showed a trendP =0.055
Our results also showed a trend towards elevated serum endostatin levels in the presence of deeper local invasion of the tumour (T classification) in univariate analysis ( Table 3 ; P =0.055) and significant correlation between higher serum endostatin levels and the invasion of the cancer tissue through the muscularis propria (T1-2 vs T3-4) in univariate ( Table 3 ; P =0.007) and multivariate analysis ( Table 7 ; P =0.032).