International Journal of Hypertension / 2013 / Article / Tab 1

Research Article

Low Diastolic Blood Pressure as a Risk for All-Cause Mortality in VA Patients

Table 1

Characteristics of patients, according to diastolic blood pressure before matching*.

CharacteristicPatients with DBP <70
( )
Patients with DBP ≥70
( )
P value

Age (yr)70.7 ± 9.664.6 ± 9.5<0.001
Comorbidities
 Hypertension4275 (69.2)5243 (64.8)<0.001
 Diabetes2201 (35.6)2006 (24.8)<0.001
 Chronic kidney
 disease
595 (9.6)393 (4.9)<0.001
 Cerebrovascular
 disease
717 (11.6)607 (7.5)<0.001
 Coronary artery
 disease
1623 (26.3)1164 (14.4)<0.001
Systolic blood pressure121 ± 15133 ± 15<0.001
Diastolic blood pressure61 ± 679 ± 7<0.001
Pulse pressure59 ± 1454 ± 14<0.001
Number of antihypertensives1.2 ± 1.21.0 ± 1.1<0.001
Number of antihypertensives<0.001
 02182 (35.3)3483 (43)
 11697 (27.5)2228 (27.5)
 21409 (22.8)1598 (19.7)
 3684 (11.1)606 (7.5)
 4169 (2.7)156 (1.9)
 531 (0.5)22 (0.3)
 63 (0)2 (0)
Medications by class
 Beta blocker1732 (28)1828 (22.6)<0.001
 Alpha blocker1110 (18)885 (10.9)<0.001
 ACE-I/ARB2531 (47.1)2569 (36)<0.001
 Calcium channel
 blocker
1032 (16.7)957 (11.8)<0.001
 Thiazide diuretic1402 (22.7)2000 (24.7) 0.006
 Loop diuretic635 (10.3)358 (4.4)<0.001
All-cause mortality617 (10)399 (4.9)<0.001

DBP: diastolic blood pressure; ACE-I: angiotensin converting enzyme inhibitors; ARB: angiotensin receptor blockers.
Values reported as (%) or means ± SD.

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