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Cancer Causes Control. 2009 Oct;20(8):1369-76. doi: 10.1007/s10552-009-9362-7. Epub 2009 May 20.

Neighborhood socioeconomic status influences the survival of elderly patients with myelodysplastic syndromes in the United States.

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Department of Epidemiology and Public Health, Yale University School of Medicine, 60 College St, Box 208034, New Haven, CT 06520-8034, USA.


The potential role of socioeconomic status (SES) in the survival of patients with myelodysplastic syndromes (MDS) has not been evaluated. We conducted the first study to assess the prognostic role of neighborhood SES among a cohort of 2,118 patients (age >/= 66 years) who were diagnosed with incident MDS in the United States during 2001-2002. Principal component analysis was used to develop a summary SES score by combining multiple measures of neighborhood SES. The score was then used to classify the census tract each patient resided in into a category of high, medium, or low SES. Hazard ratios (HRs) were estimated using multivariate Cox proportional hazard models. After adjusting for age, gender, comorbidities, and histological subtypes, compared with MDS patients lived in high-SES census tracts, those resided in medium (HR = 1.14, 95% CI: 1.01-1.30) and low (HR = 1.17, 95% CI: 1.02-1.34) SES census tracts had significantly increased the risks of death. The impact of SES on survival was more apparent for patients with refractory anemia with ringed sideroblasts-patients residing in medium (HR = 1.85, 95% CI: 1.17-2.91) and low (HR = 2.06, 95% CI: 1.27-3.37) census tracts had a nearly two-fold increased the risk of mortality, compared with those living in high-SES census tracts. In conclusion, this population-based study suggests that neighborhood SES status is a significant and independent determinant of survival among elderly patients with MDS in the United States.

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