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Telephone interviews can be used to collect follow-up data subsequent to no response to postal questionnaires in clinical trials.

Abstract:

OBJECTIVE: Follow-up data were collected using postal questionnaires and if participants did not respond, then data was collected using telephone interviews. The objectives of this study were to examine, for the two methods, how respondents differed in characteristics and whether the observed treatment difference varied. STUDY DESIGN AND SETTING: A large clinical trial of lower back pain. RESULTS: About 60% (98/163) of the nonresponders to postal questionnaire provided data by telephone, whi...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MSD, NDORMS
Journal:
Journal of clinical epidemiology
Volume:
65
Issue:
1
Pages:
90-99
Publication date:
2012-01-05
DOI:
EISSN:
1878-5921
ISSN:
0895-4356
URN:
uuid:d81641a3-30b8-455f-8290-7d97192c6483
Source identifiers:
170116
Local pid:
pubs:170116

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