<prompt> All are morbidity indicators execpt -Period of stay in hospitalDoctor : population ratioAttendance at out patient depamentNotification rates  <response>: Ans. is b i.e., Doctor : population ratio Health change cannot be measured in specified unit. o So, different indicators have been defined which reflect health change in a community. o These indicators are called health indicators e.g. moality indicators, morbidity indicators, Disability rates. 