Type

Journal Article

Authors

John C Mathers
Mike Gibney
Wim H M Saris
Hannelore Daniel
J Alfredo Martinez
Julie A Lovegrove
Marianne C Walsh
Lorraine Brennan
Eileen R Gibney
Iwona Traczyk
and 23 others

Subjects

Business

Topics
internet adults european identity obesity intervention studies genomic information seven countries self identity

How reliable is internet-based self-reported identity, socio-demographic and obesity measures in European adults? (2015)

Abstract In e-health intervention studies, there are concerns about the reliability of internet-based, self-reported (SR) data and about the potential for identity fraud. This study introduced and tested a novel procedure for assessing the validity of internet-based, SR identity and validated anthropometric and demographic data via measurements performed face-to-face in a validation study (VS). Participants (n = 140) from seven European countries, participating in the Food4Me intervention study which aimed to test the efficacy of personalised nutrition approaches delivered via the internet, were invited to take part in the VS. Participants visited a research centre in each country within 2 weeks of providing SR data via the internet. Participants received detailed instructions on how to perform each measurement. Individual's identity was checked visually and by repeated collection and analysis of buccal cell DNA for 33 genetic variants. Validation of identity using genomic information showed perfect concordance between SR and VS. Similar results were found for demographic data (age and sex verification). We observed strong intra-class correlation coefficients between SR and VS for anthropometric data (height 0.990, weight 0.994 and BMI 0.983). However, internet-based SR weight was under-reported (Δ -0.70 kg [-3.6 to 2.1], p < 0.0001) and, therefore, BMI was lower for SR data (Δ -0.29 kg m(-2) [-1.5 to 1.0], p < 0.0001). BMI classification was correct in 93 % of cases. We demonstrate the utility of genotype information for detection of possible identity fraud in e-health studies and confirm the reliability of internet-based, SR anthropometric and demographic data collected in the Food4Me study. NCT01530139 ( http://clinicaltrials.gov/show/NCT01530139 ).
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

John C Mathers, Mike Gibney, Wim H M Saris, Hannelore Daniel, J Alfredo Martinez, Julie A Lovegrove, Marianne C Walsh, Lorraine Brennan, Eileen R Gibney, Iwona Traczyk and 23 others

Experts in our system

1
John C Mathers
University College Dublin
Total Publications: 33
 
2
Mike Gibney
University College Dublin
Total Publications: 24
 
3
Wim H M Saris
University College Dublin
Total Publications: 39
 
4
Hannelore Daniel
University College Dublin
Total Publications: 33
 
5
J Alfredo Martinez
University College Dublin
Total Publications: 32
 
6
Julie A Lovegrove
University College Dublin
Total Publications: 46
 
7
Marianne C Walsh
University College Dublin
Total Publications: 51
 
8
Lorraine Brennan
University College Dublin
Total Publications: 166
 
9
Eileen R Gibney
University College Dublin
Total Publications: 98