Table 2.

Multiple regression on baseline cognitive functioning predicting post-operative IL-6 (N = 135)

Model	B	SE	ß	95 % CI	P value
Step 1
Education	2.056	6.725	0.028	−11.256–15.369	0.760
Household income	−2.876	2.115	−0.124	−7.063–1.310	0.176
Smoking status	−3.426	9.959	−0.031	−23.140–16.287	0.731
BMI	0.677	0.653	0.093	−0.616–1.970	0.302
Baseline depression symptoms (BDI)	0.003	0.417	0.001	−0.823–0.829	0.994
Cardiopulmonary bypass	1.764	6.764	0.024	−11.625–15.154	0.795
Number of grafts	−0.659	2.539	−0.023	−5.685–4.367	0.796
Chronic illness burden	−6.894	6.077	−0.141	−18.923–5.135	0.259
Diabetes	−2.414	8.973	−0.033	−20.176–15.348	0.788
EuroSCORE	−0.129	1.060	−0.012	−2.227–1.969	0.903
Baseline IL-6	4.841	1.672	0.265	1.531–8.150	0.004
Step 2
Education	3.131	6.622	0.042	−9.978–16.239	0.637
Household income	−1.467	2.163	−0.063	−5.748–2.814	0.499
Smoking status	−5.360	9.817	−0.049	−24.793–14.073	0.586
BMI	0.443	0.649	0.061	−0.843–1.728	0.497
Baseline depression symptoms (BDI)	−0.040	0.410	−0.009	−0.853–0.772	0.922
Cardiopulmonary bypass	2.061	6.645	0.028	−11.093–15.216	0.757
Number of grafts	−1.338	2.511	−0.048	−6.309–3.632	0.595
Chronic illness burden	−6.478	5.972	−0.133	−18.299–5.344	0.280
Diabetes	−2.212	8.814	−0.030	−19.660–15.237	0.802
EuroSCORE	−0.249	1.042	−0.022	−2.313–1.814	0.811
Baseline IL-6	4.974	1.643	0.273	1.721–8.227	0.003
Baseline MoCA score	−13.456	5.739	−0.212	−24.818–−2.094	0.021

NB step 1 R ² = 0.107, step 2 R ² = 0.145, ∆R ² = 0.039, p = 0.021