학술논문
Challenges and benefits of integrating diverse sampling strategies in the observation of cardiovascular risk factors (ORISCAV-LUX 2) study
Document Type
article
Author
Ala’a Alkerwi; Jessica Pastore; Nicolas Sauvageot; Gwenaëlle Le Coroller; Valéry Bocquet; Marylène d’Incau; Gloria Aguayo; Brice Appenzeller; Dritan Bejko; Torsten Bohn; Laurent Malisoux; Sophie Couffignal; Stephanie Noppe; Charles Delagardelle; Jean Beissel; Anna Chioti; Saverio Stranges; Jean-Claude Schmit
Source
BMC Medical Research Methodology, Vol 19, Iss 1, Pp 1-10 (2019)
Subject
Language
English
ISSN
1471-2288
Abstract
Abstract Background It is challenging to manage data collection as planned and creation of opportunities to adapt during the course of enrolment may be needed. This paper aims to summarize the different sampling strategies adopted in the second wave of Observation of Cardiovascular Risk Factors (ORISCAV-LUX, 2016–17), with a focus on population coverage and sample representativeness. Methods Data from the first nationwide cross-sectional, population-based ORISCAV-LUX survey, 2007–08 and from the newly complementary sample recruited via different pathways, nine years later were analysed. First, we compare the socio-demographic characteristics and health profiles between baseline participants and non-participants to the second wave. Then, we describe the distribution of subjects across different strategy-specific samples and performed a comparison of the overall ORISCAV-LUX2 sample to the national population according to stratification criteria. Results For the baseline sample (1209 subjects), the participants (660) were younger than the non-participants (549), with a significant difference in average ages (44 vs 45.8 years; P = 0.019). There was a significant difference in terms of education level (P