Table 6: Prevalence of TPOAb and TgAb in RA patients.

Author
publication date
LocationStudy populationNumber of CasesDiagnosticFrequencyPrevalence %
criteria of RATPOAbTgAbTPOAbTgAb

Africa
 Assal et al. 2009 [73]EgyptF: 66.6% A: 26.830ACR 1987296.030.0
 El-Sherif et al. 2004 [74]EgyptN/A20N/AN/AN/A5.030.0
 Mousa et al. 2012 [57]EgyptF: 80% A: 36.3217ACR 1987221310.16.0
America
 Cárdenas et al. 2012*ColombiaF: 81.3% A: 51.92125–135**ACR 1987512637.820.8
 Rivero et al. 1974 [75]ArgentinaN/A50N/AN/A10N/A20.0
 Innocencio et al. 2004
 [76]
BrazilN/A25ACR 1987832.00
 Gonçalves et al. 2009 [77]BrazilF: 86% A: 50 ± 1072ACR 198711915.312.5
Asia
 Porkodi et al. 2004 [78]IndiaN/AN/AN/A21132.81.8
 Nakamura et al. 2008 [79]JapanF: 82.76% A: 61 ± 1429N/A9931.031.0
Europe
 Hijmans et al. 1961 [23] Europe#N/A86ARA 1959910.4
 Atzeni et al. 2008 [80]ItalyF: 81% A: 47 ± 1670ACR 1987261637.023.0
 Ruggeri et al. 2002 [81] Italy   N/A N/A  N/A N/A N/A1975–1982: 0
1990–1992: 12
1998-1999: 26
 Genth et al. 1978 [82]GermanyN/A105N/A15714.36.7
 Andonopoulos et al. 1996 [83]GreeceN/A101N/AN/AN/A12.9N/A
 Raterman and Nurmohamed
 2012 [84]
NLN/AN/AACR 1987N/AN/A15N/A
 Magnus et al. 1995 [85]NorwayN/A100N/AN/A§
 Przygodzka and
 Filipowicz-Sosnowska 2009 [70]
PolandF: 100% A: 56 ± 13100ACR 1987151215.012.0
 Buchanan 1965 [86]ScotlandF: 100%N/AN/AN/AN/AN/A24.4
 Yavasoglu et al. 2009 [87]TurkeyF: 82%82ARA 1959131015.912.3
 Silman et al. 1989 [88]UKN/AN/AN/AN/AN/Amales: 5 females: 15males: 5 females: 11
Middle East
  Al-Awadhi et al. 2008
 [89]
KuwaitF: 79.1% A: 38.3177ACR 19871266.73.4

N/A: Not available; F: Proportion of females; A: Age at time of assessment (standard deviation); NL: The Netherlands; UK: United Kingdom; USA: United States of America.
*Current series.
**See text for details.
#Location not stated. Collaboration among UK and NL.
§Compared to the prevalence in the normal population, patients with rheumatoid arthritis have a higher prevalence of both antibodies.
Prevalence assessed in three time points. Only valid for thyroid hormone antibodies (THAb).