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. 2024 Jan 2;14:288. doi: 10.1038/s41598-023-49182-2

Table 2.

Lesion characteristics distribution among the studied groups.

MMR group
N = 15
PPD group
N = 15
Saline group
N = 15
Test of significance Within group significance
Duration of disease (months) 4 (2–6) 3 (2–6) 4 (2–6) KW P1 = 0.226
P = 0.446 P2 = 0.8066
P3 = 0.367
Number of lesions 11 (6–16) 10 (6–17) 8 (6–12) KW P1 = 0.492
P = 0.051 P2 = 0.06
P3 = 0.081
Site
 Trunk 4 (26.7) 4 (26.7) 5 (33.3) χ2 = 11.35
 Leg 0 2 (13.3) 2 (13.3) P = 0.499 P1 = 0.306
 Face & neck 9 (60) 8 (53.3) 5 (33.3) P2 = 0.375
 Elbow 0 0 1 (6.7) P3 = 0.785
 Arm 1 (6.7) 1 (6.7) 2 (13.3)
 Abdomen 1 (6.7) 0 0

KW, Kruskal Wallis test; χ2, Chi-Square test; P1, difference between MMR & PPD group; P2, difference between MMR & Saline group; P3, difference between PPD & Saline group, within group significance was done by Mann Whitney U test.