biostudies-literatureGerritsen SESeventh Framework Programmee053373https://www.ebi.ac.uk/biostudies/studies/S-EPMC8679118biostudies-literatureUnknown11(12)<h4>Purpose</h4>The presence of distinct child and adolescent mental health services (CAMHS) and adult mental health services (AMHS) impacts continuity of mental health treatment for young people. However, we do not know the extent of discontinuity of care in Europe nor the effects of discontinuity on the mental health of young people. Current research is limited, as the majority of existing studies are retrospective, based on small samples or used non-standardised information from medical records. The MILESTONE prospective cohort study aims to examine associations between service use, mental health and other outcomes over 24 months, using information from self, parent and clinician reports.<h4>Participants</h4>Seven hundred sixty-three young people from 39 CAMHS in 8 European countries, tBMJ openCohort profile: demographic and clinical characteristics of the MILESTONE longitudinal cohort of young people approaching the upper age limit of their child mental health care service in Europe.PMC8679118602442Davidovic NFegert JMSandhu THeaney NDineen PBentzel CVCarra GGheza EMorini GRiva EDanckaerts Mvan Bodegom LSVerhulst FCIngravallo NPresicci ASchepker RWilliams BZanetti EPurper-Ouakil DPrigent CO'Hara LRoekens AVicari SCharvin IColeman PRinaldi FLippens CVaruzza Cde Roeck VStreet CBergamo FStoppa PMastroianni MWalker LNacinovich RTah PCarenini MConti PSartor ANeri FMaras AMilestone consortiumVarvara Pvan Amelsvoort TAMJButtiglione MCostanzo RDa Fonseca DMadan JStarace FManenti LZabarella MLevi FMSlowik MLynch FPemmaraju VVannicola CSperanza MOperto FPetruzzelli MGSingh SPLida-Pulik HDe Girolamo GBertani ADieleman GCSagar-Ouriaghli IDaffern CMiller SSpadone MASchandrin AFerrari AKelly CFerrari CInvernizzi RCanaway ATuffrey ASakar VNikolova PJardri RFarmer ABalaudo MGerritsen SENelis EKillilea MPepermans AOverbeek MMHendrickx GMonzani EPanaro VSignorini GRonzini PWilson AMacchi FAdams LKirwan JTrabucchi GTuomainen HDam AVMartinelli OMartinelli PAllibrio GGoglia GGriffin JRusset FPaul MColonna AMutafov TChianura KMargari LMcDonald JVentura PGatherer CErmans JPMargari FNegrinotti CWells PSantosh PJLievesley KStagi PRivolta LArmando MSingh JTanase EParenti ASiviero MMcNicholas FZamboni ACammarano MWest DVNoterdaeme MFerrari SAslan SStagni PTremmery SGrandetto MSchulze UMEKeeley HNossa MBraamse KFranic TVanni FMenghini DWolke DToselli CSalvetti SKolozsvari AKovac VDodig-Curkovic KTubito MBerriman JMaurice VRethore CBButtle SBreuninger USmyth CTansini LCantini FHumbertclaude VMcFadden LLiew ABonnet-Brilhault FVicini SBoon AGiacomo AAppleton RHolmes KRogers BCataldo MGGutschoven HVSaam MCGatta MBaccanelli NCappellari CMigone MGalea GHealy EPastore AScocco PConese PFiori FKlockaerts CfalseCohort profile: demographic and clinical characteristics of the MILESTONE longitudinal cohort of young people approaching the upper age limit of their child mental health care service in Europe.<h4>Purpose</h4>The presence of distinct child and adolescent mental health services (CAMHS) and adult mental health services (AMHS) impacts continuity of mental health treatment for young people. However, we do not know the extent of discontinuity of care in Europe nor the effects of discontinuity on the mental health of young people. Current research is limited, as the majority of existing studies are retrospective, based on small samples or used non-standardised information from medical records. The MILESTONE prospective cohort study aims to examine associations between service use, mental health and other outcomes over 24 months, using information from self, parent and clinician reports.<h4>Participants</h4>Seven hundred sixty-three young people from 39 CAMHS in 8 European countries, t2021-01-01T00:00:00Z2021 Dec2026-05-08T16:31:38.689Z2022-02-11T14:49:04.888ZS-EPMC86791183491631910.1136/bmjopen-2021-053373