PIPRA: Pre-Interventional Preventive Risk Assessment
2023An international preoperative model estimating postoperative delirium risk before selected surgery. It is a risk calculation, not a test for delirium, and commercial relationships require transparent disclosure.
Classification
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Tool and original sources
This record describes a method rather than a downloadable bedside form. The main source is linked below.
Original paper
- Principal sourceDodsworth BT, Reeve K, Falco L, Hueting T, Sadeghirad B, Mbuagbaw L, et al. Development and validation of an international preoperative risk assessment model for postoperative delirium. Age and ageing. 2023;52(6). doi: 10.1093/ageing/afad086. PMID: 37290122.
This paper reports the development and initial validation of PIPRA. It is the main source for the method, its intended use and the evidence available at publication.
Article PDF: CC BY-NC. This licence applies to the article PDF and does not grant rights to reproduce the tool.
At a glance
- Purpose
- Future-risk prediction
- Population
- Adults undergoing non-cardiac, non-intracranial surgery
- Setting
- Perioperative
- Time
- preoperative digital calculation; completion time not reported
- Score or threshold
- No single universal threshold established for all settings
Evidence
Reported sensitivity and specificity
AUROC was 0.80 with C-reactive protein and 0.79 without it in internal validation, and 0.74 in external validation.
More evidence and citation details
- Full name
- Pre-Interventional Preventive Risk Assessment
- Evidence summary
- multicohort-development-and-external-validation
- Citation
- Dodsworth BT, et al. Development and validation of an international preoperative risk assessment model for postoperative delirium Age and Ageing. 2023;52(6):afad086. PMID 37290122
Copyright and reuse
- Information checked
- 2026-07-19
Instrument-specific terms apply. See the access and copyright policy or send a correction.
Sources checked 2026-07-29. How profiles are prepared.