Table 2. Unadjusted Population Characteristics for Primary Care Patients With Initial Use of Monotherapy Antihypertensive Agents by Therapeutic Class
CharacteristicsACEI (n = 3131)Thiazide (n = 1947)Cardioselective β-blocker (n = 1029)ARB (n = 533)CCB (n = 529)P*
Female sex, n (%)1442 (46.1)1248 (64.1)601 (58.4)275 (51.6)312 (59.0)<.001
Age at index (years)53.6 (13.0)52.6 (13.0)54.1 (14.4)55.2 (12.4)57.8 (14.7)<.001
BMI (kg/m2)30.9 (6.8)31.1 (7.3)28.9 (6.2)30.4 (6.1)29.7 (6.7)<.001
Index systolic BP (mm Hg)147.6 (15.0)149.3 (13.4)147.7 (15.4)147.8 (14.9)149.5 (15.7)<0.001
Index diastolic BP (mm Hg)90.1 (10.7)91.5 (10.1)90.1 (10.9)89.7 (10.4)89.4 (11.4)<.001
CKD, n (%)221 (7.1)127 (6.5)118 (11.5)52 (9.8)94 (17.8)<.001
Diabetes, n (%)789 (25.2)89 (4.6)75 (7.3)109 (20.5)29 (5.5)<.001
Hyperlipidemia, n (%)1177 (37.6)557 (28.6)296 (28.8)196 (36.8)155 (29.3)<.001
Hypertension, n (%)1902 (60.8)1335 (68.6)506 (49.2)258 (48.4)279 (52.7)<.001
Follow-up duration (months)6.5 (3.8)5.9 (3.9)6.3 (3.9)6.2 (3.8)6.4 (4.0)<.001
Number of clinic visits3.8 (3.2)3.9 (3.2)4.2 (4.0)3.6 (3.4)4.3 (3.8)<.001
  • Data are mean (standard deviation) unless otherwise indicated.

  • * P values were from analysis of variance (ANOVA) or logistic regression and test the overall effect across the five therapeutic classes.

  • ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin II receptor blocker; BMI, body mass index; BP, blood pressure; CCB, calcium channel blocker; CKD, chronic kidney disease; thiazide, thiazide and thiazide-like diuretics.