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Table 1 Baseline characteristics of the study participants (n=1128)

From: Long-term effects of fine particulate matter exposure on the progression of arterial stiffness

Characteristic Distribution
annual average PM2.5 concentration (μg/m3) median (IQR) 76.44 (6.63)
Age (year) median (IQR) 56 (15)
Gender (female) n(%) 227 (20.12)
Education n(%)
 Middle school or below 40 (3.55)
 High school 98 (8.69)
 Bachelor’s degree 758 (67.20)
 Master’s or above 232 (20.57)
Physical activity n(%)
 Low intensity 773 (68.53)
 Moderate intensity 262 (23.23)
 High intensity 93 (8.24)
Alcohol consumption n(%) 400 (35.46)
Cigarette smoking n(%) 302 (26.77)
HDL-C (mmol/L) median (IQR) 1.24 (0.42)
LDL-C (mmol/L) median (IQR) 3.03 (1.02)
BMI (kg/m2) mean (SD) 25.59 (3.06)
TG (mmol/L) median (IQR) 1.31 (0.92)
Hypertension n(%) 566 (50.18)
Diabetes n(%) 339 (30.05)
  1. IQR Interquartile range, HDL-C High-density lipoprotein cholesterol, LDL-C Low-density lipoprotein cholesterol, BMI Body mass index, SD Standard error, TG Triglyceride