Table 1 Comparison of the general data for patients between the ES group and OS group
ES group (n = 39) | OS group (n = 44) | u/t/χ2 | P | |
|---|---|---|---|---|
Age (y) | 18(13–19) | 18(13–22) | 778 | 0.311 |
Maximum tumour diameter (cm) | 3.64 ± 1.08 | 3.69 ± 1.14 | -0.214 | 0.831 |
Number of tumours (n) | 2(1–4) | 2(1–4) | 626.5 | 0.026 |
Postoperative hospital stay (h) | 19.5(16–22) | 19.8(16–22) | 721 | 0.211 |
Distance from the centre of the nipple to the distal end of the tumour(cm) | 4.45 ± 2.40 | 4.65 ± 2.43 | -0.375 | 0.709 |
Lesion site, (n) | 0.025 | 0.875 | ||
Left | 17(43.6) | 21(47.7) | ||
Right | 22(56.4) | 23(52.3) | ||
Lesion area, (n) | 0.843 | 0.933 | ||
Upper outer quadrant | 14(35.9) | 13(29.5) | ||
Lower inner quadrant | 3(8.7) | 4(9) | ||
Upper inner quadrant | 4(10.3) | 7(15.9) | ||
Lower outer quadrant | 5(12.8) | 5(11.4) | ||
Multi quadrant | 13(33.3) | 15(34.1) |