Objective Assessment of Sunburn and Minimal Erythema Doses: Comparison of Noninvasive In Vivo Measuring Techniques after UVB Irradiation

EURASIP Journal on Advances in Signal Processing

Table 1 The descriptive statistics of mean differences with biomedical techniques. EI, COR, and increase with higher UVB irradiation. On the contrary, MI, , and decrease. Discrepancy: TEWL, COR, SC, DP, LDI.

	Cases	Minimum	Maximum	Mean	SD
MI100D	20	−28.00	12.00	−8.2285	11.0630
MI200D	20	−75.00	2.00	−45.6355	23.2291
EI100D	20	−10.75	92.00	47.5690	29.9449
EI200D	20	36.00	299.00	154.9840	68.2407
TEWL100D	20	−2.20	6.00	0.7100	2.3799
TEWL200D	20	−6.40	3.20	0.1000	2.1866
COR100D	20	−10.00	23.89	2.4405	8.0193
COR200D	20	−11.20	35.56	1.2560	10.2402
SC100D	20	−6.00	13.00	0.8971	4.0347
SC200D	20	−4.34	7.00	0.8825	3.4885
DP100D	20	−13.00	26.00	2.5990	10.2211
DP200D	20	−15.00	21.00	1.4970	9.9801
LDI100D	20	−20.80	18.80	−0.2200	11.6452
LDI200D	20	−7.00	625.00	213.7200	177.6635
L100D	20	−4.41	0.56	−1.2520	1.1509
L200D	20	−6.77	−0.25	−3.1450	1.8638
A100D	20	0.21	5.09	1.6305	1.1571
A200D	20	1.11	9.57	4.6560	2.2557
B100D	20	−0.96	0.35	−0.1850	0.3261
B200D	20	−1.46	0.77	−0.5840	0.5619
VS100D	20	0.00	2.00	0.7000	0.5712
VS200D	20	1.00	3.00	2.2500	0.7864

MI: mexameter melanin index; EI: mexameter erythema index; TEWL: transepidermal water loss; COR: corneometer CM 825; SC, thickness of stratum corneum; DP, minimal thickness of the epidermis; L, A, and B: colorimetric , and measurements using Chromameter CR 400; LDI: laser-Doppler perfusion imaging; VS: visual score.
#100D: Mean differences of # measure at 100 mj/cm UVB-irradiated doses.
#200D: Mean differences of # measure at 200 mj/cm UVB-irradiated doses.