Conclusion
To our knowledge, none of the existing scoring systems considers the pre-transplant inflammatory and nutritional status. This is the first study to demonstrate the predictive power of pre-transplant CAR for survival outcomes following haplo-HSCT. Compared with DRCI, the nomogram incorporating CAR displayed substantially improved predictive accuracy. It has been proven that a high CAR at diagnosis is associated with a poor prognosis following haplo-HSCT, and this important finding can lead to further investigation.