Household income and earnings losses among 6,396 persons with rheumatoid arthritis

Frederick Wolfe, Kaleb Michaud, Hyon K. Choi, Rhys Williams

Research output: Contribution to journalReview article

75 Citations (Scopus)

Abstract

Objective. Rheumatoid arthritis (RA) causes disability and reduced productivity. There are no large quantitative studies of earnings and productivity losses in patients with clinical RA, and no studies of household income losses. We describe methods for obtaining earnings and household income losses that are applicable to working as well as nonworking RA patients, and we perform such studies using these methods. Methods. We estimated cross-sectional expected annual earnings and household income losses in 6,649 persons with RA from Current Populations Survey (CPS) and O*NET (Occupational Information Network) data, and we estimated expected household income and earnings losses based on demographic characteristics after adjustment to Medical Outcomes Study Short-Form 36 (SF-36) population norms (internal method). Workplace productivity was measured by the Work Limitations Questionnaire (WLQ). Results. 27.9% of patients aged ≤ 65 years considered themselves disabled after 14.6 years of RA, and 8.8% received disability benefits. Annual earnings losses ranged between $2,319 and $3,407 by the CPS and internal method (preferred), with losses of 9.3% and 10.9%. A 0.25 difference in Health Assessment Questionnaire (HAQ) score was associated with a $1,095 difference in annual earnings. Productivity losses were 6% based on work limitations identified by the WLQ. Household income loss (percentage loss) including transfer payments was $6,287 (11.8%) for all patients, $4,247 (6.9%) for employed patients, and $7,374 (14.8%) for nonworking patients. Among nonworking nondisabled patients aged ≤ 65 years, income loss was 14.1%. Conclusion. As measured by annual household income loss, the overall impact of RA is $6,287 (11.8%). Earnings and household income are dependent on functional status, education, age, ethnicity, and marital status. Income loss is predicted by the HAQ, HAQ-II, Modified HAQ, and SF-36.

Original languageEnglish (US)
Pages (from-to)1875-1883
Number of pages9
JournalJournal of Rheumatology
Volume32
Issue number10
StatePublished - Oct 1 2005

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Rheumatoid Arthritis
Health
Population
Social Adjustment
Information Services
Surveys and Questionnaires
Marital Status
Workplace
Demography
Outcome Assessment (Health Care)
Education

Keywords

  • Earnings
  • Household income
  • Indirect costs
  • Productivity
  • Rheumatoid arthritis

ASJC Scopus subject areas

  • Rheumatology
  • Immunology and Allergy
  • Immunology

Cite this

Household income and earnings losses among 6,396 persons with rheumatoid arthritis. / Wolfe, Frederick; Michaud, Kaleb; Choi, Hyon K.; Williams, Rhys.

In: Journal of Rheumatology, Vol. 32, No. 10, 01.10.2005, p. 1875-1883.

Research output: Contribution to journalReview article

Wolfe, Frederick ; Michaud, Kaleb ; Choi, Hyon K. ; Williams, Rhys. / Household income and earnings losses among 6,396 persons with rheumatoid arthritis. In: Journal of Rheumatology. 2005 ; Vol. 32, No. 10. pp. 1875-1883.
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abstract = "Objective. Rheumatoid arthritis (RA) causes disability and reduced productivity. There are no large quantitative studies of earnings and productivity losses in patients with clinical RA, and no studies of household income losses. We describe methods for obtaining earnings and household income losses that are applicable to working as well as nonworking RA patients, and we perform such studies using these methods. Methods. We estimated cross-sectional expected annual earnings and household income losses in 6,649 persons with RA from Current Populations Survey (CPS) and O*NET (Occupational Information Network) data, and we estimated expected household income and earnings losses based on demographic characteristics after adjustment to Medical Outcomes Study Short-Form 36 (SF-36) population norms (internal method). Workplace productivity was measured by the Work Limitations Questionnaire (WLQ). Results. 27.9{\%} of patients aged ≤ 65 years considered themselves disabled after 14.6 years of RA, and 8.8{\%} received disability benefits. Annual earnings losses ranged between $2,319 and $3,407 by the CPS and internal method (preferred), with losses of 9.3{\%} and 10.9{\%}. A 0.25 difference in Health Assessment Questionnaire (HAQ) score was associated with a $1,095 difference in annual earnings. Productivity losses were 6{\%} based on work limitations identified by the WLQ. Household income loss (percentage loss) including transfer payments was $6,287 (11.8{\%}) for all patients, $4,247 (6.9{\%}) for employed patients, and $7,374 (14.8{\%}) for nonworking patients. Among nonworking nondisabled patients aged ≤ 65 years, income loss was 14.1{\%}. Conclusion. As measured by annual household income loss, the overall impact of RA is $6,287 (11.8{\%}). Earnings and household income are dependent on functional status, education, age, ethnicity, and marital status. Income loss is predicted by the HAQ, HAQ-II, Modified HAQ, and SF-36.",
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AU - Wolfe, Frederick

