German PROMIS National Center

Research on PROMIS tools in Germany

Achieving reliable pain change scores forindividuals in the postoperative phase: carefullychoose sampling density, test length, andadministration mode

Despite tremendous efforts to increase the reliability of pain measures and other self-report instruments, improving or evenevaluating the reliability of change scores has been largely neglected. In this study, we investigate the ability of 2 …

More flexible response functions for the PROMIS physical functioning item bank by application of a monotonic polynomial approach

Purpose: In developing item banks for patient reported outcomes (PROs), nonparametric techniques are often used for investigating empirical item response curves, whereas final banks usually use parsimonious parametric models. A flexible approach …

New publication: More flexible response functions for the PROMIS physical functioning item bank by application of a monotonic polynomial approach

Carl Falk from McGill University in Montreal, Canada and I investigated the use of a more flexible IRT model to fit the PROMIS Physical Function Itembank. The paper has been now published in Quality of Life Research’s nonparametric IRT section.

New publication: PPV and NPV for continous and ordinal tests

Many diagnostic tests get dichotomized when calculating the positive and negative predictive value in a clinical setting - this is obviously a loss of information that could be avoided. In this paper, i extended the rationale of the ppv and npv to continous and ordinal scales, so you can get a more fine-grained assessment.

Using Bayes theorem to estimate positive and negative predictive values for continuously and ordinally scaled diagnostic tests

**Objectives:** Positive and negative predictive values (PPV/NPV) are frequently reported to put estimates of accuracy of a diagnostic test in clinical context and to obtain risk estimates for a given patient taking into account baseline prevalence …

Data: PROMIS Profile 29 general population data published

Today, we published PROMIS Profile 29 data from the general population in the UK, Germany and France at the Health Measures Dataverse. We hope that this data can be of use, e.

Predicting EQ-5D-5L crosswalk from the PROMIS-29 profile for the United Kingdom, France, and Germany

**Background:** EQ-5D health state utilities (HSU) are commonly used in health economics to compute quality-adjusted life years (QALYs). The EQ-5D, which is country-specific, can be derived directly or by mapping from self-reported health-related …

Patient-reported outcomes feedback report for knee arthroplasty patients should present selective information in a simple design - findings of a qualitative study

**Background:** Technical innovation to assess patient-reported outcomes (PROs) facilitates their implementation in clinical practice. In particular, mobile applications (apps) allow PROs to be assessed outside of the clinical setting. A patient’s …

Using subdomain-specific item sets affected PROMIS physical function scores differently in cardiology and rheumatology patients

Objectives: The Patient-Reported Outcomes Measurement Information System (PROMIS) physical function (PF) item bank has been developed to standardize patient-reported PF across medical fields. However, evidence of scoring equivalence across cardiology …