Table 4. Intra-subject contrast test between clinical and biological variables.
| variables | F | p | η2 |
| PSS | 25.70 | 0.001 | 0.52 |
| STAI-E | 13.40 | 0.001 | 0.37 |
| STAI-R | 28.85 | 0.001 | 0.54 |
| BDI-II | 37.37 | 0.001 | 0.62 |
| GSRS-T | 49.80 | 0.001 | 0.68 |
| SF36-DC | 15.78 | 0.001 | 0.38 |
| SF36-PSC | 3.30 | 0.082 | 0.11 |
| SF36-MSC | 29.19 | 0.001 | 0.54 |
| AUCG | 55.96 | 0.001 | 0.65 |
| IL-1β | 58.64 | 0.001 | 0.66 |
| IL-8 | 53.31 | 0.001 | 0.68 |
| IL-12 | 45.84 | 0.001 | 0.62 |
| IL-6 | 45.32 | 0.001 | 0.66 |
| FNT-α | 33.95 | 0.001 | 0.58 |
| IFN-γ | 27.03 | 0.001 | 0.53 |
Note. (PSS) Perceived Stress Scale; (STAI) State-Trait Anxiety Inventory; (BDI-II) Beck Depression Inventory; (GSRS) Gastrointestinal Symptom Rating Scale; (SF-36) Short Form 36 Health Survey (BP) Body pain, (PSC) Physical Summation Component y (MSC) Mental Summation Component. (AUCG) Area under the curve with respect to the ground; (IL) Interleukin; (TNF-α) Tumor Neurotrophic Factor; (IFN-γ) Interferon gamma. The effect of the tobacco covariate on the results of the biological variables was controlled.