Table 2.
Composition (%) of free fatty acids in sebum of the AGA and non-AGA groups.
| Type of Free Fatty Acids | AGA Group | Non-AGA Group | p-Value |
|---|---|---|---|
| C16:0 | 33.10 ± 5.15 | 31.35 ± 3.29 | 0.0276 |
| (C16:1_1) | 12.53 ± 3.08 | 12.29 ± 2.43 | 0.6380 |
| C14:0 | 11.55 ± 1.89 | 11.11 ± 1.24 | 0.1381 |
| (C18:1) | 11.22 ± 2.40 | 11.13 ± 2.13 | 0.8455 |
| C15:0 | 8.16 ± 1.72 | 8.36 ± 1.40 | 0.4889 |
| C18:0 | 3.70 ± 1.39 | 3.48 ± 0.59 | 0.2562 |
| C17:0 | 2.84 ± 0.67 | 2.93 ± 0.58 | 0.4427 |
| (Branched C16:0_3) | 1.79 ± 0.91 | 2.23 ± 0.93 | 0.0108 |
| (Branched C14:0) | 1.47 ± 0.85 | 1.87 ± 0.82 | 0.0113 |
| (Branched C15:0_3) | 1.31 ± 0.60 | 1.26 ± 0.38 | 0.5798 |
| (Branched C16:1) | 1.14 ± 0.74 | 1.40 ± 0.61 | 0.0414 |
| (C17:1_2) | 1.11 ± 0.44 | 1.19 ± 0.32 | 0.2561 |
| (C16:1_2) | 1.06 ± 0.46 | 1.11 ± 0.35 | 0.5138 |
| (C14:1) | 0.96 ± 0.48 | 0.99 ± 0.38 | 0.7238 |
| C24:0 | 0.82 ± 0.45 | 0.80 ± 0.31 | 0.7859 |
| C12:0 | 0.79 ± 0.47 | 0.78 ± 0.30 | 0.8865 |
| (C17:1_3) | 0.79 ± 0.40 | 0.84 ± 0.28 | 0.4200 |
| (C15:1) | 0.68 ± 0.34 | 0.70 ± 0.30 | 0.8021 |
| C18:2n6t | 0.61 ± 0.35 | 0.69 ± 0.29 | 0.1469 |
| (Branched C18:1) | 0.56 ± 0.52 | 0.75 ± 0.49 | 0.0425 |
| (Branched C17:0_1) | 0.52 ± 0.36 | 0.63 ± 0.27 | 0.0542 |
| (Branched C17:0_2) | 0.39 ± 0.30 | 0.43 ± 0.24 | 0.4769 |
| C13:0 | 0.39 ± 0.32 | 0.50 ± 0.25 | 0.0333 |
| (C17:1_1) | 0.29 ± 0.28 | 0.32 ± 0.24 | 0.5850 |
| (C18:2) | 0.28 ± 0.26 | 0.33 ± 0.24 | 0.2331 |
| C20:0 | 0.26 ± 0.27 | 0.35 ± 0.23 | 0.0674 |
| C22:0 | 0.23 ± 0.26 | 0.31 ± 0.19 | 0.0483 |
| (C20:2) | 0.20 ± 0.24 | 0.23 ± 0.22 | 0.4610 |
| (Branched C15:0_1) | 0.19 ± 0.23 | 0.27 ± 0.22 | 0.0421 |
| C18:2n6c | 0.18 ± 0.23 | 0.31 ± 0.29 | 0.0097 |
| (Branched C15:0_2) | 0.16 ± 0.30 | 0.16 ± 0.21 | 0.9575 |
| C18:1n9c | 0.13 ± 0.25 | 0.07 ± 0.17 | 0.1856 |
| Others_3 | 0.12 ± 0.19 | 0.18 ± 0.19 | 0.1365 |
| Others_4 | 0.11 ± 0.20 | 0.18 ± 0.23 | 0.0964 |
| (Branched C16:0_2) | 0.09 ± 0.16 | 0.12 ± 0.17 | 0.3721 |
| (C26:0) | 0.07 ± 0.15 | 0.09 ± 0.14 | 0.5248 |
| (Branched C25:0) | 0.04 ± 0.13 | 0.04 ± 0.10 | 0.9482 |
| (C19:0) | 0.03 ± 0.08 | 0.07 ± 0.12 | 0.0629 |
| (Branched C13:0_2) | 0.03 ± 0.08 | 0.03 ± 0.07 | 0.9727 |
| Others_1 | 0.03 ± 0.07 | 0.04 ± 0.09 | 0.2804 |
| (Branched C16:0_1) | 0.02 ± 0.05 | 0.02 ± 0.06 | 0.6507 |
| (C25:0) | 0.01 ± 0.05 | 0.03 ± 0.07 | 0.1634 |
| (Branched C13:0_1) | 0.01 ± 0.05 | 0.02 ± 0.07 | 0.4160 |
| C23:0 | 0.01 ± 0.03 | 0.01 ± 0.03 | 0.7156 |
| (Branched C15:1) | 0.01 ± 0.03 | 0.00 ± 0.00 | 0.0624 |
| Others_2 | 0.01 ± 0.03 | 0.00 ± 0.00 | 0.1292 |
The proportion of each free fatty acid was calculated by regarding the total free fatty acid level as 100%. The data are means ± standard deviations. p-values were calculated using Student’s t-test.