| Titre : | A successful implementation of e-epidemiology : the Danish pregnancy planning study'Snart-Gravid. (2010) |
| Auteurs : | 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. |
| Type de document : | Article |
| Dans : | European journal of epidemiology (vol. 25, n° 5, 2010) |
| Pagination : | 297-304 |
| Langues: | Anglais |
| Mots-clés : | Epidémiologie ; Danemark ; Femme ; Homme ; Femme enceinte ; Grossesse ; Planification ; Internet ; Etude prospective ; Etude faisabilité ; Europe ; Recrutement |
| Résumé : | [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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