Clinical effect of botulinum toxin type A combined with autologous fat grafting in patients with nasolabial fold depression

Table 7 Comparison of global aesthetic improvement scale scores (mean ± SD, points)

Group	n	Before operation	1 month after operation	3 months after operation	6 months after operation
Observation group	30	4.52 ± 0.41	3.76 ± 0.12a	3.02 ± 0.05a,b	1.28 ± 0.06a,b,c
Control group	30	4.44 ± 0.39	4.08 ± 0.09a	3.96 ± 0.11a,b	2.67 ± 0.08a,b,c
t		0.774	11.685	42.610	76.133
P value		> 0.05	< 0.01	< 0.01	< 0.01

^aP < 0.05 compared with before the operation in the same group.

^bP < 0.05 compared with 1 month after the operation in the same group.

^cP < 0.05 compared with 3 months after the operation in the same group.