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The "center" of a data set is also a way of describing location. The two most widely used measures of the "center" of the data are the mean (average) and the median. The words "mean" and "average" are often used interchangeably. The substitution of one word for the other is common practice. The technical term is "arithmetic mean" and "average" is technically a center location. However, in practice among non-statisticians,...
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Descriptive statistics describe or summarize relevant characteristics of a sample and aid in the analysis of data of interest. When analyzing large quantities of data and developing an inference, one needs to identify a value representative of the entire data set. Characteristics such as central tendency, extreme values, range of measurements, or the most repeated value can help better understand the data.
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Measures of central tendency are tools used in biostatistics to identify the average or center of a dataset. They offer a single representative value for understanding and summarizing data distribution.
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Telangiectatic Matting is Associated with Hypersensitivity and a Bleeding Tendency.

Pooja Kadam1, Jerrick Lim2, Ian Paver2

  • 1Dermatology, Phlebology and Fluid Mechanics Laboratory, St Vincent's Centre for Applied Medical Research, Darlinghurst, Australia; Department of Dermatology, St Vincent's Hospital, Darlinghurst, Australia; Faculty of Medicine, University of New South Wales, Sydney, Australia.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
|February 8, 2018
PubMed
Summary

Telangiectatic matting (TM) is linked to hypersensitivity and bleeding tendencies, but not to hemostatic abnormalities. Mast cell hyper-reactivity may underlie TM development in susceptible individuals.

Keywords:
Easy bruisingEpistaxisHypersensitivityMast cellsSclerotherapyTelangiectatic matting

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Area of Science:

  • Vascular Medicine
  • Dermatology
  • Hematology

Background:

  • Telangiectatic matting (TM) is a vascular condition requiring investigation into its pathogenesis and risk factors.
  • Understanding TM's origins is crucial for effective patient management and treatment strategies.

Purpose of the Study:

  • To investigate the pathogenesis of telangiectatic matting (TM).
  • To identify potential risk factors associated with TM development.
  • To analyze the hemostatic and coagulation profiles of patients with TM.

Main Methods:

  • Retrospective analysis of clinical records to identify TM risk factors in 352 patients.
  • Hemostatic and coagulation profiles analyzed using standard tests, platelet function assays, and rotational thromboelastometry (ROTEM) in a subset of TM patients.
  • Comparison of TM patients' profiles with a control group.

Main Results:

  • TM was identified in 7.1% of patients (25 females, median age 45).
  • Significant risk factors included recurrent epistaxis, easy bruising, hypersensitivity disorders (eczema, rhinitis), prior venous treatments, and family history of telangiectasias.
  • No significant differences in hemostatic and coagulation profiles were found between TM patients and controls.

Conclusions:

  • TM is associated with hypersensitivity and bleeding tendencies.
  • No increased incidence of hemostatic abnormalities in TM patients was observed.
  • Mast cell hyper-reactivity is proposed as a potential underlying mechanism linking hypersensitivity, bleeding tendency, and TM predisposition.