The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Measurement of involved surface area in patients with psoriasis
Abstract
Three methods of measuring the surface area of the involved skin were compared in 10 patients with psoriasis. Using the rule of nines, four untrained observers estimated the average extent of psoriasis as 20, 14, 23 and 33% of the body surface area. Measuring the area of tracings of plaque outlines using image analysis gave a mean involved surface area of 9% and image analysis of whole body photographs gave a mean value of 7%. We conclude that untrained observers using the rule of nines will overestimate the extent of psoriasis and that image analysis of whole body photographs is comparable to that of traced outlines.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT
Martin Bland, J., & Altman, D. (1986) · The Lancet · doi:10.1016/s0140-6736(86)90837-8 · Cited by 47,965
Cited by
Schmitt, J., & Wozel, G. (2005) · Dermatology · doi:10.1159/000083509 · Cited by 440
Puzenat, E., Bronsard, V, Prey, S., Gourraud, P., Aractingi, S., Bagot, M., Cribier, B., Joly, P., Jullien, D., Le Maitre, M., et al. (2010) · Journal of the European Academy of Dermatology and Venereology · doi:10.1111/j.1468-3083.2009.03562.x · Cited by 309
Ashcroft, Po, L. W., Williams, & Griffiths (1999) · British Journal of Dermatology · doi:10.1046/j.1365-2133.1999.02963.x · Cited by 287
Effectiveness of Online vs In-Person Care for Adults With Psoriasis: A Randomized Clinical Trial
Armstrong, A. W., Chambers, C. J., Maverakis, E., Cheng, M. Y., Dunnick, C. A., Chren, M.-M., Gelfand, J. M., Wong, D. J., Gibbons, B. M., Gibbons, C. M., et al. (2018) · JAMA Network Open · doi:10.1001/jamanetworkopen.2018.3062 · Cited by 103
Metadata
- Authors
- RAMSAY, B., & LAWRENCE, C. M.
- Venue
- British Journal of Dermatology
- Publisher
- Oxford University Press (OUP)
- Published
- 1991-06
- Volume
- 124
- Issue
- 6
- Pages
- 565-570
- ISSN
- 0007-0963 (ISSN-L)
- 1365-2133
- OpenAlex
- W2043035301
- Cited by
- 188
- References
- 1
- FWCI
- 1.15
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Measurement of involved surface area in patients with psoriasis. https://app.cochat.ai/papers/10.1111/j.1365-2133.1991.tb04952.x
- The paper
- RAMSAY, B., & LAWRENCE, C. M. (1991). Measurement of involved surface area in patients with psoriasis. British Journal of Dermatology. https://doi.org/10.1111/j.1365-2133.1991.tb04952.x
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
