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Table 1 Baseline characteristics of Kailuan I study (training dataset) and Kailuan II study (validation dataset) participants with low-density lipoprotein cholesterol concentrations < 70 mg/dL

From: The risk of ischemic stroke and hemorrhagic stroke in Chinese adults with low-density lipoprotein cholesterol concentrations < 70 mg/dL

  Training dataset (Kailuan I study) Validation dataset (Kailuan II study)
Number 9327 1753
Age, years 57.3 ± 13.7a 43.6 ± 15.1
Men, % 78.8 70.3
BMI, kg/m2 24.2 ± 3.39 23.8 ± 3.51
TG, mg/dL 144.4 ± 144.1 170.3 ± 186.5
LDL-C, mg/dL 55.6 ± 12.6 57.4 ± 10.4
HDL-C, mg/dL 58.5 ± 17.5 53.4 ± 15.7
HR, bpm 73.6 ± 9.48 74.1 ± 8.80
eGFR, ml/min/1.73 m2 88.4 ± 19.0 97.8 ± 21.9
hs-CRP, mg/Lb 0.48 ± 1.29 0.47 ± 1.04
Urine protein
 Negative 89.8 88.8
 Trace 6.28 3.04
 + 2.38 6.55
 ++ 1.05 1.17
 +++ 0.54 0.47
Physical activity, %
 Inactive 5.41 24.1
 Moderately active 81.7 60.0
 Vigorously active 12.9 15.9
Current smoker, % 28.8 39.5
Current drinker, % 31.1 39.4
Blood pressure control, %
 Well-controlled 63.9 70.4
 Poorly controlled 36.1 29.6
Blood glucose control, %
 Well-controlled 91.8 92.7
 Poorly controlled 8.26 7.26
  1. Abbreviations: BMI, body mass index; TG, triglyceride; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol; HR, heart rate; eGFR, estimated glomerular filtration rate; hs-CRP, high-sensitivity C-reactive protein
  2. aMean ± standard deviation
  3. bhs-CRP was log-transformed