Serum levels of Hp, CEA, NSE and CYFRA21-1 are
summarized in Table 1. Serum level of Hp, CEA, NSE and
CYFRA21-1 in patients with lung cancer was significantly
higher than those with lung benign disease or control (p<
0.01). This difference was not detected between subjects
with lung benign disease and healthy controls (p>0.05).