Table 2.

Alopecia areata severity index (AASI) before & after treatment among the four studied groups

AASI (patients with scalp &/or beard AA)	Group A n = 19	Group B n = 16	Group C n = 15	Group D n = 14	Total n = 64	p1a	p2a	p3a	p4a	p5a	p6a	p7c
Baseline AASI
Mean ± SD Median	11.3 ± 12.9 9	12.9 ± 9.9 9.5	16 ± 14.8 9	12.5 ± 9.8 8.5	12.7 ± 11.7 9	0.7	0.2	0.3	0.5	0.7	0.9	0.9
Post-treatment AASI
Mean ± SD Median	5.7 ± 8 2.5	4.8 ± 7.7 0.4	6.4 ± 9.9 0.6	7.4 ± 10.5 2.6	6 ± 8.8 1.3	0.3	0.2	0.2	0.2	0.2	0.9	0.7
Change in AASI
Mean ± SD Median	5.2 ± 7.4 2	7.3 ± 7.1 4.7	9.6 ± 12.6 4.2	5 ± 5.1 4	6.7 ± 8.5 3.1
Percentage of improvement AASI
Mean ± SD	57.5 ± 42	72.6 ± 36.5	65.8 ± 39.9	61.7 ± 41	64.1 ± 39.5	0.9	0.9	0.9	0.9	0.9	0.9	0.9
p value ∞b	0.01*b	0.006*b	0.02*b	0.02* b	0.002*b

n = number of patients in each group, Mann–Whitney test^a; Wilcoxon-sign test^b, Kruskal–Wallis test^c, p value ∞ (baseline & post-treatment AASI), p1(A,B), p2(A,C), p3(A,D), p4(B,C), p5(B,D), p6(C,D), p7(A,B,C,D). AASI: Alopecia Areata Severity Index

*Statistical significance