P772: PROGNOSTIC IMPACT OF DISEASE-RELATED RISK FACTORS AND TREATMENT APPROACHES IN PATIENTS WITH ADVANCED MYELODYSPLASTIC SYNDROMES (MDS). (23rd June 2022) - Lesch, C.; Kündgen, A.; Nachtkamp, K.; Kasprzak, A.; Strupp, C.; Rudelius, M.; Gattermann, N.; Kobbe, G.; Hildebrandt, B.; Germing, U.