Table 1 Frequency of MMTV env sequence in relation to age of patient, grade of cancer and lymph node metastasis
Variables | frequency of MMTV env positivity in both tumor and normal tissue (n = 6/103) 5.8% | frequency of MMTV env positivity in tumor (n = 0/103) 0.0% | frequency of MMTV env positivity in normal tissue (n = 3/103) 2.9% | Total (n = 9/103) 8.7% |
|---|---|---|---|---|
Age (years) | ||||
 20–29 | 0 | 0 | 0 | 0 |
 30–39 | 1 (16.7%) | 0 | 1 (33.3%) | 2 (22.2%) |
 40–49 | 1 (16.7%) | 0 | 2 (66.7%) | 3 (33.3%) |
 50–59 | 3(50.0%) | 0 | 0 | 3 (33.3%) |
 60–69 | 0 | 0 | 0 | 0 |
 70–79 | 1 (16.7%) | 0 | 0 | 1 (11.1%) |
 P-value | 0.35a | -(None reported as the observed positivity is zero) | 0.50a | 0.45a |
Grade | ||||
 1 | 0 | 0 | 1 (33.3%) | 1 (11.1%) |
 2 | 2 (33.3%) | 0 | 2 (66.7%) | 4 (44.4%) |
 3 | 4 (66.7%) | 0 | 0 | 4 (44.4%) |
 p-value | 0.69a | – | 0.34a | 0.91a |
Presence of lymph nodes metastasis | ||||
 No | 6(100.0%) | 0 | 2 (66.7) | 8 (88.9%) |
 Yes | 0 | 0 | 1(33.3%) | 1 (11.1%) |
 p-value | 0.003a | – | 0.60a | 0.002a |