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Table 1 Normal BP index (BP index <1.0) vs high BP index (BP index ≥1.0)

From: Left ventricular hypertrophy and diastolic function in children and adolescents with essential hypertension

  BP index <1.0 BP index ≥1.0 p value
N 9 29  
Age (year) 15.0 ± 2.6 15.7 ± 2.0 0.624
BMI 20.2 ± 2.7 26.3 ± 5.3 0.001
BP index 0.94 ± 0.06 1.11 ± 0.09 <0.001
BP load (day) (%) 19.6 ± 17.9 81.2 ± 20.5 <0.001
Night dip (%) 7.0 ± 5.4 8.5 ± 4.2 0.164
Daytime average SBP 125.9 ± 7.4 151.1 ± 11.6 <0.001
Night time average SBP 117.0 ± 7.7 139.9 ± 13.9 <0.001
LVMI (g/m2.7) 32.2 ± 8.1 40.7 ± 9.8 0.016
LVMI (g/m2) 73.2 ± 17.6 84.2 ± 16.8 0.032
LVH (N) (%) 0 (0 %) 5 (19.2) 0.297
E/E’ 7.6 ± 2.5 7.1 ± 2.2 0.583
E/A 1.9 ± 0.5 1.9 ± 0.7 0.854
Tei index 0.3 ± 0.1 0.3 ± 0.1 0.929
  1. Test method = Mann-Whitney U test
  2. N sampler number, BMI body mass index, BP index blood pressure index, BP load (day) blood pressure load during daytime, LVMI left ventricular mass index, LVH left ventricular hypertrophy, E/E’ early transmitral filling velocity/early diastolic tissue velocity at septal mitral annulus, E/A early transmitral filling velocity/late transmitral filling velocity