. Author manuscript; available in PMC: 2017 Apr 1.

Published in final edited form as: J Acquir Immune Defic Syndr. 2016 Apr 1;71(4):444–451. doi: 10.1097/QAI.0000000000000856

Table 1.

Agreement of male circumcision status based on self-report and genital examination among men who have sex with men in China

By self-report	By genital examination		Total
By self-report	Circumcised	Uncircumcised	Total
Circumcised	74 (7.7%)	26 (2.7%)	100 (10.4%)
Uncircumcised	5 (0.5%)	859 (89.1%)	864 (89.6%)
Total	79 (8.2%)	885 (91.8%)	964 (100%)^*

The total sample size for the agreement testing is 964 (of 1155, 83.5%) due to missing data on self-reporting or genital examination of circumcision. No man was partially circumcised, a phenomenon more common with infant circumcision which was rare here.

Note: Using genital exam as the definitive method for assessing circumcision: Kappa=0.81; sensitivity=94%; specificity=97%; positive predictive value (PPV)=74%, negative predictive value (NPV)=99%.