Table 3.

Baseline characteristics by groupa

CharacteristicSustained Normotension(n = 95)Masked Hypertension(n = 20)White-Coat Hypertension(n = 39)Sustained Hypertension(n = 24)
Age37 ± 1144 ± 10e44 ± 1245 ± 12
Male gender38 (40)14 (70)e13 (33)6 (25)
Black race32 (33)6 (30)9 (23)9 (38)
Hispanic ethnicity38 (40)6 (30)7 (18)3 (13)
First-degree relative of recipient50 (53)7 (35)18 (46)10 (42)
Family history of hypertension67 (71)16 (80)28 (72)20 (83)
BMI27 ± 529 ± 428 ± 527 ± 4
Clinic SBP (mmHg)119 ± 11128 ± 6f142 ± 9145 ± 11
Clinic DBP (mmHg)75 ± 881 ± 6f88 ± 892 ± 8g
Serum creatinine (mg/dl)0.8 ± 0.20.9 ± 0.2e0.8 ± 0.10.8 ± 0.2
Creatinine clearance (ml/min)b129.1 ± 32.8131.1 ± 22.1115.3 ± 26.7114.6 ± 21.3
eGFR (ml/min per 1.73 m2)c110 ± 24100 ± 24101 ± 20105 ± 21
Microalbuminuriad7 (7)2 (10)3 (8)2 (8)
  • a Data are means ± SD or frequency (%). BMI, body mass index; DBP, diastolic BP; eGFR, estimated GFR; SBP, systolic BP.

  • b Calculated from 24-h urine collection.

  • c Calculated from simplified Modification of Diet in Renal Disease (MDRD) equation.

  • d Defined as urine microalbumin:creatinine ratio >30 mg/g.

  • e P < 0.05 for masked hypertension versus sustained normotension.

  • f P < 0.005 for masked hypertension versus sustained normotension.

  • g P < 0.05 for sustained hypertension versus white-coat hypertension.