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A comparison of response rate and time according to the survey methods used: A randomized controlled trial

Authors
 Sang-Wook Yi  ;  Jae Seok Hong  ;  Heechoul Ohrr  ;  Jee Jeon Yi 
Citation
 EUROPEAN JOURNAL OF EPIDEMIOLOGY, Vol.20(2) : 131-135, 2005 
Journal Title
 EUROPEAN JOURNAL OF EPIDEMIOLOGY 
ISSN
 0393-2990 
Issue Date
2005
MeSH
Data Collection/methods* ; Data Interpretation, Statistical ; Humans ; Male ; Middle Aged ; Odds Ratio ; Postal Service* ; Surveys and Questionnaires ; Time Factors ; United States ; United States Department of Veterans Affairs ; Veterans*
Keywords
15792278
Abstract
The purpose of this study was to evaluate the effects of recorded and standard deliveries, and stamped and franked return envelopes in a postal survey of Korean–Vietnam veterans. Nine hundred veterans were randomly divided into four subgroups. A randomized controlled trial was conducted for two mailing strategies. The 52 study subjects to whom mail was undeliverable and 36 additional study subjects found not to be residing at the listed addresses were excluded from the study. The 699 (86%) surveys were returned within 39 business days after the first mailing. The response rate for the recorded delivery (88%) was significantly higher than that of the standard delivery (82%)(p = 0.03), and the response rate of the stamped return envelops (88%) was higher than that of the franked return envelops (85%)(p = 0.27). The replies for the recorded and standard deliveries arrived an average of 10.2 and 9.9 business days, respectively, after the first mailing (p = 0.60). The average times of the responses for the stamped and franked return envelopes were 9.8 and 10.4 business days, respectively (p = 0.25). Recorded deliveries significantly increased the response rate compared to standard deliveries, and stamped return envelops slightly increased the response rate a little compared to franked return envelops. The timing of response of recorded deliveries was similar to that of standard deliveries but the volume of response of recorded deliveries was higher than that of standard deliveries.
Full Text
http://link.springer.com/article/10.1007%2Fs10654-004-5098-6
DOI
OAK-2005-02946
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Ohrr, Hee Choul(오희철)
Yi, Jee Jeon(이지전)
Hong, Jae Seok(홍재석)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/147476
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