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Table 3 Results of ANOVA and ANCOVA analyses among teenagers

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

  T1: 1.2-7.3 T2: 7.4-10.0 T3: 11.0-26.0  
BP and resting HR Adjusted means ± SEM & p trend
SBP (mm Hg) 109 ± 2.9 112 ± 2.8 113 ± 2.9 0.38
DBP (mm Hg) 71 ± 2.4 72 ± 2.3 74 ± 2.3 0.49
PP (mm Hg) 37 ± 2.2 40 ± 2.1 38 ± 2.2 0.66
Resting HR (bpm) 77 ± 2.6 72 ± 2.5 74 ± 2.6 0.47
  T1: 1.2-7.4 T2: 7.9-10.0 T3: 11.0-26.0  
HRV variables Adjusted means ± SEM &  
LF (ms2)* 788 ± 1.2 863 ± 1.2 614 ± 1.2 0.21
LF norm (nu)* 69 ± 1.9 69 ± 1.9 74 ± 1.8 a 0.08
HF (ms2)* 344 ± 1.2 380 ± 1.2 204 ± 1.2 a 0.07
HF norm (nu)* 31 ± 1.9 31 ± 1.9 26 ± 1.8 0.08
LF/HF* 2.3 ± 1.1 2.3 ± 1.1 3.0 ± 1.1 a 0.08
SDNN (ms)* 89 ± 1.1 92 ± 1.1 82 ± 1.1 0.44
SDANN (ms)* 54 ± 1.1 57 ± 1.1 52 ± 1.1 0.77
rMSSD (ms)* 37 ± 1.1 43 ± 1.1 30 ± 1.1a 0.11
  1. SEM: standard error of the mean. * Log-transformed variables. &Models were adjusted for age, sex, waist circumference, fasting glucose, triglycerides, selenium and total n-3 PUFAs. Letters indicate significant differences at p < 0.05. a Difference between T2 and T3.