Estudios originales
Published on 19 de agosto de 2026 | http://doi.org/10.5867/medwave.2026.07.3216
Efficacy and safety of goserelin vs. leuprolide in premenopausal breast cancer patients receiving adjuvant endocrine therapy: A retrospective cohort study
Back to article
Baseline characteristics of the study subjects.
| Age (years) | 44.76±0.74 | 43.99±0.64 | 0.432 | 0.77 (-0.58 to 2.12) |
| Married (n) | 85 (94.44%) | 92 (94.85%) | 0.903 | -0.41 (-6.88 to 6.06) |
| Reproductive Status (n) | 80 (88.89%) | 90 (92.78%) | 0.357 | -3.89 (-12.18 to 4.40) |
| Body mass index (kg/m2) | 21.63±2.71 | 21.81±2.19 | 0.598 | -0.18 (-0.90 to 0.54) |
| Age at menarche (years) | 14.17±0.72 | 14.42±0.69 | 0.300 | -0.25 (-0.55 to 0.05) |
| Surgery type | 0.832 | |||
| Mastectomy | 51 (56.67%) | 53 (54.64%) | 2.03 (-12.22 to 16.28) | |
| Breast-conserving surgery | 39 (43.33%) | 44 (45.36%) | -2.03 (-16.28 to 12.22) | |
| Stage | 0.437 | |||
| I | 13 (14.44%) | 11 (11.34%) | 3.10 (-6.52 to 12.72) | |
| II | 57 (63.33%) | 61 (62.89) | 0.44 (-13.40 to 14.28) | |
| III | 20 (22.23%) | 25 (25.77%) | -3.55 (-15.77 to 8.69) | |
| ER Status (n) | 0.512 | |||
| ≤50% | 12 (13.33%) | 15 (15.46%) | ||
| >50% | 78 (86.67%) | 82 (84.54%) | 2.13 (-7.92 to 12.18) | |
| PR Status (n) | 0.721 | |||
| ≤50% | 21 (23.33%) | 26 (26.80%) | ||
| >50% | 69 (76.67%) | 71 (73.20%) | 3.47 (-8.94 to 15.88) | |
| Ki-67 Status (n) | 0.667 | |||
| ≤20% | 57 (63.33%) | 65 (67.01%) | ||
| >20% | 33 (36.67%) | 32 (32.99%) | 3.68 (-9.98, to 17.34) | |
| pT Stage | 0.568 | |||
| T0 | 35 (38.89%) | 34 (35.05%) | 3.84 (-10.00 to 17.68) | |
| T1 | 30 (33.33%) | 36 (37.11%) | -3.78 (-17.46, to 9.90) | |
| T2 | 23 (25.56%) | 24 (24.74%) | 0.82 (-11.63 to 13.27) | |
| T3 | 2 (2.22%) | 3 (3.10%) | -0.88 (-5.49 to 3.73) | |
| pN Stage | 0.418 | |||
| N0 | 45 (50%) | 52 (53.81%) | -3.61 (-18.14 to 10.52) | |
| N1 | 38 (42.22%) | 33 (34.02%) | 8.20 (-5.70 to 22.10) | |
| N2 | 6 (6.67%) | 9 (9.28%) | -2.61 (-10.35 to 5.13) | |
| N3 | 1 (1.11%) | 3 (3.09%) | -1.98 (-6.06 to 2.10) | |
| Chemotherapy regimen | 0.723 | |||
| AC | 13 (14.44%) | 16 (16.49%) | -2.05 (-12.40 to 8.30) | |
| AC followed by taxane | 77 (85.56%) | 81 (83.51%) | 2.05 (-8.30 to 12.40) | |
| Taxane type | 0.711 | |||
| Paclitaxel | 34 (37.78%) | 39 (40.21%) | −2.43 (−16.38 to 11.52) | |
| Docetaxel | 56 (62.22%) | 58 (59.79%) | 2.43 (−11.52 to 16.38) |
Abbreviations: ER, estrogen receptor. PR, progesterone receptor. AC, doxorubicin and cyclophosphamide. GnRH, gonadotropin-releasing hormone.
Source: Prepared by the authors of this study.