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. Author manuscript; available in PMC: 2021 Dec 29.
Published in final edited form as: Am J Undergrad Res. 2021 Dec;18(3):15–23. doi: 10.33697/ajur.2021.048

Table 2.

Median and standard deviation (SD) of age at diagnosis of breast cancer and frequencies of grade, stage, ER status and PR status for SA and NHW breast cancer patients receiving STRM and PNUM surgery.

STRM Surgery PNUM Surgery
Variable NHW
(N = 159,533)
SA
(N = 1,956)
NHW
(N = 269,497)
SA
(N = 2,634)
Age Mean: 59.03 SD: 14.26 Mean: 52.63 SD:13.53 Mean: 62.36 SD: 12.99 Mean: 55.17 SD: 12.74
Grade
Grade I 23,944 182 66,523 455
Grade II 65,713 744 114,995 1,036
Grade III 62,959 929 76,800 1004
Grade IV 1,513 17 1,684 16
Stage
Localized 82,152 930 195,244 1,708
Regional 72,428 961 59,763 722
Distant 4,626 60 12,608 174
ER Status
Positive 124,042 1,445 226,104 2,100
Negative 35,491 511 43,393 534
PR Status
Positive 106,566 1,255 198,461 1,870
Negative 52,967 701 71,036 764