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ABO blood type affects female fertility and ovarian reserve.

the verdict
CONTESTED PARTIAL
Recorded sources
2 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that ABO blood type affects female fertility and ovarian reserve?

Partly. One retrospective cohort of Chinese Han infertile women found no significant correlation between ABO blood group and ovarian reserve, while a study of IVF/ICSI outcomes reported higher pregnancy and live-birth rates with the AB and AB parental blood-type combination, and a 1995 Brazilian sample found type B mothers had more offspring. These partial findings point in different directions and cover only specific populations and fertility contexts, not the general claim.

Verdict: CONTESTED PARTIAL · 2 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Frontiers | Parent Joint AB Blood Group Is Associated With Clinical Outcomes of in vitro Fertilization and Intracytoplasmic Sperm Injection Treatment in Chinese Women
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Frontiers | Parent Joint AB Blood Group Is Associated With Clinical Outcomes of in vitro Fertilization and Intracytoplasmic Sperm Injection Treatment in Chinese Women. (n.d.). frontiersin.org. https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2022.813781/full

Evidence against · 1
Association of ABO blood groups with ovarian reserve: a retrospective cohort study in Chinese Han women younger than 40 years with infertility -
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Association of ABO blood groups with ovarian reserve: a retrospective cohort study in Chinese Han women younger than 40 years with infertility - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1186/s13048-022-01075-0

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More for · 1
Do type B women have more offspring?: An instance of asymmetrical selection at the ABO blood group locus
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Do type B women have more offspring?: An instance of asymmetrical selection at the ABO blood group locus. (n.d.). cir.nii.ac.jp. https://doi.org/10.1002/ajhb.1310070106

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