 |
|
Standardizing the 60-Second Hair Count
Carina A. Wasko, MD;
Christine L. Mackley, MD;
Leonard C. Sperling, MD;
Dave Mauger, PhD;
Jeffrey J. Miller, MD
Arch Dermatol. 2008;144(6):759-762.
Objective To define the range of normal for a standardized 60-second hair count in men without alopecia.
Design Convenience sample.
Setting Hospital-based practice.
Participants The study included 60 healthy men (age range, 20-60 years) without evidence of alopecia.
Main Outcome Measure Range of normal for a standardized 60-second hair count.
Results Among the 20- through 40-year-old men, the shedding range was 0 to 78 hairs, with a mean of 10.2 hairs. Among the 41- through 60-year-old men, the range was 0-43 hairs, with a mean of 10.3 hairs. Low intrapatient variability for hair counts was found in both age groups, indicating consistent results on consecutive days for all participants. When repeated 6 months later in both age groups, the hair counts did not change much. The hair counts were repeated and verified by a trained investigator, with results similar to those of subject hair counts.
Conclusion A properly performed 60-second hair count is a simple, practical, and reliable tool for the assessment of hair shedding.
Author Affiliations: Department of Dermatology, Baylor College of Medicine, Houston, Texas (Dr Wasko); Department of Dermatology, Uniformed Services University, Bethesda, Maryland (Dr Sperling); and Departments of Health Evaluation Sciences (Dr Mauger) and Dermatology (Dr Miller), Penn State College of Medicine, Hershey, Pennsylvania. Dr Mackley is in private practice, Hummelstown, Pennsylvania.
 CiteULike  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter
What's this?
|
