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Table 1 Characteristics of the participants

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

Variables N Arithmetic mean (SD) Geometric mean Range
Age (years) 205 52.1 (28.3)   40 – 73
Gender (%) 205    
   Female   120 (58.6%)   
   Male   85 (41.5%)   
Mercury (nmol/L)§ 205 132.9 (329.8) 97.8 2.4 – 760.0
Fasting insulin (pmol/L)§ 203 68.9 (204.5) 52.1 13.0 – 448.0
Fasting glucose (mmol/L)§ 202 4.9 (3.7) 4.8 2.8 – 15.1
HOMA-IR § 201 16.9 (77.3) 11.0 1.9 – 244.3
Total-Cholesterol (mmol/L) 202 5.4 (2.8)   3.3 – 8.2
LDL-Cholesterol (mmol/L) 202 3.1 (2.7)   0.7 – 6.1
HDL-Cholesterol (mmol/L) 202 1.7 (1.6)   0.8 – 4.3
Triglycerides (mmol/L)§ 202 1.3 (2.4) 1.1 0.3 – 5.5
EPA (% fatty acids)§ 205 2.5 (4.2) 2.1 0.50 – 7.27
DHA (% fatty acids) 205 6.7 (5.1)   1.56 – 10.09
WC (cm) 204 96.0 (41)   66.0 – 136.0
Smoking habits (%) 198    
   Daily smoker   116 (59.0%)   
   Occasionally   7 (3.5%)   
   Not at all   75 (37.9%)   
Physical activity (kcal/kg/week) & 130 43.9 (186) 20.2 0 – 364
Total income (%) 169    
   Less than $20,000   80 (47.3%)   
   $20,000 to less than $40,000   46 (27.2%)   
   $40,000 to less than $60,000   31 (18.3%)   
   $60,000 or more   12 (7.1%)   
Alcohol consumption (%) 177    
   Yes   141 (79.7%)   
   No   36 (20.3%)   
  1. § Variables not normally distributed; HOMA-IR: insulin sensitivity; EPA: Eicosapentaenoic acid; DHA: Docosahexaenoic acid; WC: Waist circumference; LDL-cholesterol: Low density lipoprotein; HDL-cholesterol: high density lipoprotein;
  2. &Physical activity was calculated as: MET = duration*frequency*intensity of the exercise.