International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2017
Meta-analysis of associations between maternal breast cancer and the risk of adverse delivery outcomes.
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Sun Chenyu, Ding Xiuxiu, Wu Yile, Yang Liqi
Аннотация
BACKGROUND: Research into the effects of breast cancer on delivery outcomes has generated inconsistent findings.
OBJECTIVES: To pool data from existing observational studies of the effect of breast cancer on preterm delivery and low delivery weight.
SEARCH STRATEGY: A systematic literature search of PubMed, Embase, and Web of Science databases using keywords including, "breast cancer" and "birth outcome" up to March 7, 2017, was performed.
SELECTION CRITERIA: Observational studies of the effect of breast cancer on delivery outcomes were included.
DATA COLLECTION AND ANALYSIS: Articles were reviewed independently by two authors and data were extracted. Risk ratios and 95% confidence intervals were calculated.
MAIN RESULTS: Preterm delivery data were included from seven studies including 6 687 579 patients and low delivery weight data were retrieved from five studies including 6 687 103 patients. Maternal breast cancer was associated with an increased risk of preterm delivery (pooled risk ratio 1.82, 95% confidence interval 1.44-2.30) and low delivery weight (pooled risk ratio 1.41, 95% confidence interval 1.15-1.74). No publication bias was detected in the meta-analysis.
CONCLUSIONS: The present meta-analysis demonstrated that maternal breast cancer was associated with increased risk of preterm delivery and low delivery weight.
OBJECTIVES: To pool data from existing observational studies of the effect of breast cancer on preterm delivery and low delivery weight.
SEARCH STRATEGY: A systematic literature search of PubMed, Embase, and Web of Science databases using keywords including, "breast cancer" and "birth outcome" up to March 7, 2017, was performed.
SELECTION CRITERIA: Observational studies of the effect of breast cancer on delivery outcomes were included.
DATA COLLECTION AND ANALYSIS: Articles were reviewed independently by two authors and data were extracted. Risk ratios and 95% confidence intervals were calculated.
MAIN RESULTS: Preterm delivery data were included from seven studies including 6 687 579 patients and low delivery weight data were retrieved from five studies including 6 687 103 patients. Maternal breast cancer was associated with an increased risk of preterm delivery (pooled risk ratio 1.82, 95% confidence interval 1.44-2.30) and low delivery weight (pooled risk ratio 1.41, 95% confidence interval 1.15-1.74). No publication bias was detected in the meta-analysis.
CONCLUSIONS: The present meta-analysis demonstrated that maternal breast cancer was associated with increased risk of preterm delivery and low delivery weight.