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Table 1 Participants characteristics in KNHANES 2014 to 2017

From: Trends in measures of handgrip strength from 2014 to 2017 among Korean adolescents using the Korean National Health and Nutrition Examination Survey Data

  Total (n = 2304) 2014 (n = 483) 2015 (n = 574) 2016 (n = 634) 2017 (n = 613) B coefficient P for trend
Age (year) 14.41 ± 0.06 14.28 ± 0.14 14.41 ± 0.13 14.47 ± 0.10 14.49 ± 0.14 0.067 0.272
SBP (mmHg) 108.54 ± 0.26 108.06 ± 0.61 108.90 ± 0.49 109.14 ± 0.53 108.05 ± 0.49 0.008 0.975
DBP (mmHg) 66.41 ± 0.22 65.70 ± 0.50 66.31 ± 0.40 66.94 ± 0.41 66.67 ± 0.47 0.349 0.098
Height (cm) 162.12 ± 0.28 161.69 ± 0.64 161.80 ± 0.53 162.32 ± 0.50 162.66 ± 0.50 0.343 0.180
Weight (kg) 56.08 ± 0.36 55.63 ± 0.86 57.14 ± 0.67 55.58 ± 0.68 55.96 ± 0.65 − 0.069 0.838
Waist (cm) 71.05 ± 0.26 70.47 ± 0.55 72.73 ± 0.49 70.91 ± 0.49 70.09 ± 0.51 − 0.319 0.188
BMI (z-score) 0.12 ± 0.32 0.10 ± 0.06 0.30 ± 0.68 0.01 ± 0.06 0.05 ± 0.06 0.117 0.115
WtHR 43.83 ± 0.14 43.55 ± 0.28 44.97 ± 0.28 43.69 ± 0.27 43.10 ± 0.28 − 0.280 0.028
Glucose (mg/dL) 91.85 ± 0.23 92.33 ± 0.67 91.88 ± 0.34 91.82 ± 0.36 91.37 ± 0.41 − 0.293 0.218
Cholesterol (mg/dL) 162.27 ± 0.66 157.52 ± 1.37 161.59 ± 1.23 164.01 ± 1.31 165.95 ± 1.35 2.755 < 0.001
TG (mg/dL) 86.08 ± 1.29 85.52 ± 2.95 88.29 ± 2.69 84.89 ± 2.26 85.61 ± 2.41 − 0.337 0.777
AST (U/L) 19.36 ± 0.23 18.87 ± 0.39 19.82 ± 0.66 19.14 ± 0.34 19.60 ± 0.40 0.143 0.438
ALT (U/L) 15.73 ± 0.46 14.87 ± 0.74 16.36 ± 1.22 15.55 ± 0.70 16.12 ± 0.94 0.284 0.465
  1. Data presented as mean ± standard error with weighting of survey design
  2. SBP systolic blood pressure, DBP diastolic blood pressure, BMI body mass index, WtHR waist to height ratio(waist(cm)/height(cm) × 100), TG triglyceride, AST aspartate aminotransferase, ALT alanine aminotransferase