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Table 2 Clinical and pathological characteristics of the study population

From: The prevalence of estrogen receptor-negative breast cancer in Ethiopia

Parameter

ER available: N (column%)

ER not available: N (column%)

Total population n = 1213

352 (100.0)

861 (100.0)

Place of origin

  

 Addis Ababa

183 (52.0)

405 (47.0)

 Non-Addis Ababa

140 (39.8)

375 (43.6)

 unknown

29 (8.2)

81 (9.4)

Age (years)

  

 <30

56 (15.9)

106 (12.3)

 30–39

114 (32.4)

331 (38.4)

 40–49

83 (23.6)

231 (26.8)

 50–59

53 (15.1)

139 (16.1)

 ≥60

46 (13.1)

54 (6.3)

Menopausal status

  

 Premenopausal

145 (41.2)

345 (40.1)

 Postmenopausal

155 (44.0)

374 (43.4)

 Unknown status

52 (14.8)

142 (16.5)

Stage (UICC)

  

 1 and 2

35 (9.0)

153 (17.8)

 3

168 (47.7)

288 (33.4)

 4

71 (20.2)

72 (8.4)

 Unknown

78 (22.2)

348 (40.4)

Distant Metastasis

  

 No (M0)

236 (67.0)

666 (77.4)

 Yes (M1)

116 (33.0)

195 (22.6)

Histology

  

 Ductal

265 (75.3)

681 (79.1)

 Lobular

20 (5.7)

39 (4.5)

 other/unspecified

67 (19.0)

141 (16.4)

Patho-specimen for diagnosis

  

 FNAC+

127 (36.1)

27 (3.1)

 Tumour specimen

193 (54.8)

659 (77.0)

 unknown

32 (9.1)

174 (20.2)

Basis of hormone receptor diagnosis

  

 Primary operation

174 (49.4)

Not applicable

 Recurrence

106 (30.1)

 

 unknown

72 (20.5)

 
  1. +FNAC – fine needle aspiration cytology.