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Table 2 Association between each PM10–2.5 and PM2.5 levels and changes in individual’s concentration of fasting glucose and lipid profiles

From: Exposure to ambient fine particulate matter is associated with changes in fasting glucose and lipid profiles: a nationwide cohort study

 Quartiles of PM10–2.5 levelsP for trends
Q1Q2Q3Q4
Mean level, μg/m3 ± SD17.59 ± 3.6721.92 ± 0.6624.34 ± 0.8328.14 ± 3.17 
Mean difference of individual’s concentration, mg/dL (95% CI)
 FBG0.9560.5881.2140.5980.429
(0.693–1.218)(0.318–0.857)(0.923–1.505)(0.322–0.875)
 TC0.4460.1750.3160.4080.998
(0.027–0.864)(−0.254–0.605)(− 0.147–0.779)(− 0.032–0.848)
 TG− 0.504− 0.322−0.7430.0230.620
(−1.518–0.510)(− 1.363–0.718)(−1.865–0.380)(− 1.044–1.090)
 HDL-C− 0.034−0.116− 0.350−0.1460.214
(−0.228–0.161)(− 0.315–0.083)(−0.565--0.135)(− 0.350–0.059)
 LDL-C0.6690.3610.5870.9070.360
(0.248–1.090)(−0.071–0.793)(0.122–1.052)(0.464–1.351)
 Quartiles of PM2.5 levelsP for trends
 Q1Q2Q3Q4
Mean level, μg/m3 ± SD21.78 ± 1.8324.97 ± 0.6226.89 ± 0.7030.98 ± 2.15 
Mean difference of individual’s concentration, mg/dL (95% CI)
 FBG0.5500.9750.6871.180*0.015
(0.283–0.816)(0.702–1.249)(0.422–0.953)(0.886–1.475)
 TC0.1920.460.0760.6960.312
(−0.232–0.616)(0.024–0.896)(−0.347–0.498)(0.227–1.166)
 TG−0.404−0.524− 0.235−0.3650.862
(−1.432–0.625)(−1.581–0.533)(−1.259–0.790)(− 1.505–0.774)
 HDL-C− 0.2190.026− 0.208− 0.2120.690
(−0.416--0.022)(− 0.176–0.229)(− 0.404--0.012)(−0.430–0.006)
 LDL-C0.3410.6180.3161.384*0.010
(− 0.086–0.768)(0.180–1.056)(− 0.109–0.741)(0.910–1.857)
  1. Note: Models were adjusted for age, sex, income level, smoking status, alcohol consumption status, BMI physical activity, and CCI score. PM10–2.5, particulate matter sized 2.5-10 μm in aerodynamic diameter, PM2.5 particulate matter with aerodynamic diameter ≤ 2.5 μm; n, number, SD standard deviation, CI confidential interval, FBG fasting blood glucose, TC total cholesterol, TG triglycerides, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol
  2. * P value < 0.05 of multiple regression for quartile 4 group, compared to quartile 1 group as a reference