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Table 2 Distribution of clinical and histopathological characteristics of breast cancer patients

From: Hypoxia inducible factor 1α gene (HIF-1α) splice variants: potential prognostic biomarkers in breast cancer

Parameter No. of patients No. of patients with metastasis
Age, years:   
≤ 50 21 8
> 50 30 13
Positive lymph node:   
0 25 6
1 to 3 11 9
4 to 10 4 3
> 10 7 3
Pathological tumour size, mm:   
≤ 10 3 1
11 to 20 25 8
21 to 50 23 12
> 50 2 1
Tumour grade:   
1 9 1
2 26 13
3 17 8
Histological type:   
Tubular 41 18
Lobular 12 4
Peritumoural vascular invasion:   
Absent 12 4
Present 40 18
OR status:   
OR positive 32 10
OR negative 16 10
PgR status:   
PgR positive 26 6
PgR negative 24 16
  1. Because of missing data, the numbers do not always add up to 53.
  2. OR = oestrogen receptor; PgR = progesterone receptor.