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Table 1 Demographic features

From: Risk of whole body radiation exposure and protective measures in fluoroscopically guided interventional techniques: a prospective evaluation

   Group I Group II Group III
Number of patients   201 446 509
Number of procedures   330 662 827
Age [yrs] [mean ± SEM ]   52 ± 1.1 50 ± 0.7 50 ± 0.6
Gender     
  Male 40% [81] 33% [146] 34% [175]
  Female 60% [119] 67% [300] 66% [334]
Body mass index [mean ± SEM]   29.4 ± 0.56 29.1 ± 0.37 28.6 ± 0.31