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Multivariate meta-analysis of critical care meta-analyses: a meta-epidemiological study.
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- المؤلفون: Moran JL;Moran JL
- المصدر:
BMC medical research methodology [BMC Med Res Methodol] 2021 Jul 18; Vol. 21 (1), pp. 148. Date of Electronic Publication: 2021 Jul 18.
- نوع النشر :
Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't
- اللغة:
English
- معلومة اضافية
- المصدر:
Publisher: BioMed Central Country of Publication: England NLM ID: 100968545 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2288 (Electronic) Linking ISSN: 14712288 NLM ISO Abbreviation: BMC Med Res Methodol Subsets: MEDLINE
- بيانات النشر:
Original Publication: London : BioMed Central, [2001-
- الموضوع:
- نبذة مختصرة :
Background: Meta-analyses typically consider multiple outcomes and report univariate effect sizes considered as independent. Multivariate meta-analysis (MVMA) incorporates outcome correlation and synthesises direct evidence and related outcome estimates within a single analysis. In a series of meta-analyses from the critically ill literature, the current study contrasts multiple univariate effect estimates and their precision with those derived from MVMA.
Methods: A previous meta-epidemiological study was used to identify meta-analyses with either one or two secondary outcomes providing sufficient detail to structure bivariate or tri-variate MVMA, with mortality as primary outcome. Analysis was performed using a random effects model for both odds ratio (OR) and risk ratio (RR); borrowing of strength (BoS) between multivariate outcome estimates was reported. Estimate comparisons, β coefficients, standard errors (SE) and confidence interval (CI) width, univariate versus multivariate, were performed using Lin's concordance correlation coefficient (CCC).
Results: In bivariate meta-analyses, for OR (n = 49) and RR (n = 48), there was substantial concordance (≥ 0.69) between estimates; but this was less so for tri-variate meta-analyses for both OR (n = 25; ≥ 0.38) and RR (≥ -0.10; n = 22). A variable change in the multivariate precision of primary mortality outcome estimates compared with univariate was present for both bivariate and tri-variate meta-analyses and for metrics. For second outcomes, precision tended to decrease and CI width increase for bivariate meta-analyses, but was variable in the tri-variate. For third outcomes, precision increased and CI width decreased. In bivariate meta-analyses, OR coefficient significance reversal, univariate versus MVMA, occurred once for mortality and 6 cases for second outcomes. RR coefficient significance reversal occurred in 4 cases; 2 were discordant with OR. For tri-variate OR meta-analyses reversal of coefficient estimate significance occurred in two cases for mortality, nine cases for second and 7 cases for third outcomes. In RR meta-analyses significance reversals occurred for mortality in 2 cases, 6 cases for second and 3 cases for third; there were 7 discordances with OR. BoS was greater in trivariate MVMAs compared with bivariate and for OR versus RR.
Conclusions: MVMA would appear to be the preferred solution to multiple univariate analyses; parameter significance changes may occur. Analytic metric appears to be a determinant.
(© 2021. The Author(s).)
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- Contributed Indexing:
Keywords: Borrowing of strength; Critical care; Metric; Multivariate meta-analysis; Random effects
- الموضوع:
Date Created: 20210719 Date Completed: 20210809 Latest Revision: 20210809
- الموضوع:
20231215
- الرقم المعرف:
PMC8286437
- الرقم المعرف:
10.1186/s12874-021-01336-4
- الرقم المعرف:
34275460
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