AU - Michaud, Kaleb

AU - Choi, Hyon K.

AU - Williams, Rhys

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N2 - Objective. Rheumatoid arthritis (RA) causes disability and reduced productivity. There are no large quantitative studies of earnings and productivity losses in patients with clinical RA, and no studies of household income losses. We describe methods for obtaining earnings and household income losses that are applicable to working as well as nonworking RA patients, and we perform such studies using these methods. Methods. We estimated cross-sectional expected annual earnings and household income losses in 6,649 persons with RA from Current Populations Survey (CPS) and O*NET (Occupational Information Network) data, and we estimated expected household income and earnings losses based on demographic characteristics after adjustment to Medical Outcomes Study Short-Form 36 (SF-36) population norms (internal method). Workplace productivity was measured by the Work Limitations Questionnaire (WLQ). Results. 27.9% of patients aged ≤ 65 years considered themselves disabled after 14.6 years of RA, and 8.8% received disability benefits. Annual earnings losses ranged between $2,319 and $3,407 by the CPS and internal method (preferred), with losses of 9.3% and 10.9%. A 0.25 difference in Health Assessment Questionnaire (HAQ) score was associated with a $1,095 difference in annual earnings. Productivity losses were 6% based on work limitations identified by the WLQ. Household income loss (percentage loss) including transfer payments was $6,287 (11.8%) for all patients, $4,247 (6.9%) for employed patients, and $7,374 (14.8%) for nonworking patients. Among nonworking nondisabled patients aged ≤ 65 years, income loss was 14.1%. Conclusion. As measured by annual household income loss, the overall impact of RA is $6,287 (11.8%). Earnings and household income are dependent on functional status, education, age, ethnicity, and marital status. Income loss is predicted by the HAQ, HAQ-II, Modified HAQ, and SF-36.

AB - Objective. Rheumatoid arthritis (RA) causes disability and reduced productivity. There are no large quantitative studies of earnings and productivity losses in patients with clinical RA, and no studies of household income losses. We describe methods for obtaining earnings and household income losses that are applicable to working as well as nonworking RA patients, and we perform such studies using these methods. Methods. We estimated cross-sectional expected annual earnings and household income losses in 6,649 persons with RA from Current Populations Survey (CPS) and O*NET (Occupational Information Network) data, and we estimated expected household income and earnings losses based on demographic characteristics after adjustment to Medical Outcomes Study Short-Form 36 (SF-36) population norms (internal method). Workplace productivity was measured by the Work Limitations Questionnaire (WLQ). Results. 27.9% of patients aged ≤ 65 years considered themselves disabled after 14.6 years of RA, and 8.8% received disability benefits. Annual earnings losses ranged between $2,319 and $3,407 by the CPS and internal method (preferred), with losses of 9.3% and 10.9%. A 0.25 difference in Health Assessment Questionnaire (HAQ) score was associated with a $1,095 difference in annual earnings. Productivity losses were 6% based on work limitations identified by the WLQ. Household income loss (percentage loss) including transfer payments was $6,287 (11.8%) for all patients, $4,247 (6.9%) for employed patients, and $7,374 (14.8%) for nonworking patients. Among nonworking nondisabled patients aged ≤ 65 years, income loss was 14.1%. Conclusion. As measured by annual household income loss, the overall impact of RA is $6,287 (11.8%). Earnings and household income are dependent on functional status, education, age, ethnicity, and marital status. Income loss is predicted by the HAQ, HAQ-II, Modified HAQ, and SF-36.

KW - Earnings

KW - Household income

KW - Indirect costs

KW - Productivity

KW - Rheumatoid arthritis

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