TABLE E1.

Human subjects involved in this study

Group	Subject no.	Date of collection	Sex	Age (y)	Ethnicity	Local EASI score		oSCORAD disease score
						Right arm	Left arm
Healthy subjects	H01	15/07/2019	F	51	Hispanic or Latino/White	N/A	N/A	N/A
	H02	15/07/2019	F	22	Hispanic or Latino/White	N/A	N/A	N/A
	H03	15/07/2019	F	40	Hispanic or Latino/White	N/A	N/A	N/A
	H04	15/07/2019	F	45	White	N/A	N/A	N/A
	H05	15/07/2019	M	27	White	N/A	N/A	N/A
	H06	17/07/2019	F	23	Asian	N/A	N/A	N/A
	H07	19/07/2019	F	23	Hispanic or Latino/White	N/A	N/A	N/A
	H08	22/07/2019	F	31	Black/White	N/A	N/A	N/A
	H09	30/07/2019	F	28	White	N/A	N/A	N/A
	H10	14/08/2019	M	40	Asian	N/A	N/A	N/A
	H11	16/09/2019	F	55	Asian	N/A	N/A	N/A
	H12	16/09/2019	M	58	Asian	N/A	N/A	N/A
	H13	18/09/2019	M	21	White	N/A	N/A	N/A
	H14	01/10/2019	M	27	Hispanic or Latino/White	N/A	N/A	N/A
Subjects with atopic dermatitis	AD01	16/07/2019	M	44	Black	0.095	0.095	66
	AD02	18/07/2019	F	26	Asian	0.075	0.055	54.3
	AD03	25/07/2019	M	53	White	0.14	0.14	55.9
	AD04	25/07/2019	M	23	Asian	0.12	0.12	34.2
	AD05	25/07/2019	F	21	Asian	0.11	0.12	34.9
	AD06	27/08/2019	M	40	White	0.055	0.075	67.2
	AD07	19/09/2019	F	20	Asian	0.07	0.07	64.3
	AD08	20/09/2019	M	20	White	0.055	0.055	24.6
	AD09	30/09/2019	F	36	Hispanic or Latino/White	0.015	0.0125	22.68
	AD10	04/10/2019	F	51	White	0.095	0.095	55.5
	AD11	04/10/2019	F	21	White	0.04	0.04	33.4
	AD12	08/10/2019	M	18	Asian	0.18	0.18	53.2
	AD13	08/10/2019	F	18	Asian	0.15	0.15	44.8

EASI, Eczema Area and Severity Index; F, female; M, male; N/A, nonapplicable; oSCORAD, Objective Scoring Atopic Dermatitis.

All samples were collected on the antecubital fossa skin. None of the subjects were undergoing treatment at the time of collection.