Patient Reported Outcomes Measurement Information System

Abstract

The Patient Reported Outcomes Measurement Information System (PROMIS) is a comprehensive, dynamic system built upon extensive collections of item banks. An item bank is a meticulously curated set of questions designed to measure a single, specific concept, such as depression, fatigue, pain, or emotional support. PROMIS is designed to measure three overarching, global domains of health and well-being: physical health, mental health, and social health. These instruments offer flexible administration options, including traditional paper-and-pencil short forms and highly efficient, personalized assessment via Computer Adaptive Testing (CAT).

Keywords

PROMIS, Patient Reported Outcomes, Item Banks, Computer Adaptive Testing, Health Measurement, Physical Health, Mental Health, Social Health, Psychometrics, Quality of Life

Authors

Health Measures (2004), Terwee CB, et al. (2014) (Dutch Version)

Purpose

The primary purpose of PROMIS is to provide highly reliable, precise, and efficient measures of patient-reported health status across a wide range of clinical research and practice settings. It aims to standardize the measurement of patient-reported outcomes (PROs) using modern psychometrics, specifically Item Response Theory (IRT). By utilizing item banking and CAT, PROMIS allows clinicians and researchers to assess health concepts with greater precision and fewer items compared to traditional static questionnaires.

PROMIS seeks to capture the patient’s perspective on their own health and well-being, providing crucial data that complements objective clinical measures. Its applications span chronic disease management, clinical trials, population health surveillance, and quality improvement initiatives, ensuring that patient voice is central to healthcare evaluation.

Construct

PROMIS measures a broad, hierarchical construct of health and well-being, categorized into three distinct, high-level domains: Physical Health, Mental Health (or Psychological Health), and Social Health.

The sub-constructs measured within these domains are extensive and include specific concepts such as: Pain Interference, Fatigue, Physical Function, Anxiety, Depression, Sleep Disturbance, and Social Role Participation. The use of IRT models ensures that measurement is consistent across different item sets and populations, allowing for precise tracking of changes in health status over time.

Validity

The validity of PROMIS instruments is exceptionally strong, derived from rigorous development processes involving large-scale field testing and calibration using Item Response Theory (IRT). PROMIS instruments demonstrate high levels of content validity, as items were generated through extensive literature reviews, expert input, and patient focus groups to ensure comprehensive coverage of the targeted constructs.

Furthermore, substantial evidence supports the construct validity of PROMIS, showing appropriate correlations with established legacy measures and expected differences between known clinical groups. The instruments exhibit strong discriminant validity, ensuring that different item banks measure distinct concepts (e.g., pain interference is distinct from fatigue).

Reliability

PROMIS exhibits excellent reliability, particularly when administered via CAT. The CAT methodology allows the instrument to select the most informative items for each individual, resulting in highly precise scores (low standard error of measurement) across the entire range of the health continuum.

Traditional short forms derived from the item banks also demonstrate high internal consistency (Cronbach’s alpha typically > .90) and robust test-retest reliability, confirming that scores are stable over time in stable populations and sensitive to change when clinical improvement or deterioration occurs.

Factor Analysis

The structure of PROMIS is confirmed through extensive factor analysis, supporting the intended hierarchical model of health. Exploratory and confirmatory factor analyses performed during the initial validation phase confirmed that items within each bank load onto a single, dominant factor, justifying their use as unidimensional measures calibrated under IRT.

At the broader level, higher-order factor analyses confirm the three primary domains—Physical, Mental, and Social Health—although many health concepts are often found to be highly correlated, reflecting the complex, integrated nature of human health and well-being.

Instrument

Test Type: Questionnaire

Format: Item Banks, Short Forms, and Computer Adaptive Testing (CAT)

Language Available: English, Dutch, and numerous other translations validated internationally.

Population Group: Clinical and General Population

Age Group: Children, Adults, Elderly

Population Details: The instrument is designed for broad application across diverse populations, including healthy individuals and those with various acute and chronic conditions. The system includes pediatric versions for appropriate age groups.

Test Methodology: Patient Reported Outcomes (PROs) using Item Response Theory (IRT) calibration.

Keywords

IRT, Physical Function, Pain Interference, Social Role, Depression, Anxiety, Quality of Life Assessment, Health Outcomes

Authors

Author ORCID Identifier: N/A (Organizational/Consortium Authorship)

Affiliation Email addresses: N/A (Managed by Health Measures)

Correspondence Address: Health Measures, PROMIS Coordinating Center

Permissions & Fee and Test Year

PROMIS instruments are generally available for use by researchers and clinicians, often with no or minimal fees for non-commercial use, depending on the specific administration platform and licensing agreements with Health Measures. The initial development of the core item banks began in 2004. The Dutch version was validated and published in 2014 by Terwee CB, et al.

The original explanatory form (Toelichtingsformulier), which provides detailed information regarding the Dutch version of the scale, can be accessed here: https://scales.arabpsychology.com/wp-content/uploads/instrumenten/PROMIS-form.pdf

Reference’s

• Health Measures (2004). Patient Reported Outcomes Measurement Information System (PROMIS).
• Terwee CB, et al. (2014). Validation of the Dutch version of the PROMIS item banks. [Specific citation details required based on source paper].
• Gershon, R. C., et al. (2012). The PROMIS 2010 profile v1.0: further psychometric properties and applications. Quality of Life Research, 21(3), 433-441.
• Cella, D., et al. (2007). The Patient-Reported Outcomes Measurement Information System (PROMIS): progress of an NIH Roadmap cooperative group. Medical Care, 45(5 Suppl 1), S3–S11.

Items of the Patient Reported Outcomes Measurement Information System

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

The source content provides the following functional areas covered by the item banks, rather than specific scale items:

• Activiteiten (Activities)
• Algemene taken en eisen (General tasks and demands)
• Bewegingssysteem (Musculoskeletal system/Motor functions)
• Maatschappelijk-sociaal leven (Socio-community life)
• Mentale functies (Mental functions)
• Participatie algemeen (General participation)
• Persoonlijke factoren (Personal factors)
• Sensorische functies en pijn (Sensory functions and pain)
• Tussenmenselijke interacties en relaties (Interpersonal interactions and relationships)