# Improving the Accuracy of Revised Cardiac Risk Index With HbA1C:Hemoglobin Ratio (HH Ratio)

> **NCT05066386** · — · COMPLETED · sponsor: **Singapore General Hospital** · enrollment: 20099 (actual)

## Conditions studied

- Risk Stratification
- Perioperative Medicine

## Interventions

- **OTHER:** Modified RCRI risk stratification

## Key facts

- **NCT ID:** NCT05066386
- **Lead sponsor:** Singapore General Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2013-01-01
- **Primary completion:** 2021-07-01
- **Final completion:** 2021-08-01
- **Target enrollment:** 20099 (ACTUAL)
- **Last updated:** 2021-10-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05066386

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05066386, "Improving the Accuracy of Revised Cardiac Risk Index With HbA1C:Hemoglobin Ratio (HH Ratio)". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT05066386. Licensed CC0.

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