Correction

This article refers to:

Rheumatoid arthritis: A single-center Egyptian experience

Article title: Rheumatoid arthritis: A single-center Egyptian experience

Authors: B. R Sakr, M. M Elfishawi, M. H ElArousy, A. K Hatw, A. N AbdulKarim, A. B Tammam, A. N Kotp, M. E Hamed, I. E Genedy, E. D. El Desouky, and Z. O Nawito

Journal: IIMM: Immunological Investigations

Bibliometrics: Volume 47, Number 03, pages 293–302

DOI: https://doi.org/10.1080/08820139.2018.1425700

When the article was first published Table 2 was not present though it was cited in the text.

Table 2 Disease characteristics of the studied RA population.

Disease characteristics	Frequency No (%)
Types of joint involvement at disease onset Small joints Large joints Small and large joints	290 (9%) 257 (8%) 2672 (83%)
No of affected joints at disease onset Oligoarticular Polyarticular Monoarticular	603 (18.7%) 2585 (80.3%) 31 (1%)
Extra articular manifestations Subcutaneous nodules Interstitial lung disease Skin vasculitis Sjogren’s syndrome	458 (14.2%) 27 (0.8%) 10 (0.3%) 339 (10.5%)
Hand bony erosions	665(20.6%)
Rheumatoid Factor Positive Negative Missing	1679 (52%) 913 (28.4%) 627 (19.6%)
ACPA Positive Negative Missing	149(4.6%) 120 (3.7%) 2950 (91.7%)

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