Coronary disease & ACSCohort study
Impact of malnutrition on outcomes among elderly ST-Elevation myocardial infarction patients receiving primary percutaneous coronary intervention
- retrospective cohort study
Authors' conclusion
Approximately one in four elderly STEMI patients undergoing primary PCI were malnourished. Worsening malnutrition was associated with adverse in-hospital and 1-year outcomes, even after adjusting for frailty. Routine screening for malnutrition may help identify higher-risk patients and facilitate early risk stratification and targeted nutritional and rehabilitative interventions in STEMI care.
Study context
- Population
- STEMI patients ≥65 years who underwent primary PCI within the Vancouver Coastal Health Authority (2007–2020)included patients, 315 (26.9%) malnourished
- Participants
- 1,169 patients
- Exposure
- Association between malnutrition severity (CONUT score, per 3-point increase) and in-hospital and 1-year outcomes
- Malnourishedn = 315
- Outcome
- In-hospital all-cause mortality
- Follow-up
- In-hospital
Main finding
As reported in the abstract
Odds ratio
2.83 per 3-point increase
95% CI 2.01–3.97
CONUT score (per 3-point increase)
OR 2.83 per 3-point increase (95% CI 2.01–3.97)
Per 3-point increase, as printed
Observational data: associations, not effects.
Secondary outcomes
| Outcome | OR (per 3-point increase) (95% CI) | |
|---|---|---|
| Composite in-hospital adverse outcomes · adjusted for age, sex, FI, and clinical covariates | 1.41 (1.12–1.77) | |
| 1-year all-cause mortality · adjusted for age, sex, FI, and clinical covariates | 2.16 (1.41–3.31) | |
| 0.20.5125Odds ratio (log scale) |
Original publication
Impact of malnutrition on outcomes among elderly ST-Elevation myocardial infarction patients receiving primary percutaneous coronary intervention. Am Heart J. Published 15 May 2026. doi:10.1016/j.ahj.2026.107489
Summarised from the published abstract; every number is checked against it