A recent study, Jensen et al 2013 [1], sought to differentiate the effects of exposure to maternal depression from the effects of antidepressants in their contribution to a reduction of Apgar scores. They collected data regarding diagnosis of depression, use of antidepressants in pregnancy, and Apgar scores at 5 minutes from all pregnancies in Denmark from 1996 to 2006 using national databases. This gave information on 668,144 births.