Systematic review and meta-analysis of the sero-epidemiological association between Epstein-Barr virus and rheumatoid arthritis

Table 1 Adapted Newcastle-Ottawa quality assessment

Study ID	S1	S2	S3	S4	C1	C2	E1a	E1b	E2	E3
Ferrell and colleagues²³	*	-	-	-	-	-	-	-	*	-
Lunemann and colleagues²⁴	*	-	*	-	*	-	-	-	*	-
Saal and colleagues²⁵	*	-	-	-	*	-	-	*	-	-
Yazbek and colleagues²⁶	*	*	-	*	*	*	-	-	*	-
Mouzavi-Jazi and colleagues²⁷	-	-	-	*	-	-	-	-	*	-
Blaschke and colleagues²⁸	*	-	*	*	*	*	-	-	*	-
Venables and colleagues 1981²⁹	*	-	-	-	-	-	-	*	*	-
Venables and colleagues 1985³⁰	*	-	-	*	-	-	-	-	*	-
Sculley and colleagues³¹	*	-	*	-	-	-	-	-	*	-
Shirodaria and colleagues³²	*	-	-	*	*	*	-	*	*	-
Silverman and colleagues³³	*	-	-	*	*	*	-	-	*	-
Ng and colleagues³⁴	*	-	-	-	-	-	-	-	-	-
Musiani and colleagues³⁵	*	-	-	*	*	*	-	*	*	-
Yao and colleagues³⁶	*	-	-	-	*	-	-	-	*	-
Philips and colleagues³⁷	*	-	*	*	-	-	-	-	*	-
Nakabayashi and colleagues³⁸	*	-	-	-	*	*	-	*	-	-
Us and colleagues¹⁸	*	-	*	*	*	-	-	-	*	*
Youinou and colleagues³⁹	*	-	*	-	-	-	-	*	*	-
Draborg and colleagues⁴⁰	*	-	-	-	-	-	-	*	*	-
Jorgensen and colleagues⁴¹	*	*	*	*	*	*	-	*	*	-
Zhang and colleagues 1999¹⁹	*	-	*	*	-	-	*	*	*	-
Zhang and colleagues 1993⁶	*	-	*	*	-	-	-	-	*	-
Davies and colleagues⁴²	*	-	-	-	*	-	-	-	*	-

Adapted Newcastle-Ottawa assessment scale. S1 objective case definition used, S2 cases consecutively recruited or obviously representative, S3 community controls, S4 controls specified as having no history of disease, C1 age-matched control, C2 controls matched for additional factor, E1a conducting analysis in a clinical laboratory (away from investigators), E1b explicit laboratory cutoffs for seropositivity mentioned, E2 same method of ascertainment for cases and controls, E3 missing data reported

ISSN: 1478-6362