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Increasing response to a postal survey of sedentary patients – a randomised controlled trial [ISRCTN45665423]
BACKGROUND: A systematic review identified a range of methods, which can influence response rates. However, analysis specific to a healthcare setting, and in particular, involving people expected to be poor responders, was missing, We examined the effect of pre-warning letters on response rates to a...
| Autores principales: | , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2004
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC534787/ https://www.ncbi.nlm.nih.gov/pubmed/15537429 http://dx.doi.org/10.1186/1472-6963-4-31 |