Morning sickness: a mechanism for protecting mother and embryo

Quarterly Review of Biology Vol/Iss. 75(2) University of Chicago Press Published In Pages: 113-148
By Flaxman, Samuel M., Sherman, Paul W.


Societies in which morning sickness was not observed will be significantly less likely to have meat as a staple and slightly less likely to have rice as a staple than societies in which morning sickness was observed (129).


Test NameSupportSignificanceCoefficientTail
G-testSupportedP < 0.05 (meat as a staple); 0.05 < P < 0.1 (rice as a staple)UNKNOWNUNKNOWN


Variable NameVariable Type OCM Term(s)
Morning SicknessDependentPregnancy
Meat as Dietary StapleIndependentDiet
Rice as Dietary StapleIndependentDiet