Analysis of the relationship between blood pressure variability and subtle cognitive decline in older adults

Table 3 Logistic regression analysis influencing factors of cognitive impairment

Index	β	SE	Wald	P value	OR	95%CI
Age	0.37	0.09	17.59	0.000	1.63	1.45-1.81
Education	0.75	0.13	20.31	0.000	1.92	1.75-2.31
Diabetes	0.11	0.03	13.27	0.000	1.21	1.09-1.37
SBP SD	1.31	0.24	26.15	0.000	3.95	2.57-4.72
SBP CV	0.95	0.21	30.63	0.000	3.71	2.69-4.63
DBP SD	2.47	0.61	8.59	0.023	9.72	3.51-18.95
DBP CV	0.85	0.19	27.33	0.002	3.01	2.65-3.91

SBP SD: 24-h systolic blood pressure standard deviation; SBP CV: 24-h systolic blood pressure coefficient of variation; DBP SD: 24-h diastolic blood pressure standard deviation; DBP CV: 24-h diastolic blood pressure coefficient of variation.