Nandita Perumal, Arvin Saleh, Alfa Muhihi, Dana McCoy, Jonathan Seiden, Mohamed Bakari, Veneranda Ndesangia, Nzovu Ulenga, Christopher R Sudfeld, Karim P Manji
School readiness among children born to women living with HIV in Dar es Salaam, Tanzania: a cohort study protocol
BMJ paediatrics open
patients low back pain lbp visually identified retrospective pain trajectory often mismatches trajectory derived prospective repeated measures gain insight clinical relevance 2 trajectory types investigated showed higher association clinical outcomes participants 724 adults seeking care lbp danish chiropractic primary care answered weekly shortmessageservices pain intensity frequency 52 weeks translated 8 trajectory classes 52 weeks participants selected retrospective visual pain trajectory 8 trajectory classes clinical outcomes included disability backleg pain intensity back beliefs work ability patientselected pain trajectory classes strongly associated clinical outcomes shortmessageservice trajectory classes baseline followup outcome changes baseline followup held across 5 clinical outcomes strongest associations observed week 52 weakest baseline patients retrospective assessment lbp strongly associated clinical status prospective assessments translated trajectory classes suggests retrospective assessments pain trajectories may provide valuable information captured prospective assessments researchers collecting prospective pain data know captured pain trajectories strongly reflected patients perceptions clinical status patients retrospective assessments seem offer interpretation pain course likely clinically relevant understanding perceived impact condition trajectories based repeated measures perspective prospective pain data inadequately reflect patients clinical status retrospective assessments provide clinically valuable understanding impact condition