Research Article
Low Diastolic Blood Pressure as a Risk for All-Cause Mortality in VA Patients
Table 2
Characteristics of patients after matching on propensity score*.
| | Characteristic | Patient with DBP <70
() | Patients with DBP ≥70
() | P value |
| | Age (yr) | 68.9 ± 9.7 | 67.8 ± 9.4 | <0.001 | | Comorbidities | | | | | Hypertension | 3001 (67.8) | 2940 (66.4) | 0.168 | | Diabetes | 1403 (31.7) | 1314 (29.7) | 0.040 | Chronic kidney
disease | 321 (7.2) | 294 (6.6) | 0.259 | Cerebrovascular
disease | 425 (9.6) | 424 (9.6) | 1.000 | Coronary artery
disease | 985 (22.2) | 832 (18.8) | <0.001 | | Systolic blood pressure | 125 ± 14 | 127 ± 12 | <0.001 | | Diastolic blood pressure | 62 ± 6 | 77 ± 5 | <0.001 | | Pulse pressure | 62 ± 14 | 50 ± 12 | <0.001 | | Number of antihypertensives | 1.1 ± 1.1 | 1.1 ± 1.1 | 0.064 | | Number of antihypertensives | | | 0.123 | | 0 | 1693 (38.2) | 1722 (38.9) | | | 1 | 1193 (26.9) | 1263 (28.5) | | | 2 | 985 (22.2) | 937 (21.2) | | | 3 | 433 (9.8) | 386 (8.7) | | | 4 | 100 (2.3) | 107 (2.4) | | | 5 | 22 (0.5) | 11 (0.2) | | | 6 | 2 (0) | 2 (0) | | | Medications by class | | | | | Beta blocker | 1149 (25.9) | 1094 (24.7) | 0.179 | | Alpha blocker | 681 (15.4) | 643 (14.5) | 0.257 | | ACE-I /ARB | 1913 (43.2) | 1828 (41.3) | 0.067 | Calcium channel
blocker | 675 (15.2) | 634 (14.3) | 0.220 | | Thiazide diuretic | 1029 (23.2) | 1038 (23.4) | 0.821 | | Loop diuretic | 334 (7.5) | 284 (6.4) | 0.037 | | All-cause mortality | 367 (8.3) | 244 (5.5) | <0.0001 |
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DBP: diastolic blood pressure; ACE-I: angiotensin converting enzyme inhibitors; ARB: angiotensin receptor blockers.
Values reported as (%) or means ± SD.
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