Table 4.

Pearson correlation between cerebral structure changings and demographic variables.

	Age	Hospital stays	Age of surgery	Postoperative time	Preoperative SpO2	Preoperative SBP	Preoperative DBP	Preoperative pH	CPB time	AO time
CSFV	0.365	0.322	0.771*	−0.346	0.653	0.206	0.350	0.103	−0.098	−0.592
GMV	−0.446	−0.462	0.283	−0.534	0.704	0.259	0.006	0.168	−0.190	−0.208
WMV	−0.228	−0.282	0.320	−0.410	0.633	0.245	−0.235	−0.138	−0.201	−0.053
BTV	−0.363	−0.396	0.309	−0.496	0.695	0.261	−0.102	0.036	−0.201	−0.145
TIV	−0.109	−0.160	0.635	−0.572	0.887**	0.313	0.093	0.081	−0.211	−0.413
Whole brain CAT	−0.446	0.258	−0.213	−0.147	−0.146	0.018	0.585	0.584	−0.028	−0.372
Left inferior temporal CAT	0.138	−0.729	−0.553	0.528	−0.124	−0.070	−0.179	0.350	0.568	0.241
Left lateral occipital CAT	−0.003	0.567	0.155	−0.123	−0.344	−0.012	−0.134	−0.722	−0.383	0.285
Left middle temporal CAT	0.375	0.473	0.156	0.141	−0.178	−0.537	0.126	0.579	−0.049	−0.486
Left fusiform CAT	0.092	−0.184	−0.066	0.116	0.083	0.764*	0.816*	−0.165	0.526	0.033
Left isthmus cingulate CAT	0.074	−0.190	0.708	−0.500	0.929**	0.198	0.471	0.598	−0.032	−0.779*
Left precuneus CAT	−0.174	−0.288	−0.310	0.119	−0.143	−0.072	0.428	0.632	0.260	−0.197
Right superior frontal CAT	−0.227	0.272	0.082	−0.224	0.143	0.467	0.881**	0.279	0.118	−0.409
Right caudal middle frontal CAT	−0.388	0.115	−0.135	−0.167	0.123	0.250	0.742	0.671	0.140	−0.486

^*Correlation is significant at the 0.05 level.

^**Correlation is significant at the 0.01 level. CSFV, cerebrospinal fluid volume; GMV, gray matter volume; WMV, white matter volume; BTV, brain tissue volume; TIV, total intracranial volume; CAT, cortical average thickness; SpO₂, saturation of pulse oxygen; SBP, systolic blood pressure; DBP, diastolic blood pressure; pH, potential of hydrogen; CPB, cardiopulmonary bypass; AO, aortic occlusion. Bold values represents that the results have statistical significance.