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Table 4 Age and gender specific asthma and COPD distribution and prevalence according to the different algorithms implemented

From: Can healthcare utilization data reliably capture cases of chronic respiratory diseases? a cross-sectional investigation in Italy

  Age Males (%) Prevalence % Females (%) Prevalence %
COPD (patients aged 40 years or older)
 Reference algorithm 40–59 24,622 (23.1) 1.6 27,082(27.0) 8.3
60–79 59,746 (56.1) 6.0 49,430(49.3) 11.3
80+ 22,120 (20.8) 10.6 23,733(23.7) 11.7
Total 106,488 3.9 100,244 9.9
 Permissive algorithm 40–59 90,918 (37.6) 6.0 123,519 (40.7) 8.3
60–79 113,182 (46.8) 11.3 129,519 (42.7) 11.3
80+ 37,803 (15.6) 18.0 50,579 (16.7) 11.7
Total 241,903 8.9 303,617 9.9
 Restrictive algorithm 40–59 27,154 (25.4) 1.8 32,538 (29.5) 2.2
60–79 56,286 (52.6) 5.6 52,108 (47.4) 4.6
80+ 23,611 (22.0) 11.3 25,398 (23.1) 5.9
Total 107,051 3.9 110,044 3.6
Asthma (patients aged 40 years or younger)
 Reference algorithm 0–19 18,770 (48.6) 1.9 40,489 (38.7) 4.4
20–39 19,844 (51.4) 1.6 64,069 (61.3) 5.3
Total 38,613 1.7 104,558 4.9
 Permissive algorithm 0–19 169,642 (73.5) 17.2 132,105 (63.1) 14.3
20–39 61,046 (26.5) 4.9 77,337 (36.9) 6.4
Total 230,688 10.4 209,442 9.9
 Restrictive algorithm 0–19 57,395 (71.7) 5.8 38,572 (61.8) 4.2
20–39 22,698 (28.3) 1.8 23,817 (38.2) 2.0
Total 80,093 3.6 62,389 2.9