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. 2013 Feb 28;13:39. doi: 10.1186/1471-230X-13-39

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Copyright ©2013 des Varannes et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mean SF-36v2 Physical and Mental Component summary scores by RESQ-7 Heartburn domain frequency (a) and severity (b) at 6 months’ follow-up. For both scores, 0 represents worse and 100 represents best health status. Norm values are means derived from the 1998 SF-36 Health Survey of the US general population. Frequency and severity of symptoms were based on the item within the domain with the highest frequency. The relationship between symptoms and SF-36v2 results is described at the 6-month assessment, since the number of patients in each symptom category was most evenly distributed at this time point.