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1.
Eur J Haematol ; 106(6): 774-782, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33565126

ABSTRACT

High proportion of patients with multiple myeloma suffer from comorbidities which may alter clinical management. Therefore, our aims were to evaluate the prevalence of comorbidities and their impact on survival. We included patients diagnosed with multiple myeloma 1990-2013 in Sweden and all diagnoses from each patient from 1985. A total of 13 656 patients with multiple myeloma were included in the study, thereof 7404 (54%) had comorbidity at diagnosis. The risk of death was increased for those with one comorbidity at diagnosis compared to those without any comorbidity (hazard ratio = 1.19; 95% confidence interval:1.14-1.25); this risk was higher for those with two (1.38; 1.30-1.47) and three or more comorbidities (1.72; 1.62-1.83). Furthermore, the risk of death was increased in patients with prior history of cancer, arrhythmia, heart failure, diabetes mellitus, cerebrovascular disease, chronic lung disease, psychological disease, peptic ulcer, neurological disease, peripheral vascular disease, chronic kidney disease, dementia, and inflammatory bowel disease. This large study shows that over 50% of multiple myeloma patients have a comorbidity at diagnosis and survival decreased with increasing numbers of comorbidities. This emphasizes the importance of comorbidities when evaluating patients and deciding on treatment strategies for individuals with multiple myeloma.


Subject(s)
Multiple Myeloma/mortality , Registries , Adult , Aged , Aged, 80 and over , Comorbidity , Disease-Free Survival , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prevalence , Risk Factors , Survival Rate , Sweden/epidemiology
2.
Br J Haematol ; 186(1): 37-44, 2019 07.
Article in English | MEDLINE | ID: mdl-30906990

ABSTRACT

Parental longevity is associated with an increased life expectancy; results with regard to specific diseases are conflicting. There are limited data focusing on host characteristics and their effect on survival among multiple myeloma (MM) patients and individuals with monoclonal gammopathy of undetermined significance (MGUS). Therefore, our aim was to evaluate the impact of parental longevity on survival of patients with MM and MGUS. A total of 4675 patients with MM, 6812 MGUS patients and 13 398 population-based controls for MM as well as 19 110 controls for MGUS, from 1988 to 2013, were included in the study. Longevity was defined as >90 years of age. Among MM patients, parental longevity was associated with a decreased risk of death [hazard ratio (HR) = 0·92, 95% confidence interval (CI) 0·84-0·99] and the same was true for MGUS patients (HR = 0·87, 95% CI 0·78-0·96). Having one long lived parent significantly decreased the risk of death in both groups, but was not statistically significant when both parents exceeded 90 years of age. In conclusion, parental longevity decreases the risk of death for patients with MM and MGUS which may reflect the importance of the host's genetic and environmental factors in relation to survival.


Subject(s)
Longevity/physiology , Monoclonal Gammopathy of Undetermined Significance/mortality , Multiple Myeloma/mortality , Aged , Aged, 80 and over , Case-Control Studies , Female , Humans , Life Expectancy , Male , Middle Aged , Monoclonal Gammopathy of Undetermined Significance/epidemiology , Multiple Myeloma/epidemiology , Parents , Survival Analysis
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