Table 4.

The interaction between group (depressed/not depressed) and ApoE e (e4 or not) regarding systolic and diastolic BP

	Systolic BP (all patients) B (95% CI); P-value	Diastolic BP (all patients) B (95% CI); P-value	Systolic BP (patients not using antihypertensive drugs) B (95% CI); P-value	Diastolic BP (patients not using antihypertensive drugs) B (95% CI); P-value
Interaction group/ApoE e4	26.7 (10.0:43.4); P=0.002	12.4 (0.6:24.2); P=0.04	20.6 (5.3:35.9); P=0.009	8.8 (−3.0:20.6); P=0.1

Notes: The analysis was first done for all participants (first two columns). In the last two columns, those on antihypertensive drugs were excluded. Univariate analysis of variance with the interaction between groups (control or depression) and ApoE e4 (presence or absence).

Abbreviations: ApoE e4, Apolipoprotein E e4 allele; BP, blood pressure; CI, confidence interval.