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Table 1 Incident cases of malignant mesothelioma recorded by the Italian national mesothelioma registry (ReNaM) selected for the cluster analysis

From: Epidemiological patterns of asbestos exposure and spatial clusters of incident cases of malignant mesothelioma from the Italian national registry

   Men Women
   Number of cases % Number of cases %
Age class 0-54 1,046 9.6 450 10.3
  55-64 2,646 24.1 856 19.7
  65-74 4,015 36.6 1,404 32.2
  75+ 3,257 29.7 1,648 37.8
Period of diagnosis 1993-1996 1,042 9.5 382 8.8
  1997-2000 2,271 20.7 884 20.3
  2001-2004 3,706 33.8 1,503 34.5
  2005-2008 3,945 36.0 1,589 36.4
Area Northwest 5,158 47.1 2,423 55.6
  Northeast 2,586 23.6 901 20.7
  Centre 1,450 13.2 454 10.4
  South & Islands 1,770 16.1 580 13.3
Diagnostic certainty Definite 8,708 79.4 3,234 74.2
  Probable 1,142 10.4 574 13.2
  Possible 1,114 10.2 550 12.6
Site of lesion Pleura 10,312 94.0 3,941 90.4
  Peritoneum 579 5.3 403 9.3
  Pericardium 26 0.2 14 0.3
  Testis 47 0.4 - -
Exposure ascertainment Direct interview 4,585 41.8 1,401 32.2
  Indirect interview 4,139 37.8 1,727 39.6
  No interview 2,240 20.4 1,230 28.2
Type of exposure Occupational, definite 4,987 45.5 526 12.1
  Occupational, probable 890 8.1 112 2.6
  Occupational, possible 1,291 11.8 402 9.2
  Familial 76 0.7 446 10.2
  Environmental 214 1.9 294 6.7
  Other non-occupational 80 0.7 108 2.5
  Unlikely 193 1.8 223 5.1
  Unknown 993 9.1 1,017 23.3
  Undefined 2,240 20.4 1,230 28.2
Total   10,964   4,358  
  1. Italy, 1993–2008 (N = 15,322).
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