Heterogeneity of Zika virus exposure and outcome ascertainment across cohorts of pregnant women, their infants and their children: a metadata survey
ObjectivesTo support the Zika virus (ZIKV) Individual Participant Data (IPD) Consortium's efforts to harmonise and analyse IPD from ZIKV-related prospective cohort studies and surveillance-based studies of pregnant women and their infants and children; we developed and disseminated a metadata s...
Gespeichert in:
| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
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22 November 2022
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| In: |
BMJ open
Year: 2022, Jahrgang: 12, Heft: 11, Pages: 1-14 |
| ISSN: | 2044-6055 |
| DOI: | 10.1136/bmjopen-2022-064362 |
| Online-Zugang: | Resolving-System, kostenfrei, Volltext: https://doi.org/10.1136/bmjopen-2022-064362 Verlag, kostenfrei, Volltext: https://bmjopen.bmj.com/content/12/11/e064362 
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| Verfasserangaben: | Mabel Carabali, Lauren Maxwell, Brooke Levis, Priya Shreedhar |
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| 520 | |a ObjectivesTo support the Zika virus (ZIKV) Individual Participant Data (IPD) Consortium's efforts to harmonise and analyse IPD from ZIKV-related prospective cohort studies and surveillance-based studies of pregnant women and their infants and children; we developed and disseminated a metadata survey among ZIKV-IPD Meta-Analysis (MA) study participants to identify and provide a comprehensive overview of study-level heterogeneity in exposure, outcome and covariate ascertainment and definitions. SettingCohort and surveillance studies that measured ZIKV infection during pregnancy or at birth and measured fetal, infant, or child outcomes were identified through a systematic search and consultations with ZIKV researchers and Ministries of Health from 20 countries or territories. ParticipantsFifty-four cohort or active surveillance studies shared deidentified data for the IPD-MA and completed the metadata survey, representing 33061women (11020 with ZIKV) and 18281 children. Primary and secondary outcome measuresStudy-level heterogeneity in exposure, outcome and covariate ascertainment and definitions. ResultsMedian study sample size was 268 (IQR=100, 698). Inclusion criteria, follow-up procedures and exposure and outcome ascertainment were highly heterogenous, differing meaningfully across regions and multisite studies. Enrolment duration and follow-up for children after birth varied before and after the declaration of the Public Health Emergency of International Concern (PHEIC) and according to the type of funding received. ConclusionThis work highlights the logistic and statistical challenges that must be addressed to account for the multiple sources of within-study and between-study heterogeneity when conducting IPD-MAs of data collected in the research response to emergent pathogens like ZIKV. | ||
| 650 | 4 | |a Epidemiology | |
| 650 | 4 | |a infection | |
| 650 | 4 | |a infectious diseases | |
| 650 | 4 | |a Public health | |
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| 700 | 1 | |a Levis, Brooke |e VerfasserIn |4 aut | |
| 700 | 1 | |a Shreedhar, Priya |e VerfasserIn |0 (DE-588)1286024153 |0 (DE-627)1842077902 |4 aut | |
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