Constructvaliditydataandprevalenceestimatesfromother researchlendcredencetoourcumulativerateestimate.Those positive for MDD were more likely to receive treatment and reportedpoorerqualityoflifeandgreaterroleimpairmentcom- paredwiththenondepressedgroup.Ourrateestimateiscon- sistent with other studies that used diagnostic assessments, suchasthestudybyJorgeetal 3 thatreportedthat42%oftheir