Priority 8 from the Miscarriage PSP

UNCERTAINTY: What preconception tests or interventions prevent miscarriage? (e.g vitamin supplements, folic acid, Dehydroepiandrosterone (DHEA), co-enzyme Q-10 or bariatric surgery)? (JLA PSP Priority 8)
Overall ranking	8
JLA question ID	0053/8
Explanatory note	Examples of original survey submissions: Can taking vitamins reduce miscarriage?; Is bariatric surgery effective in preventing miscarriage?; What preconception tests would help reduce miscarriage?; What preconception tests would help reduce miscarriage?
Evidence	Balogun OO, da Silva Lopes K, Ota E, Takemoto Y, Rumbold A, Takegata M, Mori R. Vitamin supplementation for preventing miscarriage. Cochrane Database of Systematic Reviews 2016, Issue 5. Art. No.: CD004073. DOI: 10.1002/14651858.CD004073.pub4. Jefferys AE, Siassakos D, Draycott T, Akande VA, Fox R. Deflation of gastric band balloon in pregnancy for improving outcomes. Cochrane Database of Systematic Reviews 2013, Issue 4. Art. No.: CD010048. DOI: 10.1002/14651858.CD010048.pub2. Opray N, Grivell RM, Deussen AR, Dodd JM. Directed preconception health programs and interventions for improving pregnancy outcomes for women who are overweight or obese. Cochrane Database of Systematic Reviews 2015, Issue 7. Art. No.: CD010932. DOI: 10.1002/14651858.CD010932.pub2.
Health Research Classification System category	Reproduction

Extra information provided by this PSP
Submitted by	3 professionals ~ 16 women

PSP information
PSP unique ID	0053
PSP name	Miscarriage
Total number of uncertainties identified by this PSP.	58 (To see a full list of all uncertainties identified, please see the detailed spreadsheet held on the JLA website)
Date of priority setting workshop	14 October 2016