Table 2.

Sensitivity analysis of pooled OR for DAPK methylation between NPC and controls

Study omitted	Year	Estimated OR (95% CI)
Kwong et al17	2002	17.44 (8.10, 37.54)
Liang et al39	2015	15.65 (7.52, 32.57)
Wong et al40	2002	17.50 (8.12, 37.69)
Zhang et al36	2012	16.39 (7.74, 34.71)
Nawaz et al27	2015	17.21 (10.20, 29.06)
Kong et al38	2006	17.25 (8.03, 37.08)
Fendri et al26	2009	15.94 (7.59, 33.45)
Challouf et al37	2012	20.49 (9.27, 45.297)
Chang et al35	2003	17.25 (8.03, 37.07)
Yang et al33	2015	19.64 (8.73, 44.18)
Wong et al32	2004	17.82 (8.25, 38.53)
Tian et al31	2013	19.75 (8.68, 44.92)
Tong et al34	2002	17.71 (8.19, 38.23)
Yang et al33	2015	20.40 (8.71, 47.79)
Chang et al35	2003	16.82 (7.79, 36.32)
Zhang et al36	2012	16.96 (7.93, 36.287)
Chang et al35	2003	15.92 (7.59, 33.36)

Abbreviations: OR, odds ratio; NPC, nasopharyngeal carcinoma.