Association of Poverty Income Ratio with Physical Functioning in a Cohort of Patients with Systemic Lupus Erythematosus

Details

• Alternative Title:
  J Rheumatol
• Personal Author:
  Hoge, Courtney ; Bowling, C. Barrett ; Lim, S. Sam ; Drenkard, Cristina ; Plantinga, Laura
• Description:
  Objective:
  
  To examine the association of income relative to the poverty threshold [poverty income ratio (PIR)] with self-reported physical functioning in a cohort of systemic lupus erythematosus patients.
  
  Methods:
  
  We used cross-sectional data on 744 participants from Georgians Organized Against Lupus (GOAL), and secondary analyses used data on 56 participants from a nested pilot study. Primary analyses utilized multivariable linear regression to estimate the association between PIR (categorized as <1.00, 1.00-1.99, 2.00-3.99, and ≥4.00; lower PIRs indicate higher poverty) and Physical Functioning (PF; scaled subscore from Short Form-12 survey; range, 0-100, higher scores indicate better functioning). Secondary analyses summarized complementary measures of physical functioning as means or percentages by PIR (categorized as <1.00, 1.00-1.99, and ≥2.00).
  
  Results:
  
  Overall, the mean age of participants was 48.0 years; 6.7% were male; 80.9% were black; and 37.5%, 21.0%, 29.6% and 12.0% had PIRs of <1.00, 1.00-1.99, 2.00-3.99, and ≥4.00, respectively. The overall mean PF score was 45.8 (36.2, 40.7, 55.5, and 61.2 for PIRs of <1.00, 1.00-1.99, 2.00-3.99, and ≥4.00, respectively). With adjustment, higher PIRs remained associated (β (95% CI)) with higher PF scores (2.00-3.99 vs. 1.00-1.99: 10.9 (3.3 to 18.6); ≥4.00 vs. 1.00-1.99: 16.2 (6.4 to 26.0)). In secondary analyses, higher PIR was also associated with higher scores for objective physical performance.
  
  Conclusion:
  
  Our results show that higher income relative to the poverty threshold is associated with better physical functioning across multiple domains, warranting further research into multi-component functional assessments to develop individual treatment plans and, potentially, improve socioeconomic disparities in outcomes.
  
  
• Subjects:
  Article Epidemiology Quality Of Life Systemic Lupus Erythematosus
• Source:
  J Rheumatol. 47(7):983-990
• Pubmed ID:
  32115428
• Pubmed Central ID:
  PMC7334069
• Document Type:
  Journal Article
• Funding:
  U01 DP005119/DP/NCCDPHP CDC HHSUnited States/ ; U01 DP006488/DP/NCCDPHP CDC HHSUnited States/ ; U01DP005119/ACL/ACL HHSUnited States/ ; UL1 TR000454/TR/NCATS NIH HHSUnited States/
• Volume:
  47
• Issue:
  7
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:6aca31489e1bb718db0f8431a8dc010c37ac42be316d58e42f35a3472b2d87a8
• Download URL:
  https://stacks.cdc.gov/view/cdc/90275/cdc_90275_DS1.pdf
• File Type:
  [PDF - 360.83 KB ]