Table 2.
Results of the multiple linear regression analyses that were conducted to examine the associations between MeanBTP or MaxBTP (dependent variables) and depression (in the whole sample only), age, sex, systolic blood pressure (SBP) and diastolic blood pressure (DBP) (independent variables) across the whole sample and within depressed and control subgroups. MDE: major depressive episode; MADRS: Montgomery–Åsberg Depression Rating Scale; BTP: brain tissue pulsations.
| whole sample (n = 123) | depressed sub-sample (n = 74) | controls sub-sample (n = 49) | ||||
|---|---|---|---|---|---|---|
| MeanBTP | MaxBTP | MeanBTP | MaxBTP | MeanBTP | MaxBTP | |
| depression | t = 2.685, p = 0.008 | t = 2.220, p = 0.028 | — | — | — | — |
| age | ß = 0.117, p = 0.907 | ß = −0.266, p = 0.003 | ß = 0.037, p = 0.777 | ß = −0.288, p = 0.018 | ß = −0.007, p = 0.958 | ß = −0.272, p = 0.049 |
| sex (male) | t = 2.697, p = 0.008 | t = 2.602, p = 0.010 | t = 1.474, p = 0.145 | t = 1.693, p = 0.095 | t = 2.108, p = 0.041 | t = 1.851, p = 0.071 |
| SBP | ß = 0.085, p = 0.563 | ß = 0.177, p = 0.194 | ß = −0.187, p = 0.342 | ß = 0.182, p = 0.309 | ß = 0.310, p = 0.210 | ß = 0.174, p = 0.459 |
| DBP | ß = −0.116, p = 0.431 | ß = −0.370, p = 0.008 | ß = 0.048, p = 0.818 | ß = −0.331, p = 0.082 | ß = −0.213, p = 0.343 | ß = −0.432, p = 0.048 |