This difference, however, did not reach statistical significance ( P = 0.053, log-rank test).
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Human papillomavirus and p53 expression in cancer of unknown primary in the head and neck region in relation to clinical outcome.
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0.0530
0.1300
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failed to reach significanceP = 0.130
67 years), although this difference failed to reach significance ( P = 0.130), showing a similar trend as in OSCC, where patients with HPV-positive OSCC usually are younger than those with HPV-negative OSCC 9 , 16 .
There was a correlation between smoking history and p53 overexpression ( P = 0.021), while all other characteristics failed to reach statistical significance, although a tendency was demonstrated between being HPV DNA+ in the metastases and absent/intermediary-low p53 expression ( P = 0.118).