Table 3 Comparison of mammographic density between breast cancer cases and controls
From: TNRC9 rs12443621 and FGFR2 rs2981582 polymorphisms and breast cancer risk
Category 1 | Category 2 | Category 3 | Category 4 | Total | χ 2 | P | |
|---|---|---|---|---|---|---|---|
Cases | 8(8.89) | 27(30.00) | 51(56.67) | 4(4.44) | 90 | ||
Controls | 8(3.49) | 101(44.10) | 114(49.78) | 6(2.62) | 229 | 4.453 | 0.035 |
Totals | 16 | 128 | 165 | 10 | 319 |