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. 2014 Dec 10;14:350. doi: 10.1186/s12888-014-0350-4

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© Nicholl et al.; licensee BioMed Central. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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.

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Multinomial logistic regression model of the association between chronic pain and mood disorder. Plot of the relative risk ratio and 95% confidence intervals of the association between extent of chronic pain and major depressive disorder and bipolar disorder for a) multinomial logistic regression model 1, unadjusted analysis, and b) multinomial logistic regression model 4, fully adjusted analysis for demographic variables (age, sex, ethnicity, socioeconomic status), lifestyle factors (BMI, smoking status and frequency of alcohol consumption), and number of long-term conditions.