Increasing response rates in telephone surveys a randomized trial

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Half were randomly allocated to receive an advance letter, whereas the remainder did not receive any advance communication. Response and cooperation rates were compared between the two groups. Additional file 2: 1. Additional file 3: K, docx Figure S1. Additional file 4: K, docx Figure S2. Acknowledgements Most thanks are due to the many women who responded and participated in the survey. Consent for publication Not applicable.

Competing interests The authors declare that they have no competing interests. References 1. National Research Council. Oxford: National Perinatal Epidemiology Unit; Accessed 2 May Redshaw M, Heikkila K. Redshaw M, Henderson J.

Infant feeding survey health and social care information Centre; Care Quality Commission. CQC; Accessed 6 February Galea S, Tracy M. Participation rates in epidemiologic studies. Ann Epidemiol. Methods to increase response to postal and electronic questionnaires.

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Increasing response rates in postal surveys while controlling costs: an experimental investigation. Social Research Practice. Office for National Statistics. Accessed 8 October Phone, mail, and mixed-mode surveys: the tailored design method. Hoboken, New Jersey: Wiley; Best practices for survey research reports: a synopsis for authors and reviewers. Am J Pharm Educ. QR Code: A new opportunity for effective Mobile marketing. Journal of Mobile technologies, knowledge and society. Maximising response to postal questionnaires—a systematic review of randomised trials in health research.

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