Sociodemographic characteristics, cigarette smoking status, cancer stage, tumor grade, XRCC1 genotypes, and urinary 8-OHdG level of urolethial carcinoma (UC) cases and healthy, non-UC controls.

<p>^<b>†</b>Adjusted for age, gender, educational level, and cigarette smoking status.</p><p>^a Stage was unavailable for sixteen cases; grade was unavailable for eleven cases.</p><p>^b The UC risks of the <i>XRCC1 Arg194Trp</i> and <i>XRCC1 Arg399Gln</i> genotypes were adjusted for multiple comparisons; a two-sided <i>p</i>-value < 0.025 was considered statistically significant.</p><p>^<b>#</b>0.05 ≤ <i>P</i> < 0.1;</p><p>*<i>P</i> < 0.05;</p><p>**<i>P</i> < 0.01;</p><p>^<b>§</b><i>P</i> < 0.05 for trend test.</p><p>Sociodemographic characteristics, cigarette smoking status, cancer stage, tumor grade, XRCC1 genotypes, and urinary 8-OHdG level of urolethial carcinoma (UC) cases and healthy, non-UC controls.</p

Comparison of urinary 8-OHdG levels between UC cases and healthy controls.

<p>(A) <i>XRCC1</i> (Arg399Gln) genotypes. (B) <i>XRCC1</i> (Arg194Trp) genotypes. (C) <i>XRCC1</i> haplotypes.</p