A subsequent study, in 1989, found "No difference between [68] women with gestational diabetes and 50 non-diabetic pregnant controls, matched for gestational age, were found on the Profile of Mood States..." BUT the part that is hidden in that article is that a) they only looked at the Mood reponses in one interview, AND the women being studied had their blood glucose measurements taken ONLY weekly or, in the case of women on insulin, once daily. (I've written to one of the authors to be sure of this.) I'm wondering if the disruption to one's schedule caused by a 4x daily testing may be related to more stress, and whether the mood situation is influenced by when the mood profile is done in comparison to the date of diagnosis. (Also whether diagnosis at earlier gestational age is associated with poorer mood outcomes and higher stress.)
another study