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Table 2

General characteristics and genotype distributions of studied genes in the ICS and control groups.

  ICsa Control p value
Gender, n (%)      
  Male 58 (65.2) 27 (67.5) 0.48
  Female 31 (34.8) 13 (32.5)  
Mean age, years ± S.D. 41.5 ± 7.5 41.4 ± 9.0 0.93
Smoking habits, n (%)      
  Yes 3 (3.5) 4 (10.0) 0.13
  No 83 (96.5) 36 (90.0)  
Mean time exposure, years ± S.D. 9.5 ± 6.7 13.8 ± 7.7 0.21
Mean last year exposure mSv ± SD 3.5 ± 3.4  
Mean last five years exposure mSv ± SD 11.1 ± 10.0  
Mean MN frequency ± SD (‰) 27.7 ± 17.2 (89) 8.0 ± 2.6 (40) < 0.0005
Nuclear division index (NDI) 1.7 ± 0.1 1.7 ± 0.1 0.32
XRCC1 codon 194, n (%)     0.82
   Wild: Arg/Arg 77 (86.5) 34 (85)  
   Variant: Trp/ Trp 0 0  
   Variant: Arg/ Trp 12 (13.5) 6 (15)  
XRCC3 codon 241, n (%)     0.72
   Wild: Thr/ Thr 42 (47.2) 17 (42.5)  
   Variant:Met/Met 11 (12.4) 7 (17.5)  
   Variant: Thr/Met 36 (40.4) 16 (40)  
XPD codon 751, n (%)     0.003
   Wild: Lys/Lys 39 (43.8) 7 (17.5)  
   Variant:Gln/Gln 16 (18.0) 17 (42.5)  
   Variant: Lys/ Gln 34 (38.2) 16 (40)  
MSH3 codon 1036, n (%)     0.4
   Wild: Ala/ Ala 8 (9.0) 1 (2.5)  
   Variant :Thr/ Thr 50 (56.2) 25 (62.5)  
   Variant: Ala/ Thr 31 (34.8) 14 (35.0)  
a

Interventional cardiologists.

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