TABLE 3.

Linear regression model predicting WML volume in the HTN group at baseline (log transformed data: log(WML volume))

	Variable	Unstandardized coefficient B	Standardized β	P-value
Main effects	Age	0.014	0.30	<0.001
	SBP	−0.02741	−1.57	0.023
Quadratic term	SBP × SBP	0.00011	1.79	0.009

Critical value (Eq. [2]): x = –(−0.02741/(2 × 0.00011)) = 124.6 mmHg.

HTN, hypertension; WML, white matter lesion.