| | Clinicopathological parameters | Values | p-Value | | ER/PR expression | | Positive | Negative |
| | Age (years), Mean ± SD | 53.17 ± 13.16 | 51.70 ± 11.73 | 0.504 | | Age group | | ≤35 years, n (%) | 2 (4.3) | 14 (14.9) | 0.181 | | 36–50 years, n (%) | 18 (39.1) | 34 (36.2) | | >50 years, n (%) | 26 (56.5) | 46 (48.9) | | Follow-up duration (months), Mean ± SD | 4.52 ± 1.88 | 3.95 ± 1.86 | 0.096 | | Tumor laterality | | Right breast, n (%) | 20 (43.5) | 58 (61.7) | 0.041 | | Left breast, n (%) | 26 (56.5) | 36 (38.3) | | Tumor size (cm), n = 92 | 4.20 ± 1.88 | 6.62 ± 3.43 | 0.003 | | Tumor (T) stage, n = 92 | | T1, n (%) | 4 (16.7) | 8 (11.8) | <0.001 | | T2, n (%) | 16 (66.7) | 18 (26.5) | | T3, n (%) | 4 (16.7) | 42 (61.8) | | Tumor grade | | Grade 2, n (%) | 20 (43.5) | 14 (14.9) | <0.001 | | Grade 3, n (%) | 26 (56.5) | 80 (85.1) | | Squamous differentiation | | Present, n (%) | 30 (65.2) | 66 (70.2) | 0.550 | | Absent, n (%) | 16 (34.8) | 28 (29.8) | | Chondroid differentiation | | Present, n (%) | 4 (8.7) | 4 (4.3) | 0.439 | | Absent, n (%) | 42 (91.3) | 90 (95.7) | | Spindle cell differentiation | | Present, n (%) | 4 (8.7) | 12 (12.8) | 0.477 | | Absent, n (%) | 42 (91.3) | 82 (87.2) | | Nodal (N) stage, n = 92, n (%) | | N0, n (%) | 14 (58.3) | 38 (55.9) | 0.107 | | N1, n (%) | 4 (16.7) | 14 (20.8) | | N2, n (%) | 5 (20.8) | 4 (5.9) | | N3, n (%) | 1 (4.2) | 12 (17.6) | | Recurrence, n (%) | | Yes, n (%) | 20 (43.5) | 24 (25.5) | 0.032 | | No, n (%) | 26 (56.5) | 70 (74.5) | | Survival status, n (%) | | Alive, n (%) | 34 (73.9) | 66 (70.2) | 0.649 | | Expired, n (%) | 12 (26.1) | 28 (29.8) |
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