Serum Interleukin-4 and Total Immunoglobulin E in Nonatopic Alopecia Areata Patients and HLA-DRB1 Typing

Table 5

Frequencies of selected HLA-DRB1 alleles in Alopecia of less than 1 year duration compared to alopecia with a duration of more than 1 year using Chi square test.

DRB1 Allele	Alopecia less than 1 year (n = 41)	Alopecia more than 1 year (n = 13)	𝑃 value
HLA-DRB1*01	0%	23.1%	<.001**
HLA-DRB1*03	29.3%	0%	.014*
HLA-DRB1*04	20.7%	3.8%	.087
HLA-DRB1*07	6.1%	26.9%	.010**
HLA-DRB1*08	7.3%	0%	.866
HLA-DRB1*11	14.6%	46.2%	.002**
HLA-DRB1*13	7.3%	0%	.866
HLA-DRB1*15	14.6%	0%	.26

*statistically significant difference
**statistically highly significant difference