Three routine blood markers formed a heart-failure risk score. In 198 patients, each step up went with 2.6 times the death hazard — but the study came from one hospital

Could three routine blood results help identify people with heart failure who need closer attention? Researchers reviewed 198 patients with heart failure and reduced ejection fraction at one hospital in Türkiye. They calculated the Osaka Prognostic Score from C-reactive protein, albumin and total lymphocyte count, then followed deaths over two years.

Forty-two patients died, or 21.2%. The median score was 2 among those who died and 0 among survivors. Survival fell step by step across higher score categories, and each additional score point was associated with an adjusted hazard ratio of 2.63 after other variables entered the model.

The score's area under the receiver-operating-characteristic curve was 0.824. That is a measure of how well it separated people who did and did not die in this dataset, not an 82.4% chance that an individual prediction is correct. It performed better than lymphocyte count alone and about as well as C-reactive protein or albumin alone in formal comparisons.

This was a retrospective study from one centre with only 42 deaths, so a model can look better in the patients used to assess it than it will elsewhere. The score also mixes inflammation, nutrition and immune status; it does not tell clinicians which cause produced a high result. Most importantly, prediction is not treatment: raising albumin or changing a blood count has not been shown here to lower risk. The finding is a case for prospective validation, not a home nutrition target.