 risk stratification index risk stratification index 34 admin mon 10142019 1757 risk stratification index rsi helps to assess risks and to make comparisons of the outcomes for instance in terms of duration of stay and mortality the indicator identifies the patients likely to be at high risk and prioritizing actions needed for improving management of their care additional quantitative risk stratification  identification and prediction of patients that are at high risks or likely to be at high risks and to prioritize the management of their care in order to prevent worse outcomes hospital record information systems describe the risk stratification model applied and the results of its application a level of risk can be calculated by using diagnosis procedures codes for mortality and lengthofstay by using logistic regression cox proportional hazards modeling together these generates an rsi free text number in physical units table with absolute numbers and ratios disaggregated per categories outcome ratio physical units annually annually requires large amount of information on long timescale risk is assessed at population level not an individual patient level yes extract from sigakis et al 2013 p 528 extract from sigakis et al 2013 p 528 available at  http anesthesiologypubsasahqorg articleaspx doi 101097 aln0b013e31829ce6e6 for how to develop a predictive risk model see the guide a risk stratification tool for hospitalisation in australia using primary care data available at  https wwwnaturecom articles s4159801941383y for how to compute the indicator see sigakis et al 2013 validation of a risk stratification index and risk quantification index for predicting patient outcomes available at  https anesthesiologypubsasahqorg articleaspx articleid 1918181 data can also be provided graphically see example  public health 