Table 1. Trichoscopy features in patients with loose anagen hair syndrome, alopecia areata, telogen effluvium and healthy controls.

	LAHS number of patients (%)	AA number of patients (%)	TE number of patients (%)	HC number of patients (%)	Statistical significance
					LAHS vs AA	LAHS vs TE	LAHS vs HC
Dirty dots	18/24 (75%)	18/25 (72%)	15/20 (72%)	15/20 (75%)	NS	NS	NS
Rectangular granular black structures	17/24 (71%)	2/25 (8%)	0/25	0/25	p<0,001	p<0,001	p<0,001
Groups of dense black dots	0/24 (34%)	11/25 (44%)	0/25	0/20	p<0,001	P<0,001	P<0,001
Solitary yellow dots	12/24 (50%)	6/25 (24%)	1/25 (4%)	1/20 (5%)	p<0,001	p<0,001	p<0,001
Clustered yellow dots	0/24 (%)	17/25 (68%)	0/25	0/20	p<0,001	NS	NS
Exclamation-mark hair	0/24	17/25 (68%)	0/25	0/20	p<0,001	NS	NS
Percentage of follicular units with single hair	0,929	/	0,535	0,655	/	p<0,001	P<0,001
Percentage of follicular units with three hair	0	/	0,015	0,06	/	NS	p<0,001
* LAHS = loose anagen hair syndrome; AA = alopecia areata; TE = telogen effluvium; HC= healthy controls; NS = not significant;