Table 3.

Multiple regression on baseline cognitive functioning predicting post-operative cortisol AUC (N = 131)

Model	B	SE	ß	95 % CI	P value
Step 1
Education	118.329	672.515	0.015	−1213.318–1449.976	0.861
Household income	174.029	242.522	0.064	−306.188–654.246	0.474
Smoking status	2582.061	1170.171	0.186	265.006–4899.116	0.029
BMI	125.660	92.776	0.123	−58.047–309.366	0.178
Baseline depression symptoms (BDI)	−58.117	52.412	−0.093	−161.899–45.665	0.270
Cardiopulmonary bypass	593.646	724.374	0.069	−840.686–2027.978	0.414
Number of grafts	−99.561	253.989	−0.033	−602.484–403.362	0.696
Chronic illness burden	150.842	670.022	0.024	−1175.868–1477.552	0.822
Diabetes	−258.176	983.143	−0.028	−2204.896–1688.545	0.793
EuroSCORE	405.255	114.325	0.338	178.880–631.630	0.001
Baseline cortisol AUC	0.401	0.119	0.293	0.166–0.637	0.001
Step 2
Education	−114.482	673.528	−0.015	−1448.250–1219.286	0.865
Household income	338.467	252.597	0.124	−161.744–838.678	0.183
Smoking status	2667.772	1155.725	0.192	379.121–4956.423	0.023
BMI	99.524	92.464	0.097	−83.580–282.627	0.284
Baseline depression symptoms (BDI)	−56.219	51.740	−0.090	−158.678–46.239	0.279
Cardiopulmonary bypass	492.464	716.679	0.057	−926.754–1911.683	0.493
Number of grafts	−162.305	252.570	−0.054	−662.462–337.852	0.522
Chronic illness burden	195.304	661.672	0.032	−1114.986–1505.595	0.768
Diabetes	−333.939	971.075	−0.036	−2256.932–1589.053	0.732
EuroSCORE	386.407	113.217	0.323	162.206–610.608	0.001
Baseline cortisol AUC	0.366	0.119	0.267	0.131–0.601	0.003
Baseline MoCA score	−1279.758	627.825	−0.179	−2523.023–−36.494	0.044

NB step 1 R ² = 0.229, step 2 R ² = 0.255, ∆R ² = 0.026, p = 0.044