Table 1.

Characteristics of groups of patients by age composition and operations.

	The comparison group (I)	The main group (II)	p	In all
N	299	162		461
Age
35–40 years	30 (10.0%)	11 (6.8%)	0.056	41 (8.9%)
41–55 years	155 (51.8%)	71 (43.8%)		226 (49.0%)
Over 55 years	114 (38.2%)	80 (49.4%)		194 (42.1%)
Operations
Superficial lifting	55 (18.4%)	38 (23.5%)	0.223	93 (20.2%)
SMAS-lifting	155 (51.8%)	71 (43.8%)		226 (49.0%)
SMAS-lifting with a three-level endoscopic assist lift of the lower zone of the face	89 (29.8%)	53 (32.7%)		142 (30.8%)