Table 1.

Prevalence studies on primary Sjögren’s syndrome in Europe according to the AECG criteria

Author	Publication year	Country	Population size	Criteria	Prevalence %
					(95 % CI)
Trontzas & Andrianakos [15]	2005	Greece	8740	AECG	0.15 (0.09–0.21)
Alamanos et al. [11]	2006	Greece	488,435	AECG	0.09 (0.08–0.1)b
Kabasakal et al. [14]	2006	Turkey	831	AECG	0.72 (0.33–1.57)a
Birlik et al. [97]	2009	Turkey	2835	AECG	0.21 (0.03–0.29)
Anagnostopoulos et al. [98]	2010	Greece	3528	AECG	0.23 (0.22–0.75)
Göransson et al. [12•]	2011	Norway	852,342	AECG	0.05 (0.048–0.052)b
Maldini et al. [13•]	2014	France	1,172,482	AECG	0.01 (0.01–0.02)b

^aThe prevalence of pSS in the study of Kabasakal et al. was based on a female population only

^bPopulation-based studies conducted on a large background population