From: Differential effects of dietary supplements on metabolomic profile of smokers versus non-smokers
Skin aging parameter | Overall (N = 28) | Non-smokers (N = 17) | Smokers (N = 11) | ||||||
---|---|---|---|---|---|---|---|---|---|
 | Mean | SD | P | Mean | SD | P | Mean | SD | P |
Wrinkling | +0.036 | 14.046 | 0.99 | -4.882 | 11.050 | 0.09 | +6.615 | 14.239 | 0.12 |
Visible spots | +2.393 | 7.440 | 0.10 | +1.235 | 7.471 | 0.51 | +3.154 | 7.414 | 0.15 |
UV spots | -4.536 | 30.426 | 0.44 | +5.000 | 28.588 | 0.48 | -17.692 | 26.196 | 0.03 |
Pores | +2.857 | 9.099 | 0.11 | -0.235 | 7.496 | 0.90 | +6.385 | 9.341 | 0.03 |
Elasticity | +0.081 | 0.276 | 0.13 | +0.020 | 0.274 | 0.77 | +0.160 | 0.270 | 0.05 |
Transepidermal water loss (g/m2 h) | -0.807 | 6.674 | 0.53 | -0.941 | 5.459 | 0.487 | -0.600 | 8.515 | 0.82 |