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Table 2 Demographic characteristics for the commercial and Medicare data sets, stratified by complexity

From: Identifying and characterizing COPD patients in US managed care. A retrospective, cross-sectional analysis of administrative claims data

  Commercial dataset Medicare dataset
  All patients Low complexity Moderate complexity High complexity All patients Low complexity Moderate complexity High complexity
  (n = 42,565) (n = 19,154; 45.0%) (n = 14,290; 33.6%) (n = 9,121; 21.4%) (n = 8,507) (n = 3,110; 36.6%) (n = 3,047; 35.8%) (n = 2,350; 27.6%)
Parameter         
Age, years         
   Median 56 56 57 57 75 75 75 75
Age categories, n (% of column)
   40-44 years 2,960 (7.0) 1,471 (7.68) 917 (6.42) 572 (6.27) 15 (0.2) 2 (0.1) 10 (0.3) 3 (0.1)
   45-54 years 14,432 (33.9) 6,704 (35.0) 4,817 (33.7) 2,911 (31.9) 125 (1.5) 40 (1.3) 41 (1.3) 44 (1.9)
   55-64 years 25,173 (59.1) 10,979 (57.3) 8,556 (59.9) 5,638 (61.8) 460 (5.4) 134 (4.3) 171 (5.6) 155 (6.6)
   65-74 years 0 (0) 0 (0) 0 (0) 0 (0) 3,367 (39.6) 1,295 (41.6) 1,176 (38.6) 896 (38.1)
   75-84 years 0 (0) 0 (0) 0 (0) 0 (0) 3,625 (42.6) 1,324 (42.6) 1,296 (42.5) 1,005 (42.8)
   ≥85 years 0 (0) 0 (0) 0 (0) 0 (0) 915 (10.8) 315 (10.1) 353 (11.6) 247 (10.5)
Gender (%, of column)
   Female 51.4 49.2 54.7 50.7 53.1 53.6 54.2 51.2