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Table 1 Anthropometric characteristics and values of casual blood pressure, ambulatory BP and of biochemical data in individuals classified as WCH and HTs

From: Diagnostic value and cost-benefit analysis of 24 hours ambulatory blood pressure monitoring in primary care in Portugal

  WCH (n = 130) HTs (n = 206) p
Age (years) 50 ± 14 52 ± 14 0.27
Women (%) 68 51 <0.05
BMI (kg/m 2 ) 26 ± 4 27 ± 4 0.35
BMI >29.9 Kg/m2 (%) 18 23 0.32
Smokers (%) 14 24 <0,01
Dyslipidemia (%) 38 47 <0.05
Diabetes (%) 2.3 3.9 0.19
Family history of CV disease (%) 13 20 0.23
Office SBP (mm Hg) 154 ± 12 161 ± 15 <0,001
Office DBP (mm Hg) 92 ± 10 94 ± 9 <0,05
24 h SBP (mm Hg) 120 ± 6 135 ± 10 <0,001
24 h DBP (mm Hg) 73 ± 5 85 ± 7 <0,001
24 h PP (mm Hg) 47 ± 6 51 ± 9 <0,001
24 h Heart rate (beats/min) 73 ± 9 77 ± 9 <0,001
Daytime SBP (mm Hg) 124 ± 6 140 ± 10 <0,001
Daytime DBP day (mm Hg) 77 ± 5 89 ± 8 0.052
Nighttime SBP (mm Hg) 113 ± 8 126 ± 12 <0,001
Nighttime DBP day (mm Hg) 66 ± 6 76 ± 8 <0,001
Nocturnal SBP fall (%) 8,7 ± 5,6 10,1 ± 5,6 <0,05
Inverted-dipper (%) 2 4 0.44
Non-dipper (%) 43 46 0.62
Dipper (%) 46 47 0.71
Extreme-dipper (%) 9 3 0.11
SBP on awakening (mm Hg) 116 ± 15 134 ± 17 <0,001
Total Cholesterol (mg/dl) 216 ± 37 220 ± 39 0.12
HDL-C (mg/dl) 58 ± 15 54 ± 17 0.14
Tryglicerides (mg/dl) 128 ± 83 160 ± 124 <0,05
Glicemia (mg/dl) 95 ± 19 101 ± 26 0.09
numRF (n) 1,15 ± 0,90 1,44 ± 0,98 <0,05
  1. Values expressed as average ± standard deviation.
  2. WCH White Coat Hypertensive, HTS Sustained Hypertensive, BMI Body Mass Index, SBP Systolic blood pressure, DBP Diastolic blood pressure, HR heart rate; PP Pulse Pressure, numRF Number of risk factors, p level of significance.