2 4.4 b,c
   Peripheral vascular disease 3.4 1.8 1.9 b,c
   Renal disease 3.4 1.3 1.6 b,c
   Rheumatologic disease 2.1 1.3 1.7 b
   Peptic ulcer disease 0.8 0.5 0.5 n.s.
   Chronic pulmonary disease 14.2 10.2 8.8 b,c
   Any malignancy 4.4 3.4 3.7 b
   Metastatic solid tumor 0.6 0.3 0.1 b
   Mild liver disease 0.6 0.2 0.2 b
   Moderate or severe liver disease 0.2 0.06 0.1 b
   AIDS 0.2 0.2 0 n.s.
   Dementia 0.2 0.1 0.1 n.s.
   Hemiplegia or paraplegia 0.2 0.02 0.1 b
Mean (SD) Charlson Comorbidity Score 0.75 (1.16) 0.48 (0.89) 0.56 (0.88) a,b,c
MI listed as the primary diagnosis (%) 34.2 69.9 57.9 a,b,c
Length of stay (days)
   Mean (SD) 1.63 (3.01) 3.14 (2.41) 8.65 (5.15) a,b,c
   Median 1 3 8  
   75th percentile 2 4 10  
Mortality rate at hospital discharge 0.2 0.1 0.2 n.s.
  1. *n.s. = not significant; a = p < 0.05 CABG vs. PCI; b = p < 0.05 MM vs. PCI; c = p < 0.05 MM vs. CABG.
  2. CABG = coronary artery bypass graft; HMO = health maintenance organization; MI = myocardial infarction; MM = medical management; PCI = percutaneous coronary intervention; POS = point of service; PPO = preferred provider organization; SD = standard deviation.