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Table 3 Results of simple and multivariable regression between mercury and HRV and BP parameters

From: Cardiac autonomic activity and blood pressure among Nunavik Inuit adults exposed to environmental mercury: a cross-sectional study

Mercury (nmol/L)§
HRV and BP parameters Simple analysis Multivariable analysis
  r Pearson Crude β (95% CI) Adjusted β (95% CI) Model R2
VLF (ms2)§ a -0.13 -0.12 (-0.26, 0.03) -0.06 (-0.20, 0.07) 0.12**
LF (ms2)§ b -0.18* -0.20* (-0.38, -0.03) -0.01 (-0.18, 0.16) 0.21***
HF (ms2)§ c -0.11 -0.12 (-0.27, 0.03) -0.01 (-0.17, 0.15) 0.17**
LF/HF § d -0.10 -0.22 (-0.51, 0.07) 0.01 (-0.33, 0.34) 0.24***
NN (ms) e 0.04 6.32 (-13.62, 26.27) -5.75 (-27.90, 16.41) 0.19***
SDNN (ms)§ f -0.14* -0.06* (-0.12, -0.001) -0.056 (-0.12, 0.01) 0.09**
SDANN (ms)§ g -0.09 -0.05 (-0.11, 0.01) -0.086* (-0.16, -0.01) 0.02
rMSSD (ms) § h -0.12 -0.06 (-0.12, 0.01) -0.03 (-0.09, 0.04) 0.12**
pNN50 (%) § i -0.12 -0.19 (-0.39, 0.02) -0.09 (-0.32, 0.13) 0.12*
CVRR (%) § j -0.18* -0.07* (-0.12, -0.01) -0.057 (-0.11, 0.001) 0.03*
SBP (mm Hg) k 0.25*** 5.20*** (2.70, 7.70) 4.77* (1.12 – 8.42) 0.27***
DBP (mm Hg) l 0.01 0.13 (-1.44, 1.71) 1.99 (-0.29, 4.29) 0.08*
PP (mm Hg) m 0.33*** 5.07*** (3.15 – 6.99) 3.40* (1.11 – 5.69) 0.41***
  1. * p < 0.05; ** p < 0.01; *** p < 0.0001; § Log-transformed variables; a model adjusted for HDL, WC and DHA; b model adjusted for smoking, DHA, triglycerides, EPA, WC, HOMA-IR and age; c model adjusted for smoking, triglycerides, EPA, alcohol, DHA, HOMA-IR, HDL, gender and WC; d model adjusted for alcohol, DHA, HDL, EPA, LDL, triglycerides, age, HOMA-IR, WC, gender and socio-economic status; e model adjusted for total income, EPA, smoking, gender, HOMA-IR, HDL and age; f model adjusted for EPA and HOMA-IR; g model adjusted for EPA; h model adjusted for smoking, HDL, DHA, WC and HOMA-IR; i model adjusted for smoking, HDL, HOMA-IR, DHA, age and WC; j model adjusted for EPA; k model adjusted for age, WC and selenium; l model adjusted for EPA, selenium and triglycerides; m model adjusted for selenium, WC and age.