Survey of laxative use by adults with self-defined constipation in South America and Asia: a comparison of six countries

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Funding Acknowledgements

Declaration of personal interests: A. Wald, S. Mueller-Lissner, M. A. Kamm and K. G. Mandel have served as speakers, consultants or as advisory board members for Boehringer Ingelheim GmbH. U. Hinkel is an employee of Boehringer Ingelheim, a company which manufactures laxatives. At the time of this study, C. Schuijt was also employed at Boehringer Ingelheim. We thank C Scarpignato for his support in this project. Authors'contributions: A. Wald, S. Mueller-Lissner, M. A. Kamm: Input to study design, data analysis, manuscript review. U. Hinkel: Data analysis, manuscript review. E. Richter: Statistical analysis. C. Schuijt: Design of study and protocol, data analysis, manuscript review. K.G. Mandel: Data analysis, manuscript writing and review. Declaration of funding interests: This study was funded in full by Boehringer Ingelheim GmbH.