Table 5 The genotype and allele frequency and odds ratios (OR) of the Arg194Trp polymorphism of XRCC1 gene in patients with head and neck cancer with different tumor size and lymph node status.
| Â | Tumour size (T) | Node status (N) | ||||
|---|---|---|---|---|---|---|
Genotype Allele | T3 + T4 Number/Frequency | T1+ T2 Number/Frequency | OR (95% CI) | N1 + N2 + N3 Number/Frequency | N0 Number/Frequency | OR (95% CI) |
Arg/Arg | 43 (0.72) | 28 (0.88) | 0.36 (0.11 – 1.19) | 20 (0.67) | 51 (0.82) | 0.43 (0.16 – 1.67) |
Arg/Trp | 17 (0.28) | 4 (0.12) | 2.76 (0.84 – 9.08) | 10 (0.33) | 11 (0.18) | 2.32 (0.85 – 6.30) |
Trp/Trp | 0 (0.00) | 0 (0.00) | --------- | 0 (0.00) | 0 (0.00) | --------- |
Arg | 103 (0.86) | 60 (0.96) | 0.40 (0.13 – 1.27) | 50 (0.83) | 113 (0.91) | 0.48 (0.19 – 1.32) |
Trp | 17 (0.14) | 4 (0.14) | 2.47 (0.80 – 7.70) | 10 (0.17) | 11 (0.09) | 2.05 (0.82 – 5.14) |