Table 1. The clinical data of acne patients and normal controls for whom the sebum secretion was checked.
| Variable | T-zone dominant group | U-zone dominant group | Mixed group | Total patients | Control group |
|---|---|---|---|---|---|
| No. of patients | 3 | 44 | 20 | 67 | 50 |
| Male:female ratio | 0:3 | 1:0.57 | 1:0.82 | 1:0.71 | 1:1 |
| Male/female | 0/3 | 28/16 | 11/9 | 39/28 | 25/25 |
| Age (yr) | 18.0±7.9 | 22.2±5.7 | 21.6±4.2 | 21.8±5.4 | 22.5±3.1 |
| <25 | 2 | 34 | 17 | 53 | 31 |
| ≥25 | 1 | 10 | 3 | 14 | 19 |
| Onset age (yr) | 14.0±7.4 | 18.6±5.7 | 19.3±5.5 | 18.7±5.6 | N/A |
| Secreted sebum level | |||||
| T-zone | 77.7±60.1 | 100.5±71.3 | 108.9±56.2* | 102.0±66.1* | 80.6±39.1 |
| U-zone | 24.7±26.1 | 78.1±78.3* | 73.1±52.7* | 74.2±70.2* | 42.7±29.3 |
| Whole face | 55.3±47.3 | 90.5±69.7* | 94.1±47.7* | 90.0±62.9* | 65.4±30.9 |
Values are presented as number only or mean±standard deviation. N/A: not applicable. *Significantly different from control group (p<0.05).