. 2022 Dec 2;101(48):e32170. doi: 10.1097/MD.0000000000032170

Table 1.

General characteristics of patients and tumors by sentinel lymph node tumor (continuous numerical data).

	Sentinel lymph node involvement (n, %)	Mean ± SD	P
Age	Absent (251, 56.4%)	54.64 ± 11.99	.089
Age	Present (194, 43.6%)	52.50 ± 11.78	.089
Tumor size (cm)	Absent (251, 56.4%)	1.77 ± 1.00	<.001 ^*
Tumor size (cm)	Present (194, 43.6%)	2.41 ± 0.99	<.001 ^*
ER (%)	Absent (251, 56.4%)	52.78 ± 37.79	.370
ER (%)	Present (194, 43.6%)	50.31 ± 36.79	.370
PR (%)	Absent (251, 56.4%)	50.21 ± 38.11	.372
PR (%)	Present (194, 43.6%)	46.37 ± 37.71	.372
Ki-67 score (%)	Absent (116, 55.2%)	15.59 ± 20.06	.005 ^*
Ki-67 score (%)	Present (94, 44.8%)	19.98 ± 18.94	.005 ^*

ER = estrogen receptor, PR = progesterone receptor.

P < .05.