Electronic health records have been held up as a way to improve medical care, but a new study suggests they are not necessarily making a difference in diabetes treatment. The study, of 42 physician practices in two U.S. states, found offices that used electronic records actually gave lower-quality diabetes care than those that stuck with old-fashioned paper records. On the bright side, diabetes management actually improved across all the practices over the course of the study period. But offices using electronic records lagged.