| Frequency | |
---|
Gene and genotype | Cases,a | n (%) | Reportedb | Reference |
---|
GSTM-1
| 94 | | | |
null/null | 38 (40.4) | 42–60 | (20,29,32,39) |
+∫+/null | 56 (59.6) | 40–58 | |
GSTT-1
| 94 | | | |
null/null | 17 (18) | 16–21.5 | (29,32) |
+∫+/null | 77 (82) | 78.5–84 | |
NAT-2
| 94 | | | |
Rapid | 7 (7.4) | 52 (55.3) | 36.8–60.1 | (20,40) |
Intermediate | 45 (47.9) | | |
Slow | 42 (44.7) | 39.9–63.2 | |
- aFrequency found in nontumoral samples with n number of case studied for each gene.
- bAverage frequency and standard deviations estimated according to the data published by other groups (bibliographic reference), in normal subjects of similar ethnicity (since it works with the average, the sum of the averages of the two genotypes of a particular gene may be less than 100).