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. 2021 Oct 14;25(3):204–212. doi: 10.5114/wo.2021.110010

Table 5.

Kaplan-Meier analysis of relapse-free survival

Characteristics Relapse-free time [weeks] 5-year relapse-free rate [%]
Mean SD 95% CI p-value
GPER-1 0.637
Positive (≥ 4) 268.2 9.1 250.3–286.1 77.8
Negative (< 4) 260.8 9.3 242.6–278.9 75.8
BMI [kg/m2] 0.157
Obese (BMI ≥ 30) 251.6 13.5 225.2–278.0 66.9
Non-obese (BMI < 30) 269.0 7.5 254.4–283.7 80.7
Tumour size 0.279
≤ 2 cm 269.0 7.6 254.1–283.9 81.8
> 2 cm 259.4 10.5 238.9–280.0 73.2
Lymph node status 0.001
pN0, pN1 275.9 6.3 263.5–288.2 45.2
pN2, pN3 196.5 19.8 157.8–235.3 82.1
Grading 0.145
G1 232.8 24.7 184.3–281.3 55.1
G2 273.1 8.1 257.2–289.0 82.9
G3 251.4 12.7 226.4–276.4 69.0
Operations 0.028
Ablatio 270.5 6.7 257.5–283.6 80.8
Others 212.9 20.4 172.9–252.9 40.5
Axilla
Dissection (y/n) 235.0 15.6 204.4–265.7 0.004§ 58.4
SNB (y/n) 273.2 7.4 259.0–287.4 0.028§ 83.2
Dissection + SNB (y/n) 286.4 13.0 260.9–311.9 0.233§ 90.9
Radiotherapy 0.549
Yes 259.8 9.5 240.9–278.2 71.9
No 259.6 10.0 240.2–279.3 79.8

GPER-1 - G protein-coupled oestrogen receptor 1, BMI – body mass index, § – p-value was calculated vs. all other cases

Relapse-free survival in weeks and 5-year survival rate is given. P-value was caluclated using the log-rank test