Related Experiment Video
Updated: Jul 3, 2026
02:28
Measuring Psoriasis Severity at Home
Published on: March 1, 2024
Severity levels in psoriasis: a separate 'very severe' category not required
Amit S Kulkarni1, Elizabeth Horn, Rajesh Balkrishnan
1Department of Pharmacy Practice and Administration, Ohio State University Columbus, Ohio, USA.
The Journal of Dermatological Treatment
|July 25, 2008
Summary
A new
Area of Science:
- Dermatology and clinical research.
Background:
- Psoriasis severity is often categorized to guide treatment.
- Current classifications may include a 'very severe' category based on body surface area (BSA).
Purpose of the Study:
- To evaluate the necessity of a distinct 'very severe' psoriasis category (BSA > 20%).
- To determine if body surface area > 10% adequately predicts disease severity.
Main Methods:
- Analysis of self-assessed psoriasis severity data.
- Comparison of quality of life impacts across different BSA severity groups.
Main Results:
- A significant overlap in quality of life impact exists between severe (BSA 11-20%) and very severe (BSA > 20%) psoriasis groups.
- Body surface area (BSA) exceeding 10% appears sufficient for predicting psoriasis severity.
Conclusions:
- The establishment of a separate 'very severe' psoriasis category (BSA > 20%) may not be clinically necessary.
- BSA > 10% effectively indicates psoriasis severity, potentially simplifying classification systems.
Related Concept Videos
01:23Skin Diseases and Disorders
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
01:31Pulmonary Tuberculosis III
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
00:55Ordinal Level of Measurement
The way a set of data is measured is called its level of measurement. Correct statistical procedures depend on a researcher being familiar with levels of measurement. For analysis, data are classified into four levels of measurement—nominal, ordinal, interval, and ratio.
Data measured using an ordinal scale are similar to nominal scale data, but there is one major difference. The ordinal scale data can be ordered. An example of ordinal scale data is a list of the top five national parks in the...
Data measured using an ordinal scale are similar to nominal scale data, but there is one major difference. The ordinal scale data can be ordered. An example of ordinal scale data is a list of the top five national parks in the...
01:29Staphylococcal Skin Infections
Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
00:53Sound Intensity Level
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
01:30Heart Failure IV: Classification and Diagnostic Evaluation
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...