Table 2

Characteristics of women with breast cancers having immunohistochemistry studies performed and the proportional distributions of estrogen receptor (ER), progesterone receptor (PR) and HER2 according to ethnicity and residence
Characteristic Kurdish Sulaimaniyah

Kurdish

Not-Sulaimaniyah

Arab P value*
No. % No. % No. %
Age 0.56
20-49 155 58.5 76 65.0 30 60.0
50-59 67 25.3 25 21.4 10 20.0
≥60 43 16.2 16 13.7 10 20.0
Mean age ± SD 48.7 ± 11.1 46.4 ± 12.3 46.1 ± 11.7 0.12
Stage 0.30
1 24 9.1 12 10.3 1 2.0
2 86 32.5 33 28.2 17 34.0
3 63 23.8 32 27.4 20 40.0
4 18 6.8 7 6.0 3 6.0
Unknown 74 27.9 33 28.2 9 18.0
Tumor grade 0.86
I 26 9.1 12 10.3 6 12.0
II 116 43.8 57 48.7 22 44.0
III 100 33.7 41 35.0 20 40.0
Not assigned 23 27.9 7 6.0 2 4.0
ER, PR and HER2 0.98
ER + 194 73.2 89 76.1 39 78.0
PR + 170 64.2 80 68.4 36 72.0
HER2 + 54 20.4 29 24.8 11 22.0
ER/PR status 0.94
ER+/PR+ 163 61.5 76 65.0 35 70.0
ER+/PR- 31 11.7 13 11.1 4 8.0
ER-/PR+ 8 3.0 4 3.4 1 2.0
ER-/PR- 63 23.8 24 20.5 10 20.0
ER/HER2 status 0.71
ER+/HER2- 170 64.9 74 63.8 35 70.0
ER+/HER2+ 22 8.4 15 12.9 4 8.0
ER-/HER2- 38 14.5 13 11.2 4 8.0
ER-/HER2+ 32 12.2 14 12.1 7 14.0
Triple negative 33 12.6 10 8.6 4 8.0

* Comparing the distribution of patients in ethnicity/residence groups by age, tumor stage, tumor grade, and ER, PR, and HER2 status (X2 tests). The difference in ages of the ethnicity/residence groups were compared by Dunn’s analysis of variance on ranks.

Majid et al.

Majid et al. BMC Women's Health 2012 12:16   doi:10.1186/1472-6874-12-16

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