Table 3. Baseline characteristics of the included patients.

Data presented as n (%) and mean ± SD.

NA: not assessed

Study	Group	Sample size	Age, years	Sex		Scar duration	Fitzpatrick skin type
				Male	Female		II	III	IV
Ali et al. 2024 [13]	Intervention	30	29.47 ± 8.36	12 (40)	18 (60)	2.03 ± 2.02	NA	NA	NA
	Control	30
Abdelhay et al. 2025 [14]	Intervention	21	29.5 ± 9.0	5 (23.8)	16 (76.2)	10.5 ± 7.61	0 (0)	7 (33.3)	14 (66.7)
	Control	21
Karkour et al. 2025 [15]	Intervention	119	26.2 ± 5.8	14 (12)	105 (88)	1.30 ± 1.2	NA	67 (56)	27 (23)
	Control	39	25.8 ± 6.2	15 (38)	24 (62)	2.25 ± 1.5	NA	28 (71)	10 (26)
Malik et al. 2024 [16]	Intervention	50	27.94 ± 5.06	29 (58)	21 (42)	NA	3 (6)	22 (44)	25 (50)
	Control	50