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dc.contributor.author
Woo Kinshella, Mai-Lei
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Sarr, Catherine
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Sandhu, Akshdeep
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Bone, Jeffrey N.
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Vidler, Marianne
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Moore, Sophie E.
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Elango, Rajavel
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Cormick, Gabriela
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Belizan, Jose
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Hofmeyr, G. Justus
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Magee, Laura A.
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von Dadelszen, Peter
dc.date.available
2023-10-04T15:24:11Z
dc.date.issued
2022-05
dc.identifier.citation
Woo Kinshella, Mai-Lei; Sarr, Catherine; Sandhu, Akshdeep; Bone, Jeffrey N.; Vidler, Marianne; et al.; Calcium for pre-eclampsia prevention: A systematic review and network meta-analysis to guide personalised antenatal care; Wiley Blackwell Publishing, Inc; BJOG - An International Journal of Obstetrics and Gynaecology; 129; 11; 5-2022; 1833-1843
dc.identifier.issn
1470-0328
dc.identifier.uri
http://hdl.handle.net/11336/214088
dc.description.abstract
Background: Calcium supplementation reduces the risk of pre-eclampsia, but questions remain about the dosage to prescribe and who would benefit most. Objectives: To evaluate the effectiveness of high (≥1 g/day) and low (<1 g/day) calcium dosing for pre-eclampsia prevention, according to baseline dietary calcium, pre-eclampsia risk and co-interventions, and intervention timing. Search strategy: CENTRAL, PubMed, Global Index Medicus and CINAHL, from inception to 2 February 2021, clinical trial registries, reference lists and expert input (CRD42018111239). Selection criteria: Randomised controlled trials of calcium supplementation for pre-eclampsia prevention, for women before or during pregnancy. Network meta-analysis (NMA) also included trials of different calcium doses. Data collection and analysis: Two independent reviewers extracted published data. The meta-analysis employed random-effects models and the NMA, a Bayesian random-effects model, to obtain direct and indirect effect estimates. Main results: The meta-analysis included 30 trials (N = 20 445 women), and the NMA to evaluate calcium dosage included 25 trials (N = 15 038). Calcium supplementation prevented pre-eclampsia similarly with a high dose (RR 0.49, 95% CI 0.36–0.66) or a low dose (RR 0.49, 95% CI 0.36–0.65). By NMA, high-dose (vs low-dose) calcium did not differ in effect (RR 0.79, 95% CI 0.43–1.40). Calcium was similarly effective regardless of baseline pre-eclampsia risk, vitamin D co-administration or timing of calcium initiation, but calcium was ineffective among women with adequate average baseline calcium intake. Conclusions: Low- and high-dose calcium supplementation are effective for pre-eclampsia prevention in women with low calcium intake. This has implications for population-level implementation where dietary calcium is low, and targeted implementation where average intake is adequate. Tweetable abstract: A network meta-analysis of 25 trials found that low-dose calcium supplementation (<1 g/day) is as effective as high-dose calcium supplementation (≥1 g/day) in halving the risk of pre-eclampsia when baseline calcium intake is low.
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application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
CALCIUM
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META-ANALYSIS
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NETWORK META-ANALYSIS
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PRE-ECLAMPSIA
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PREVENTION
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RANDOMISED CONTROLLED TRIALS
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Otras Ciencias de la Salud
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dc.subject.classification
Ciencias de la Salud
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CIENCIAS MÉDICAS Y DE LA SALUD
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dc.title
Calcium for pre-eclampsia prevention: A systematic review and network meta-analysis to guide personalised antenatal care
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-10T11:45:48Z
dc.journal.volume
129
dc.journal.number
11
dc.journal.pagination
1833-1843
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Woo Kinshella, Mai-Lei. University of British Columbia; Canadá
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Fil: Sarr, Catherine. Kings College London (kcl);
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Fil: Sandhu, Akshdeep. University of British Columbia; Canadá
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Fil: Bone, Jeffrey N.. University of British Columbia; Canadá
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Fil: Vidler, Marianne. University of British Columbia; Canadá
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Fil: Moore, Sophie E.. Kings College London (kcl);
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Fil: Elango, Rajavel. University of British Columbia; Canadá
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Fil: Cormick, Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Epidemiología y Salud Pública. Instituto de Efectividad Clínica y Sanitaria. Centro de Investigaciones en Epidemiología y Salud Pública; Argentina
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Fil: Belizan, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Epidemiología y Salud Pública. Instituto de Efectividad Clínica y Sanitaria. Centro de Investigaciones en Epidemiología y Salud Pública; Argentina
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Fil: Hofmeyr, G. Justus. University of the Witwatersrand; Sudáfrica. University of Walter Sisulu; Sudáfrica. University of Fort Hare; Sudáfrica. University of Botswana; Botsuana
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Fil: Magee, Laura A.. University of British Columbia; Canadá. Kings College London (kcl);
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Fil: von Dadelszen, Peter. University of British Columbia; Canadá. Kings College London (kcl);
dc.journal.title
BJOG - An International Journal of Obstetrics and Gynaecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://obgyn.onlinelibrary.wiley.com/doi/10.1111/1471-0528.17222
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/1471-0528.17222
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