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. 2012 May 7;7(5):e34967. doi: 10.1371/journal.pone.0034967

Table 3. Rates of health services claims among individuals with and without asthma in 14 disease categories, according to age (Adult population).

Health Services Claims per 1000 person years
18 to 44 years 45 to 64 years 65 years and older
Individuals with asthma Individuals without asthma Absolute rate difference Individuals with asthma Individuals without asthma Absolute rate difference Individuals with asthma Individuals without asthma Absolute rate difference
Disease Category (N = 492,044) (N = 4,154,792) (95% confidence interval) (N = 264,150) (N = 2,583,341) (95% confidence interval) (N = 166,926) (N = 1,312,931) (95% confidence interval)
Infectious and parasitic disease 239.1 171.9 67.3 (66.7, 67.8) 220.2 137.3 82.9 (82.2, 83.7) 290.7 199.1 91.7 (90.5, 92.8)
Neoplasms 148.1 128.0 20.1 (19.7, 20.6) 535.4 458.5 76.9 (75.7, 78.1) 1111.6 1027.5 84.0 (81.7, 86.4)
Endocrine, nutritional, and metabolic diseases, and immunity disorders 329.0 243.2 85.9 (85.2, 86.6) 930.0 667.7 262.3 (260.7, 263.8) 1093.0 966.1 126.9 (124.6, 129.2)
Hematologic disorders 57.2 42.5 14.7 (14.4, 15.0) 114.2 72.0 42.2 (41.7, 42.8) 317.8 246.2 71.6 (70.3, 72.8)
Psychiatric disorders 1273.2 723.2 550.0 (548.7, 551.3) 1428.7 783.1 645.6 (643.6, 647.5) 1408.0 1257.0 150.9 (148.3, 153.6)
Nervous system and sense organs 443.4 300.7 142.7 (141.9, 143.5) 820.1 564.2 255.8 (254.4, 257.3) 1684.8 1426.1 258.7 (255.8, 261.6)
Circulatory system 382.9 281.5 101.4 (100.7, 102.2) 1661.3 1199.3 462.0 (459.9, 464.1) 4342.6 3573.0 769.6 (765.0, 774.3)
Digestive system 509.7 324.9 184.8 (183.9, 185.7) 829.5 529.6 299.9 (298.4, 301.3) 1236.9 882.3 354.6 (352.1, 357.1)
Genitourinary system 627.5 458.7 168.8 (167.8, 169.7) 734.6 509.4 225.3 (223.9, 226.7) 1099.8 885.1 214.7 (212.4, 217.0)
Pregnancy, childbirth and the puerperium 310.2 241.6 68.6 (68.0, 69.3) 2.1 1.4 0.7 (0.6, 0.7) na na na
Skin and subcutaneous tissue 365.3 270.8 94.5 (93.7, 95.2) 443.8 302.0 141.8 (140.7, 142.8) 598.4 479.3 119.1 (117.3, 120.8)
Musculoskeletal system and connective tissue 618.4 398.1 220.3 (219.3, 221.2) 1383.6 807.8 575.8 (573.9, 577.7) 1732.3 1267.2 465.1 (462.2, 468.0)
Injury and poisoning 510.5 342.1 168.3 (167.5, 169.2) 653.6 413.2 240.4 (239.1, 241.7) 945.9 720.2 225.7 (223.6, 227.9)
Respiratory system other than asthma 979.4 497.6 481.8 (480.6, 483.0) 1588.9 536.6 1052.3 (1050.3, 1054.3) 2853.5 926.9 1926.7 (1923.0, 1930.3)

na, not applicable.