• 1
    Bertoli AM, Fernandez M, Alarcon GS, Vila LM, Reveille JD. Systemic lupus erythematosus in a multiethnic US cohort LUMINA (XLI): factors predictive of self-reported work disability. Ann Rheum Dis 2007;66:127.
  • 2
    Campbell R Jr, Cooper GS, Gilkeson GS. The impact of systemic lupus erythematosus on employment. J Rheumatol 2009;36:24705.
  • 3
    Yelin E, Trupin L, Katz P, Criswell L, Yazdany J, Gillis J, et al. Work dynamics among persons with systemic lupus erythematosus. Arthritis Rheum 2007;57:5663.
  • 4
    Partridge AJ, Karlson EW, Daltroy LH, Lew RA, Wright EA, Fossel AH, et al. Risk factors for early work disability in systemic lupus erythematosus: results from a multicenter study. Arthritis Rheum 1997;40:2199206.
  • 5
    Scofield L, Reinlib L, Alarcon GS, Cooper GS. Employment and disability issues in systemic lupus erythematosus: a review. Arthritis Rheum 2008;59:14759.
  • 6
    Baker K, Pope J, Fortin P, Silverman E, Peschken C. Work disability in systemic lupus erythematosus is prevalent and associated with socio-demographic and disease related factors. Lupus 2009;18:12818.
  • 7
    Panopalis P, Yazdany J, Gillis JZ, Julian L, Trupin L, Hersh AO, et al. Health care costs and costs associated with changes in work productivity among persons with systemic lupus erythematosus. Arthritis Rheum 2008;59:178895.
  • 8
    Lim SS, Bayakly RA, Helmick CG, Gordon C, Easley K, Drenkard C. The incidence and prevalence of systemic lupus erythematosus, 2002–2004: the Georgia Lupus Registry. Arthritis Rheumatol 2014;66:35768.
  • 9
    McCarty DJ, Manzi S, Medsger TA Jr, Ramsey-Goldman R, LaPorte RE, Kwoh CK. Incidence of systemic lupus erythematosus: race and gender differences. Arthritis Rheum 1995;38:126070.
  • 10
    Yelin E, Tonner C, Trupin L, Panopalis P, Yazdany J, Julian L, et al. Work loss and work entry among persons with systemic lupus erythematosus: comparisons with a national matched sample. Arthritis Rheum 2009;61:24758.
  • 11
    Yelin E, Tonner C, Trupin L, Gansky SA, Julian L, Katz P, et al. Longitudinal study of the impact of incident organ manifestations and increased disease activity on work loss among persons with systemic lupus erythematosus. Arthritis Care Res (Hoboken) 2012;64:16975.
  • 12
    Panopalis P, Julian L, Yazdany J, Gillis JZ, Trupin L, Hersh A, et al. Impact of memory impairment on employment status in persons with systemic lupus erythematosus. Arthritis Rheum 2007;57:145360.
  • 13
    Drenkard C, Rask KJ, Easley K, Bao G, Lim SS. Primary preventive services in patients with systemic lupus erythematosus: study from a population-based sample in Southeast US. Semin Arthritis Rheum 2013;43:20916.
  • 14
    Lim SS, Drenkard C, McCune WJ, Helmick CG, Gordon C, Deguire P, et al. Population-based lupus registries: advancing our epidemiologic understanding. Arthritis Rheum 2009;61:14626.
  • 15
    Hochberg MC, for the Diagnostic and Therapeutic Criteria Committee of the American College of Rheumatology.Updating the American College of Rheumatology revised criteria for the classification of systemic lupus erythematosus [letter].Arthritis Rheum 1997;40:1725.
  • 16
    US Census Bureau. A compass for understanding and using American community survey data: what general data users need to know. In: US Department of Commerce, editor.Washington (DC):US Goverment Printing Office;2008.
  • 17
    Zhang W, Bansback N, Boonen A, Young A, Singh A, Anis AH. Validity of the work productivity and activity impairment questionnaire: general health version in patients with rheumatoid arthritis. Arthritis Res Ther 2010;12:R177.
  • 18
    Tang K, Beaton DE, Boonen A, Gignac MA, Bombardier C. Measures of work disability and productivity: Rheumatoid Arthritis Specific Work Productivity Survey (WPS-RA), Workplace Activity Limitations Scale (WALS), Work Instability Scale for Rheumatoid Arthritis (RA-WIS), Work Limitations Questionnaire (WLQ), and Work Productivity and Activity Impairment Questionnaire (WPAI). Arthritis Care Res (Hoboken) 2011; Suppl 11:S33749.
