Correction to: A matched case-control study of risk factors associated with multiple sclerosis in Kuwait

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CORRECTION

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Correction to: A matched case-control study of risk factors associated with multiple sclerosis in Kuwait Hadeel El-Muzaini1, Saeed Akhtar1* and Raed Alroughani2 Correction to: BMC Neurol 20, 64 (2020) https://doi.org/10.1186/s12883-020-01635-1 Following publication of the original article [1], the authors reported an error in Table 3. The correct version of the table can be seen below, wherein the added data are set in italic and that table footnote ‘Hepatitis B virus vaccine’ was removed. Author details 1 Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, University of Kuwait, PO Box 24923, 13110 Safat, Kuwait. 2Division of Neurology, Department of Medicine, Amiri Hospital, Arabian Gulf Street, 13041 Sharq, Kuwait.

Reference 1. El-Muzaini H, Akhtar S, Alroughani R. A matched case-control study of risk factors associated with multiple sclerosis in Kuwait. BMC Neurol. 2020;20:64 https://doi.org/10.1186/s12883-020-01635-1..

The original article can be found online at https://doi.org/10.1186/s12883020-01635-1. * Correspondence: [email protected] 1 Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, University of Kuwait, PO Box 24923, 13110 Safat, Kuwait Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

El-Muzaini et al. BMC Neurology

(2020) 20:306

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Table 3 Univariable conditional logistic regression analyses of risk factors associated with multiple sclerosis in a case-control study in Kuwait Variablesa

Matched OR

95% CI

p-value

Country of birth (Kuwait vs. abroad)

3.5

0.7–16.8

0.118

Education level at MS onset (< high school vs. high school or higher)

2.7

1.0–6.8

0.040

Marital status at MS onset (ever vs. never)

1.5

0.8–2.9

0.240

Household monthly income (KD) ≤ 600

1.0



601–1200

1.0

0.4–2.8

0.959

> 1200

0.8

0.3–2.1

0.703

BMI < 25

1.0



25–29.9

1.0

0.5–2.1

0.964

≥ 30

1.2

0.6–2.7

0.596

1.1

0.6–2.2

0.