A study examining inter- and intrarater reliability of three scales for measuring severity of psoriasis: Psoriasis Area and Severity Index, Physician's Global Assessment and Lattice System Physician's Global Assessment

British Journal of Dermatology

Volumn 155, Issue 4, 2006, Pages 707-713

  Berth Jones, J ^a   Grotzinger, K ^b   Rainville, C ^b   Pham, B ^c   Huang, J ^c   Daly, S ^d   Herdman, M ^d   Firth, P ^d   Hotchkiss, K ^a  

^a UNIVERSITY HOSPITALS COVENTRY AND WARWICKSHIRE NHS TRUST   (United Kingdom)

^b GLAXOSMITHKLINE   (United States)

^c GLAXOSMITHKLINE   (Canada)

^d GLAXOSMITHKLINE   (United Kingdom)

Author keywords

Intraclass correlation coefficients; Lattice System Physician's Global Assessment; Physician's Global Assessment; Psoriasis; Psoriasis Area and Severity Index; Scales

Indexed keywords

ADULT; AGED; ARTICLE; CLINICAL ARTICLE; CLINICAL ASSESSMENT; CLINICAL FEATURE; CONTROLLED STUDY; CORRELATION COEFFICIENT; DISEASE SEVERITY; FEMALE; HUMAN; MALE; PRIORITY JOURNAL; PSORIASIS; PSORIASIS VULGARIS; RATING SCALE;

ADULT; AGED; CHRONIC DISEASE; FEMALE; HUMANS; MALE; MIDDLE AGED; OBSERVER VARIATION; PSORIASIS; REPRODUCIBILITY OF RESULTS; SEVERITY OF ILLNESS INDEX;

EID: 33646538384     PISSN: 00070963     EISSN: 13652133     Source Type: Journal    
DOI: 10.1111/j.1365-2133.2006.07389.x     Document Type: Article

References (16)

1. Fredriksson T, Pettersson U. Severe psoriasis - oral therapy with a new retinoid. Dermatologica 1978; 157:238-44.
2. Exum ML, Rapp SR, Feldman SR et al. Measuring severity psoriasis: methodological issues. J Dermatol Treat 1996; 7:119-24.
3. Ashcroft DM, Li Wan Po A, Williams HC, Griffiths CEM. Clinical measures of disease severity and outcome in psoriasis: a critical appraisal of their quality. Br J Dermatol 1999; 141:185-91.
4. Feldman SR. A quantitative definition of severe psoriasis for use in clinical trials. J Dermatol Treat 2004; 15:27-9.
5. Langley RGB, Ellis CN. Evaluating psoriasis with Psoriasis Area and Severity Index, Psoriasis Global Assessment, and Lattice System Physician's Global Assessment. J Am Acad Dermatol 2004; 51:563-9.
6. Feldman SR, Fleischer AB, Reboussin DM et al. The self-administered Psoriasis Area and Severity Index is valid and reliable. J Invest Dermatol 1996; 106:183-6.
7. Eliasziw M, Young SL, Woodbury MG, Fryday-Field K. Statistical methodology for the concurrent assessment of interrater and intrarater reliability: using goniometric measurements as an example. Phys Ther 1994; 74:777-88.
8. Streiner DL, Norman GR. Health Measurement Scales. Oxford: Oxford University Press, 1989; 1-136.
9. Shrout PE. Measurement reliability and agreement in psychiatry. Stat Methods Med Res 1998; 7:301-17.
10. Fleiss JL. Measuring nominal scale agreement among many raters. Psychol Bull 1971; 76:378-82.
11. Giraudeau B, Mary JY. Planning a reproducibility study: how many patients and how many replicates per patient for an expected width of the 95 per cent confidence interval of the intraclass correlation coefficient. Stat Med 2001; 20:3205-14.
12. Marks D, Barton SP, Shuttleworth D et al. Assessment of disease progress in psoriasis. Arch Dermatol 1989; 125:235-40.
13. Ramsey B, Lawrence CM. Measurement of involved surface area in patients with psoriasis. Br J Dermatol 1991; 124:565-70.
14. Tiling-Grosse S, Rees J. Assessment of area involvement in skin disease: a study using schematic figure outlines. Br J Dermatol 1993; 128:69-74.
15. Fleischer AB, Feldman SR, Dekle CL. The SAPASI is valid and responsive to psoriasis disease severity changes in a multicenter clinical trial. J Dermatol 1999; 26:210-15.
16. Carlin CS, Feldman SR, Krueger JG et al. A 50% reduction in the Psoriasis Area Severity Index (PASI 50) is a clinically significant endpoint in the assessment of psoriasis. J Am Acad Dermatol 2004; 50:859-66.