Validation of the Spanish, Portuguese and French versions of the Lupus Damage                 Index questionnaire: data from North and South America, Spain and Portugal

Pons-Estel, Bernardo A.; Sánchez‐Guerrero, Jorge; Romero-Díaz, Juanita; Gamarra, Antonio Iglesias; Bonfá, Eloísa; Borba, Eduardo F.; Shinjo, Samuel Katsuyuki; Bernatsky, Sasha; Clarke, Ann E.; Garcı́a, M. C.; Marcos, Josefina; Duarte, Ana Patrícia; Berbotto, Guillermo; Scherbarth, Hugo R.; Marques, Cláudia Diniz Lopes; Onetti, Laura; Saurit, Verónica; Souza, Alexandre Wagner Silva de; Velozo, E.; Catoggio, Luís J.; Neira, Óscar; Burgos, Paula I.; Ramírez, Luis Alberto; Molina, José Fernando; Torre, Ignacio García de la; Silvariño, Ricardo; Manni, Jorge A.; Duran-Barragán, Sergio; Vilá, Luis M.; Fortin, Paul R.; Calvo‐Alén, Jaime; Santos, María José; Portela, María Luz Pita Martín de; Esteva-Spinetti, María H; Weisman, Michael H.; Acevedo, Eduardo; Segami, MI; Gentiletti, Silvana; Roldán, José F.; Navarro, Iris; González, Emilio B.; Liu, J. M.; Karlson, Elizabeth W.; Costenbader, Karen H.; Wolfe, Frederick; Alarcón, Graciela S.

doi:10.1177/0961203309105590

Cited by 21 publications

(12 citation statements)

References 8 publications

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“…In one validation study, a total of 887 SLE patients and 40 rheumatologists with a special interest in SLE participated: 659 of the patients completed the Spanish (611 in Latin America, 30 in the US, and 18 in Spain), 140 the Portuguese (122 in Brazil and 18 in Portugal) and 88 the French (all in Canada) versions of the LDIQ as well as the SDI43. In that study, the SDI total score was 1.9 and the LDIQ total score was 3.7 and the correlation between LDIQ and SDI was 0.61.…”

Section: Discussionmentioning

confidence: 99%

Development and initial validation of a self‐assessed lupus organ damage instrument

Costenbader

Khamashta

Ruiz-Garcia

et al. 2010

Arthritis Care & Research

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Objective. The Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SDI) is a validated instrument for assessing organ damage in systemic lupus erythematosus (SLE). Trained physicians must complete it, thus limiting utility where this is impossible. Methods. We developed and pilot tested a self-assessed organ damage instrument, the Lupus Damage Index Questionnaire (LDIQ), in 37 SLE subjects and 7 physicians. After refinement, 569 English-speaking SLE subjects and 14 rheumatologists from 11 international SLE clinics participated in validation. Subjects and physicians completed the instruments separately. We calculated sensitivity, specificity, Spearman's correlations, and agreement using the SDI as the gold standard. Six hundred five SLE participants in the community-based National Data Bank for Rheumatic Diseases (NDB) study completed the LDIQ and we assessed correlations with outcome and disability measures. Results. The mean LDIQ score was 3.3 (range 0 -16) and the mean SDI score was 1.5 (range 0 -9). The LDIQ had a moderately high correlation with the SDI (Spearman's r ‫؍‬ 0.50, P < 0.001). Specificities of individual LDIQ items were >80%, except for neuropathy. Sensitivities were variable and lowest for damage, with <1% prevalence. Agreement between the SDI and LDIQ was >85% for all but neuropathy, reduced renal function, deforming arthritis, and alopecia. In the NDB, the LDIQ correlated well with the comorbidity index (r ‫؍‬ 0.45), the Short Form 36 physical component scale (r ‫؍‬ 0.43), the Medical Research Council dyspnea scale (r ‫؍‬ 0.40), disability (r ‫؍‬ 0.37), and the Systemic Lupus Erythematosus Activity Questionnaire score (r ‫؍‬ 0.37). Conclusion. The metric properties of the LDIQ are good compared with the SDI. It has construct validity and correlations with health assessments similar to the SDI. The LDIQ should allow expansion of SLE research. Its ultimate value will be determined in longitudinal studies.

