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Table 1 Number of persons included in this analysis, by center and histologic type

From: Occupation and skin cancer: the results of the HELIOS-I multicenter case-control study

Center Total number Cases BCC SCC Controls
Granada 626 310 263 33 316
Murcia 548 295 228 57 253
Besançon 495 247 203 28 248
Villejuif 196 98 82 11 98
Créteil 190 95 80 12 95
Turin 829 432 400 24 397
Ragusa 208 108 77 18 100
Total 3092 1585 1333 183 1507
  1. BCC: basal cell carcinomas
  2. SCC: squamous cell carcinomas
  3. In 69 cases there was no record of histologic type