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Table 2 Blood pressure (BP), resting heart rate (HR) and heart rate variability (HRV) among adults and teenagers

From: Influence of mercury exposure on blood pressure, resting heart rate and heart rate variability in French Polynesians: a cross-sectional study

Dependent variables Teenagers (12-17 years old) Adults (≥ 18 years old)
  Mean (SD or 95% CI) Median (25th-75th percentiles) Mean (SD or 95% CI) Median (25th -75th percentiles)
SBP (mm Hg) 111 (14) 110 (100-120) 133 (22) 130 (120-140)
DBP (mm Hg) 74 (11) 70 (65-80) 84 (15) 81 (75-90)
PP (mm Hg) 38 (12) 39 (30-45) 49 (16) 48 (40-58)
Resting HR (bpm) 74 (12) 72 (66-84) 67 (11) 66 (60-72)
LF (ms2)* 771 (674-883) 711 (523-1250) 374 (312-447) 435 (211-824)
LF norm (nu) 70.6 (9.0) 70.6 (63.8-77.7) 72.7 (11.9) 74.7 (66.7-81.5)
HF (ms2)* 303 (251-367) 338 (162-641) 129 (108-154) 138 (75-262)
HF norm (nu) 29.4 (9.0) 29.4 (22.3-36.2) 27.3 (11.9) 25.3 (18.5-33.3)
LF/HF* 2.54 (2.32-2.79) 2.40 (1.76-3.48) 2.89 (2.61-3.22) 2.95 (2.00-4.41)
SDNN (ms)* 89 (84-95) 88 (71-108) 80 (76-84) 83 (67-102)
SDANN (ms)* 56 (52-60) 56 (44-72) 53 (50-56) 56 (42-71)
rMSSD (ms)* 36 (33-39) 36 (27-49) 29 (27-31) 28 (21-39)
  1. * For variables not normally distributed, the geometric means and 95% confidence interval (CI) are presented; SD: standard deviation.