Autoimmune Thyroid Disease in Rheumatoid Arthritis: A Global Perspective

Table 5

Prevalence of AITD diagnosis in RA patients.

Author; publication date	Location	Study population	Diagnostic criteria of RA	Diagnostic criteria of AITD	Number of Cases	Frequency	Prevalence %
Africa
Mousa et al. 2012 [57]	Egypt	F: 80% A: 36.3	ACR 1987	Lab.	217	12	5.5
Benamour et al. 1992 [58]	Morocco	F: 87.4% A: 34	ARA	N/A	404	2	0.5
America
Cárdenas et al. 2012*	Colombia	F: 81.3% A: 51.92	ACR 1987	Lab.	800	78	9.8
Shiroky et al. 1993 [59]	Canada	F: 76. A: 58.7	ARA	Biopsy	119	7	4.2
Becker et al. 1963 [60]	USA	N/A	ARA	Histology	51	5	9.8
Linos et al. 1980 [61]	USA	F: 74.1% A: N/A	ARA	N/A	521	11	2.1
McCoy et al. 2012 [62]	USA	F: 69% A: 55.8 ± 15.7	ACR	Lab.	650	40	6.1
Europe
Hijmans et al. 1961 [23]	Europe^#	N/A	ARA 1959	N/A	86	7	8.1
Pongratz et al. 2000; [63]	Austria	F: 88.3% A: N/A	ARA	N/A	383	35	9.1
Caron et al. 1992 [64]	France	N/A	N/A	N/A	131	21	16
Herrmann et al. 1990 [65]	Germany	F: 86% A: N/A	N/A	US, Lab.	201	2	1
Biro et al. 2006 [66]	Hungary	N/A	ARA	Lab.	185	9	4.9
Somers et al. 2009 [67]	UK	F: 92% A: N/A	GPRD	GPRD	22888	337	1.5
Thomas et al. 1983; [68]	UK	F: N/A A: 52	N/A	NR	295	8	2.7
Chan et al. 2001 [69]	UK	F: 90% A: N/A	ARA	Lab.	64	2	3.0
Przygodzka and; Filipowicz-Sosnowska 2009 [70]	Poland	F: 100% A: 56 ± 13	ACR	Lab.	100	16	16.0
Lazúrová et al. 2009 [71]	Slovakia	F: N/A A: 52.2 ± 2	N/A	US, Lab.	68	19	27.0
Middle East
Zayeni et al. 2010 [72]	Iran	F: 87.1% A: 49.05	N/A	Lab. Clinical examination	224	39	17.4

^#Location not stated. Collaboration between the UK and The Netherlands.
*Current series.
N/A: Not available; F: Proportion of females; A: Age at time of assessment (standard deviation); ARA-ACR: RA diagnostic criteria 1987; UK: United Kingdom, US: Ultrasound, USA: United States of America, GPRD: General Practice Research Database; Lab.: Laboratory criteria.