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. 2023 Feb 21;315(6):1675–1688. doi: 10.1007/s00403-023-02565-x

Table 1.

Demographics and clincal data of the studied groups

Group A
n = 19
Group B
n = 16
Group C
n = 15
Group D
n = 14
Total
n = 64
p value
Sex

M = 10(52%)

F = 9(48%)

M = 8(50%)

F = 8 (50%)

M = 8(53%)

F = 7(47%)

M = 8(57%)

F = 6(43%)

M = 34(53%)

F = 30(47%)

0.9a

Age (years)

Mean ± SD

27.2 ± 9.2 27 ± 10.9 27 ± 7.1 25.2 ± 8.8 26.7 ± 8.9 0.9b
Duration of the current episode of AA (month)

Median (IQR)

Mean ± SD

4(1–8.5)

17 ± 33

8(3–18)

15 ± 20

9(3–48)

25 ± 28

6.5(3.3–14.3)

14 ± 22

6(2.75–18)

18.3 ± 26.7

0.65b
Site of hair loss
Scalp 15(79%) 14(87.5%) 13(87%) 13(93%) 55(85.9%) 0.9 a
Scalp and beard 2(10.5%) 0 1(6.5%) 0 3(4.6%) 0.8 a
Beard alone 2(10.5%) 2(12.5%) 1(6.5%) 1(7%) 6(9.3%) 0.9 a
Pattern of hair loss
Ophiasis 4(21%) 3(18.75%) 3(20%) 3(21.4%) 13(20.3%) 0.99 a
Patchy 15(79%) 13(81.25%) 12(80%) 11(78.6%) 51(79.6%)
Number of lesions in each group 40 62 45 38 185 0.684a
Nail affection 2(10.5%) 3(18.75%) 1(6.5%) 3(21.4%) 9(14%)
Past history of AA 7(36.8%) 11(68.75%) 9(60%) 4(28.6%) 31(48.4%)
Family history 8(42.1%) 6(37.5%) 10(66.67%) 2(14.3%) 26(40.6%)

Note: Chi-square testa; Kruskal–Wallis testb. M: Male, F: Female.