Skip to main content

Table 1 Inter-observer reproducibility between two pathologists based on the new nasopharyngeal carcinoma (NPC) histopathologic classification, stratified by area of case origin

From: A new prognostic histopathologic classification of nasopharyngeal carcinoma

Case origin

Consistent (cases)

Inconsistent (cases)

Reproducibility (%)

Sun Yat-sen University Cancer Center (SYSUCC)

3067

325

90.3

Other hospitals in mainland China

582

53

91.7

Hong Kong, Taiwan, Singapore

535

77

87.4

Total

4187

455

90.2

  1. In all, 4642 out of the 7565 patients in the initial database were assessed for the initial calculation of reproducibility