Titre :
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A successful implementation of e-epidemiology : the Danish pregnancy planning study'Snart-Gravid. (2010)
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Auteurs :
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Krista-F HUYBRECHTS ;
Tina CHRISTENSEN ;
Elizabeth-E HATCH ;
Ellen-M MIKKELSEN ;
Anders-H RIIS ;
ROTHMAN (Kenneth-J) : USA. Rti Health Solutions. Research Triangle Park. NC. ;
Henrik-Toft SORENSEN ;
WISE (Lauren-A) : USA. Slone Epidemiology Center. Boston University. Boston. MA.
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Type de document :
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Article
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Dans :
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European journal of epidemiology (vol. 25, n° 5, 2010)
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Pagination :
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297-304
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Langues:
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Anglais
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Mots-clés :
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Epidémiologie
;
Danemark
;
Femme
;
Homme
;
Femme enceinte
;
Grossesse
;
Planification
;
Internet
;
Etude prospective
;
Etude faisabilité
;
Europe
;
Recrutement
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Résumé :
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[BDSP. Notice produite par INIST-CNRS Dr8mR0x9. Diffusion soumise à autorisation]. The attraction of being able to use the internet for the recruitment of an epidemiologic cohort stems mainly from cost efficiency and convenience. The pregnancy planning study ('Snart-Gravid') - a prospective cohort study of Danish women planning a pregnancy-was conducted to evaluate the feasibility and cost efficiency of using internet-based recruitment and follow-up. Feasibility was assessed by examining patient accrual data over time, questionnaire-specific response rates and losses to follow-up. The relative cost efficiency was examined by comparing the study costs with those of an alternative non internet-based study approach. The target recruitment of 2,500 participants over 6 months was achieved using advertisements on a health-related website, supported by a coordinated media strategy at study initiation. Questionnaire cycle-specific response rates ranged from 87 to 90% over the 12-month follow-up. At 6 months, 87% of women had a known outcome or were still under follow-up ; at 12 months the figure was 82%. The study cost of $400,000 ($160 per enrolled subject) compared favorably with the estimated cost to conduct the same study using a conven-tional non-internet based approach ($322 per subject). The gain in efficiency with the internet-based approach appeared to be even more substantial with longer follow-up and larger study sizes. The successful conduct of this pilot study suggests that the internet may be a useful tool to recruit and follow subjects in prospective cohort studies.
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