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Section: Discussionmentioning

confidence: 99%

Development and initial validation of a self‐assessed lupus organ damage instrument

Costenbader

Khamashta

Ruiz-Garcia

et al. 2010

Arthritis Care & Research

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“…35,36 The MEX-SLEDAI index was used to evaluate the activity of the disease, which contains 24 specific variables grouped by systems with a maximum of 32 points and which are divided, according to the score, in the inactive condition, mild, moderate or severe activity. 37 We performed measurements of serological variables included hemoglobin (normal range 12-14 g/dl) and erythrocyte sedimentation rate (ESR) as well as immunological variables: antinuclear antibodies (ANA) by indirect immunofluorescence performed with Hep2 cells (negative <1:40), anti-dsDNA antibodies determined by indirect immunofluorescence with Crithidia luciliae (negative <1:20), anti-Sm antibodies determined by ELISA (negative <15 U/ml), anticardiolipin IgM and IgG determined by ELISA (negative < 11 UMPL and <23 UGPL, respectively), complement levels by nephelometry (C3: 50-120 mg/dl, C4: 20-50 mg/dl) and lupus anticoagulant by coagulometric method with citrated plasma (Weak: 1.2-1.5/s, moderate: 1.5-2.5/s, strong >2/s).…”

Section: Methodsmentioning

confidence: 99%

Anti-müllerian Hormone in Reproductive Age Women With Systemic Lupus Erythematosus

Velarde-Ochoa

Esquivel‐Valerio

Vega‐Morales

et al. 2015

Reumatología Clínica (English Edition)

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“…The questionnaire has been tested for criterion, content, and construct validity. An international examination of criterion validity in French, Spanish and Portuguese has also been completed (19). The LDIQ has 56 questions to assess all of the original SDI items and was designed for administration as a written survey.…”

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confidence: 99%

Brief index of lupus damage: A patient‐reported measure of damage in systemic lupus erythematosus

Yazdany¹,

Trupin²,

Gansky³

et al. 2011

Arthritis Care & Research

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Objectives: We sought to develop and test an interviewer-administered measure of damage in SLE, the Brief Index of Lupus Damage (BILD), for use in epidemiological studies in which administration of the SLICC/ACR Damage Index (SDI) by trained physicians is not possible or feasible. In addition, we compared the BILD to another recently developed patient-reported measure, the Lupus Damage Index Questionnaire (LDIQ), which was designed as a written survey. Methods: A sample of 81 patients from two university-affiliated SLE clinics was used to test the criterion validity of the BILD and the LDIQ. A second sample, the Lupus Outcomes Study (LOS, n=728) was used to ascertain the construct validity of the BILD. Results: We found good agreement between most BILD items and corresponding SDI items, and moderately high overall Spearman rank correlations for SDI with BILD (0.64 and with LDIQ (0.54). BILD scores were higher among older individuals, those with longer disease duration, and those with higher mean disease activity in the preceding four years. In addition, higher BILD scores were associated with poorer self-rated health and functional status, greater unemployment and work disability, and increased health care utilization. Conclusions: We developed and performed a preliminary validation study demonstrating content, criterion and construct validity of a new practical patient-reported instrument of SLE disease damage. Although further studies are needed to examine reliability and to document psychometric properties in other populations, the BILD appears to represent a promising tool for studies of SLE outside the clinical setting.

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Validation of the Spanish, Portuguese and French versions of the Lupus Damage Index questionnaire: data from North and South America, Spain and Portugal

Cited by 21 publications

References 8 publications

Development and initial validation of a self‐assessed lupus organ damage instrument

Development and initial validation of a self‐assessed lupus organ damage instrument

Anti-müllerian Hormone in Reproductive Age Women With Systemic Lupus Erythematosus

Brief index of lupus damage: A patient‐reported measure of damage in systemic lupus erythematosus

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