PMID- 28340964 OWN - NLM STAT- MEDLINE DCOM- 20180214 LR - 20220408 IS - 1873-460X (Electronic) IS - 1056-8727 (Linking) VI - 31 IP - 1 DP - 2017 Jan TI - Higher parity is associated with increased risk of Type 2 diabetes mellitus in women: A linear dose-response meta-analysis of cohort studies. PG - 58-66 LID - S1056-8727(16)30669-9 [pii] LID - 10.1016/j.jdiacomp.2016.10.005 [doi] AB - AIM: The goal of this study is to investigate the association between higher parity and the risk of occurrence of type 2 diabetes mellitus (T2DM) in women and to quantify the potential dose-response relation. METHODS: We searched MEDLINE, and EMBASE electronic databases for related cohort studies up to March 10th, 2016. Summary rate ratios (RRs) and 95% confidence intervals (CIs) for T2DM with at least 3 categories of exposure were eligible. A random-effects dose-response analysis procedure was used to study the relations between them. RESULTS: After screening a total of 13,647 published studies, only 7 cohort studies (9,394 incident cases and 286,840 female participants) were found to be eligible for this meta-analysis. In the category analysis, the pooled RR for the highest number of parity vs. the lowest one was 1.42 (95% CI: 1.17-1.72, I(2)=71.5%, P(heterogeneity)=0.002, Power=0.99). In the dose-response analysis, a noticeable linear dose-risk relation was found between parity and T2DM (P(for nonlinearity test)=0.942). For every live birth increase in parity, the combined RR was 1.06 (95% CI: 1.02-1.09, I(2)=84.3%, P(heterogeneity)=0.003, Power=0.99). Subgroup and sensitivity analyses yielded similar results. No publication bias was found in the results. CONCLUSION: This meta-analysis suggests that higher parity and the risk of T2DM show a linear relationship in women. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Guo, Peng AU - Guo P AD - Department of Hepatobiliary Surgery, Renmin Hospital, Hubei University of Medicine, Hubei 442000, China. Electronic address: guop_doc@163.com. FAU - Zhou, Quan AU - Zhou Q AD - Department of Science and Education, The First People's Hospital of Changde City, Hunan, 415003, China. FAU - Ren, Lei AU - Ren L AD - Department of Joint Surgery, The Third Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China. FAU - Chen, Yu AU - Chen Y AD - Department of Spinal Surgery, The Third Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China. FAU - Hui, Yue AU - Hui Y AD - Department of Intensive Care Unit, Taihe Hospital, Hubei University of Medicine, Hubei, 442000, China. Electronic address: dfhy520115@163.com. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review DEP - 20161008 PL - United States TA - J Diabetes Complications JT - Journal of diabetes and its complications JID - 9204583 SB - IM MH - Adult MH - Cohort Studies MH - Diabetes Mellitus, Type 2/*epidemiology/*etiology MH - Female MH - Humans MH - Middle Aged MH - Parity/*physiology MH - Pregnancy MH - Reproductive History MH - Risk Factors OTO - NOTNLM OT - Cohort studies OT - Dose-response OT - Meta-analysis OT - Parity OT - Type 2 diabetes mellitus EDAT- 2017/03/28 06:00 MHDA- 2018/02/15 06:00 CRDT- 2017/03/26 06:00 PHST- 2016/05/11 00:00 [received] PHST- 2016/08/13 00:00 [revised] PHST- 2016/10/04 00:00 [accepted] PHST- 2017/03/26 06:00 [entrez] PHST- 2017/03/28 06:00 [pubmed] PHST- 2018/02/15 06:00 [medline] AID - S1056-8727(16)30669-9 [pii] AID - 10.1016/j.jdiacomp.2016.10.005 [doi] PST - ppublish SO - J Diabetes Complications. 2017 Jan;31(1):58-66. doi: 10.1016/j.jdiacomp.2016.10.005. Epub 2016 Oct 8.