Hygeia Public Health 2016, 51(2): 209-214en

Survival time of patients on hemodialysis. A prospective one-center study

Krzysztof Kanecki ^1/, Antoni Sokalski ^2/, Piotr Tyszko ^1/, Małgorzata Mikołajczyk ^3/

1/ Zakład Opieki Zdrowotnej, Katedra Medycyny Społecznej, Warszawski Uniwersytet Medyczny
2/ Oddział Dializ i Odcinek Nefrologii, Radomski Szpital Specjalistyczny im. dr. Tytusa Chałubińskiego
3/ Oddział Kardiologii, Mazowiecki Szpital Specjalistyczny w Radomiu

Summary
Introduction. Survival in patients receiving regular hemodialysis remains relatively low.
Aim. To analyze survival in a group of hemodialyzed patients and its relationship to sociodemographic and clinical factors.
Material & methods. The study involved 42 women, 68 men (mean age of 59 years; min 24, max 86, Me 59.5). The Cox proportional hazards model with the hazard ratio (HR) estimations were used in this study.
Results. Seventy seven out of 110 patients died during the observation. The 1-year survival of hemodialysis patients was 85%, the 5-year survival was 41%. In the Cox proportional hazard model lower mortality was associated with family support (HR 0.34; CI 0.18-0.65; p<0.002); elevated serum albumin (HR 0.35; CI 1.16-0.76; p<0.01), increased BMI (HR 0.91; CI 0.85-0.98; p<0.02). Higher mortality was associated with age (HR 1.05; CI 1.02-1.08; p<0.001); presence of cardiovascular diseases (HR 2.07; CI 1.05-4.06; p<0.05); elevated serum calcium (HR 1.71; CI 1.34-2.18; p<0.001), serum phosphates (HR 1.46; CI 1.2-1.78; p<0.001).
Conclusion. Family support may be an important factor affecting survival time in patients on hemodialysis and should be widely considered in health care. This study confirmed the association of age, BMI, cardiovascular diseases, serum calcium, phosphates, albumin with survival time of patients receiving regular hemodialysis.

Key words:  family support, hemodialysis, survival time, health care