A study on the applicability of the distance between facial marks classification of male androgenic alopecia
10.3760/cma.j.cn114453-20220804-00239
- VernacularTitle:定点测距分级在男性雄激素性脱发中的适用性研究
- Author:
Jini QI
1
;
Zhounan JIANG
;
Hanxiao CHENG
;
Jue HOU
;
Jingyi TU
;
Yue ZHOU
;
Weili XU
;
Jun ZHAO
;
Zhentao ZHOU
;
Yi ZHOU
;
Junjie MAO
;
Xifei QIAN
;
Chongxiang FAN
;
Jufang ZHANG
;
Zhongfa LYU
Author Information
1. 浙江中医药大学第四临床医学院 浙江大学医学院附属杭州市第一人民医院，杭州 310006
- Keywords:
Alopecia;
Male androgenic alopecia;
Classification of alopecia;
Diagnosis of alopecia;
Distance between facial marks
- From:
Chinese Journal of Plastic Surgery
2023;39(2):125-133
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the applicability of the distance between facial marks classification in evaluating the severity of androgenic alopecia in men.Methods:From June to December 2019, the male Chinese with diagnosis of androgenic alopecia were evaluated in the specific clinic of alopecia of Hangzhou First People’s Hospital according to the distance between facial marks and BASP(basic and specific) classification. The classification based on the distance between facial marks measures the distance from the facial marks of the anterior hairline to the horizontal line of the eyebrow and the longest radius of hair loss in the hair rotation center, the hair recession of the patient’s forehead (F), temporal (M) and vertex (V) parts. The hair loss in each region is rated as 0-3 grade from light to heavy, and the final hair loss grading is expressed as FnMnVn, such as F1M2V0. The highest grade of hair loss in F, M and V is the overall grade of hair loss. SPSS 25.0 software was used to statistically analyze the general data of patients, and Kappa test was used to evaluate the consistency between the results of the distance classification and BASP classification. The repeatability of the distance classification was tested by the repetition rate of three hair loss specialists. When two or more specialists gave the same evaluation among the three hair loss specialists, the result was regarded as the standard result. The ease of use of the distance between facial marks classification was tested by the consistency rate between the grading results of two temporary trained general doctors and the standard results.Results:A total of 150 male patients, aged (32.8±7.9) years (19-58 years), were included, of which 99 patients were 24-35 years old, accounting for 66.00%. It can be observed that the onset age was earlier. As assessed in this classification, the patients who participated in the study were graded as mild in 65 cases(43.33%), severe in 58 cases(38.67%), and moderate, which was consistency with the results obtained by BASP classification ( κ=0.573, P<0.001). Three experienced alopecia specialists evaluated 150 patients through the distance between facial marks. The results showed that the repetition rates of frontal, temporal and parietal classification results were 98.00%(147/150), 97.33%(146/150) and 96.00%(144/150), respectively. The repetition rate of the final alopecia classification was 92.00%(138/150), and the repetition rate of the overall alopecia classification was 98.00%(147/150). The consistency rate between the overall alopecia classification results of two temporary trained general doctors and the standard results was 95.92%(141/147) and 96.60%(142/147), respectively, and the consistency rate of the other results was higher than 90.00% except for one general doctor who was 89.86%(124/138) in the final classification. Conclusion:The distance between facial marks classification is a comparatively accurate and easy-to-learn grading method designed for Chinese male androgenic hair loss patients based on objective measurement data.
