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Appendix S1. Excluded studies.

Appendix S2. Risk of bias amongst included studies.

Appendix S3. Additional maternal and pregnancy characteristics.

Appendix S4. Additional study characteristics.

Appendix S5. Scatterplot of quality scores.

FilenameFormatSizeDescription
BJO_3451_sm_AppendixS1.pdf101KSupporting info item
BJO_3451_sm_AppendixS2.pdf170KSupporting info item
BJO_3451_sm_AppendixS3.pdf168KSupporting info item
BJO_3451_sm_AppendixS4.pdf158KSupporting info item
BJO_3451_sm_AppendixS5.pdf43KSupporting info item

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