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Pearson’s contingency coefficient analysis of the correlation between the levels of immunohistochemical staining of P. gingivalis and KGP in cancerous tissue of ESCC patients
| Antigens | KGP expression | R value | p value | |
|---|---|---|---|---|
| + | - | |||
| Pg (+) | 59 | 2 | 0.630 | <0.0001 |
| Pg (−) | 7 | 32 | ||
| Total | 66 | 34 | ||
*Data presented as the number of patients. P < 0.0001; Pearson’s contingency coefficient =0.630
