Table 2.

Bivariate analysis comparing subjects with visit-to-visit systolic BPV-SD in the 3^rd tertile to subjects in the 1^st tertile

Neurocognitive Variable (at most recent visit)	N	Systolic BP standard deviation			p-value (1st vs. 3rd)
		1st tertile	2nd tertile	3rd tertile
Matrix Reasoning	535	49.7 ± 10.5	48.7 ± 10.7	48.6 ± 10.1	0.31
GEC (parent or self)	622	53.1 ± 11.1	53.4 ± 12.4	52.5 ± 11.8	0.58
Errors of Commission	487	51.2 ± 12.2	51.2 ± 12.0	52.1 ± 11.3	0.46
Digit Span Forward	475	8.7 ± 2.9	8.4 ± 3.1	8.3 ± 2.9	0.28
Digit Span Reverse	475	9.5 ± 3.1	9.8 ± 3.3	9.1 ± 3.1	0.36
Letter Fluency	281	9.2 ± 3.4	9.4 ± 3.6	8.9 ± 3.2	0.55
Category Fluency	281	10.5 ± 3.4	10.6 ± 3.4	9.3 ± 3.9	0.03
Category Switching*	279	9.5 ± 2.8	9.4 ± 3.3	8.3 ± 3.0	0.006
Category Contrast**	279	−1.1 ± 3.4	−1.2 ± 3.4	−1.0 ± 3.5	0.92

Note. Matrix Reasoning, GEC, and Errors of Commission are reported in T-Scores with a Mean = 50 and a Standard Deviation of 10. For Matrix Reasoning higher scores reflect a better performance; for GEC and Errors of Commission higher scores reflect a worse performance. Digit Span and D-KEF tasks are reported in scaled scores with a Mean = 10 and a Standard Deviation of 3, with higher scores reflecting a more intact performance.

^*average of Accuracy and Total scaled scores.

^**Contrast = Switching Scaled Score – Fluency Scaled Score. BP: blood pressure, BPV-SD: standard deviation of visit BPs, GEC: Global Executive Composite