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Who does not participate in a follow-up postal study? a survey of infertile couples treated by in vitro fertilization
BACKGROUND: A good response rate has been considered as a proof of a study’s quality. Decreasing participation and its potential impact on the internal validity of the study are of growing interest. Our objective was to assess factors associated with contact and response to a postal survey in a epid...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3489673/ https://www.ncbi.nlm.nih.gov/pubmed/22824369 http://dx.doi.org/10.1186/1471-2288-12-104 |