  • 19
    Reilly MC, Zbrozek AS, Dukes EM. The validity and reproducibility of a work productivity and activity impairment instrument. Pharmacoeconomics 1993;4:35365.
  • 20
    Karlson EW, Daltroy LH, Rivest C, Ramsey-Goldman R, Wright EA, Partridge AJ, et al. Validation of a Systemic Lupus Activity Questionnaire (SLAQ) for population studies. Lupus 2003;12:2806.
  • 21
    Yazdany J, Yelin EH, Panopalis P, Trupin L, Julian L, Katz PP. Validation of the systemic lupus erythematosus activity questionnaire in a large observational cohort. Arthritis Rheum 2008;59:13643.
  • 22
    Yazdany J, Trupin L, Gansky SA, Dall'era M, Yelin EH, Criswell LA, et al. Brief index of lupus damage: a patient-reported measure of damage in systemic lupus erythematosus. Arthritis Care Res (Hoboken) 2011;63:11707.
  • 23
    Drenkard C, Yazdany J, Trupin L, Katz PP, Dunlop-Thomas C, Bao G, et al. Validity of a self-administered version of the Brief Index of Lupus Damage in a predominantly African American systemic lupus erythematosus cohort. Arthritis Care Res (Hoboken) 2014;66:88896.
  • 24
    Wilson E. Probable inference, the law of succession, and statistical inference. J Am Stat Assoc 1927;22:20912.
  • 25
    Kaplan E. Nonparametric estimation from incomplete observations. J Am Stat Soc 1958;53:45781.
  • 26
    Szklo M, Nieto J. Stratification and adjustment: adjustment methods based on stratification. In: Szklo M, editor.Epidemiology: beyond the basics.Gaithersburg (MD):Aspen Publishers;2000. p.26579.
  • 27
    Bertoli AM, Alarcon GS, McGwin G Jr, Fernandez M, Bastian HM, Fessler BJ, et al. Systemic lupus erythematosus in a multiethnic U.S. cohort (LUMINA) XXVII: factors predictive of a decline to low levels of disease activity. Lupus 2006;15:138.
  • 28
    Bureau of Labor Statistics. Earnings and unemployment rates by educational attainment. Employment Projections2012. URL:
  • 29
    Utset TO, Fink J, Doninger NA. Prevalence of neurocognitive dysfunction and other clinical manifestations in disabled patients with systemic lupus erythematosus. J Rheumatol 2006;33:5318.
  • 30
    Gordon C, Isenberg D, Lerstrom K, Norton Y, Nikai E, Pushparajah DS, et al. The substantial burden of systemic lupus erythematosus on the productivity and careers of patients: a European patient-driven online survey. Rheumatology (Oxford) 2013;52:2292301.
  • 31
    Moses N, Wiggers J, Nicholas C, Cockburn J. Prevalence and correlates of perceived unmet needs of people with systemic lupus erythematosus. Patient Educ Couns 2005;57:308.
  • 32
    Murphy NG, Koolvisoot A, Schumacher R Jr, von Feldt JM, Callegari PE. Musculoskeletal features in systemic lupus erythematosus and their relationship with disability. J Clin Rheumatol 1998;4:23845.
  • 33
    Hochberg MC. The incidence of systemic lupus erythematosus in Baltimore, Maryland, 1970–1977. Arthritis Rheum 1985;28:806.
  • 34
    Lim SS, Bayakly R, Gordon C, Helmick CG, Easley K, Bao G, et al. The Georgia Lupus Registry: the incidence and prevalence of systemic lupus erythematosus [abstract].Arthritis Rheum 2011;63:S952.
  • 35
    Burgos PI, McGwin G Jr, Pons-Estel GJ, Reveille JD, Alarcon GS, Vila LM. US patients of Hispanic and African ancestry develop lupus nephritis early in the disease course: data from LUMINA, a multiethnic US cohort (LUMINA LXXIV). Ann Rheum DIS 2011;70:3934.
  • 36
    Alarcon GS, Calvo-Alen J, McGwin G Jr, Uribe AG, Toloza SM, Roseman JM, et al. Systemic lupus erythematosus in a multiethnic cohort: LUMINA XXXV. Predictive factors of high disease activity over time. Ann Rheum Dis 2006;65:116874.