Table 2.

Baseline (0 weeks) characteristics of study participants.

	Apple Polyphenol Groups		Placebo Group
	Low-Dose Group (300 mg/day)	High-Dose Group (600 mg/day)
N	21	20	18
Age (y)	34.19 ± 4.29	35.20 ± 3.89	34.06 ± 4.08
MED (mJ/cm2)	5323.7 ± 478.0	5471.1 ± 499.7	5247.0 ± 531.7
Water content (AU)	88.56 ± 18.62	80.94 ± 14.33	85.32 ± 20.59
TEWL (g/h m2)	15.80 ± 5.85	16.12 ± 5.58	14.92 ± 5.10

Values are means ± standard deviation. None of the characteristics was different among the groups at baseline by the Tukey’s multiple comparisons test. MED: minimal erythema dose; TEWL: trans-epidermal water loss.