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

ABSTRACT: UNLABELLED: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 (? -0.70 kg [-3.6 to 2.1], p < 0.0001) and, therefore, BMI was lower for SR data (? -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. TRIAL REGISTRATION:NCT01530139 ( http://clinicaltrials.gov/show/NCT01530139 ).

SUBMITTER: Celis-Morales C

PROVIDER: S-EPMC4491331 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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

Celis-Morales Carlos C Livingstone Katherine M KM Woolhead Clara C Forster Hannah H O'Donovan Clare B CB Macready Anna L AL Fallaize Rosalind R Marsaux Cyril F M CFM Tsirigoti Lydia L Efstathopoulou Eirini E Moschonis George G Navas-Carretero Santiago S San-Cristobal Rodrigo R Kolossa Silvia S Klein Ulla L UL Hallmann Jacqueline J Godlewska Magdalena M Surwiłło Agnieszka A Drevon Christian A CA Bouwman Jildau J Grimaldi Keith K Parnell Laurence D LD Manios Yannis Y Traczyk Iwona I Gibney Eileen R ER Brennan Lorraine L Walsh Marianne C MC Lovegrove Julie A JA Martinez J Alfredo JA Daniel Hannelore H Saris Wim H M WHM Gibney Mike M Mathers John C JC

Genes & nutrition 20150705 5

<h4>Unlabelled</h4>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 intervent ...[more]

PMID: 26143178

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Project description:Background:Studies on aggregation of taste preferences among children and their siblings as well as their parents are scarce. We investigated the familial aggregation of taste preferences as well as the effect of sex, age, country of residence and education on variation in taste preferences in the pan- European I.Family cohort. Method:Thirteen thousand one hundred sixty-five participants from 7 European countries, comprising 2,230 boys <12 years, 2,110 girls <12 years, 1,682 boys ?12 years, 1,744 girls ?12 years and 5,388 parents, completed a Food and Beverage Preference Questionnaire containing 63 food items representing the taste modalities sweet, bitter, salty and fatty. We identified food items that represent the different taste qualities using factor analysis. On the basis of preference ratings for these food and drink items, a preference score for each taste was calculated for children and parents individually. Sibling and parent-child correlations for taste preference scores were calculated. The proportion of variance in children's preference scores that could be explained by their parents' preference scores and potential correlates including sex, age and parental educational was explored. Results:Mean taste preferences for sweet, salty and fatty decreased and for bitter increased with age. Taste preference scores correlated stronger between siblings than between children and parents. Children's salty preference scores could be better explained by country than by family members. Children's fatty preference scores could be better explained by family members than by country. Age explained 17% of the variance in sweet and 16% of the variance in fatty taste preference. Sex and education were not associated with taste preference scores. Conclusion:Taste preferences are correlated between siblings. Country could explain part of the variance of salty preference scores in children which points to a cultural influence on salt preference. Further, age also explained a relevant proportion of variance in sweet and fatty preference scores.

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

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

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