Table 3.
Demographic and Clinical Variables by Masked Hypertension
| Masked Hypertensiona (n=50) | Normotensiona (n=19) | P Valueb | |
|---|---|---|---|
| Age, y | 54±9 | 52±8 | .272 |
| Sex, male/female | 44/6 | 16/3 | .676 |
| BMI, kg/m2 | 27.3±3.3 | 26.8±2.4 | .544 |
| SBP, mm Hg | 132±8 | 129±7 | .277 |
| DBP, mm Hg | 82±5 | 81±6 | .326 |
| HR, beats per min | 73±11 | 78±12 | .176 |
| Risk factors | |||
| Diabetes mellitus, No. (%) | 3 (6) | 2 (10.5) | .517 |
| Hypercholesterolemia, No. (%) | 21 (42) | 10 (52.6) | .428 |
| Positive family history, No. (%) | 9 (18) | 6 (31.6) | .222 |
| Physical activity, No. (%) | 36 (72) | 15 (78.9) | .557 |
| Current smoking, No. (%) | 4 (8) | 2 (10) | |
| Past smokers, No. (%) | 25 (50) | 7 (37) | |
| Nonsmokers, No. (%) | 21 (42) | 10 (53) | .618 |
| Laboratory results | |||
| Serum glucose, mg/dL | 93±15 | 92±21 | .952 |
| Total cholesterol, mg/dL | 193±31 | 206±43 | .180 |
| HDL cholesterol, mg/dL | 48±13 | 52±12 | .365 |
| LDL cholesterol, mg/dL | 120±26 | 128±41 | .381 |
| Triglycerides, mg/dL | 122±58 | 143±54 | .190 |
| Serum creatinine, mg/dL | 1.06±0.13 | 1.08±0.17 | .620 |
| ExBPR, No. (%) | 29 (58) | 14 (73.7) | .276 |
Abbreviations: BMI, body mass index; DBP, diastolic blood pressure; ExBPR, exaggerated blood pressure response to exercise (SBP ≥200 mm Hg); HDL, high‐density lipoprotein; LDL, low‐density lipoprotein; SBP, systolic blood pressure. Normotension, average 24‐hour ambulatory BP <135/85 mm Hg during waking hours and/or 120/70 mm Hg during sleep hours. aMasked hypertension, average 24‐hour ambulatory BP ≥135/85 mm Hg during waking hours and/or 120/70 mm Hg during sleep hours. bBetween patients with masked hypertension and those with normotension.