Factors associated with recruitment, surveillance participation, and retention in an observational study of pregnant women and influenza
Abstract Background This report describes the results of recruitment efforts and the subsequent participation of pregnant women in study activities in a 2010–2012 observational study focused on influenza illness and vaccination in California and Oregon, USA. Methods Socio-demographic and health char...
Main Authors: | , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2019-05-01
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Series: | BMC Pregnancy and Childbirth |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12884-019-2280-0 |