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Table 4 Association of current smoking with baseline and progression of overall IMT and IMT components compared to former smokers*

From: Smoking status and common carotid artery intima-medial thickness among middle-aged men and women based on ultrasound measurement: a cohort study

  Baseline Progression
  Current smoker Former Smoker Difference p value Current smoker Former smoker Difference P value
Women (N = 89)         
Intima-medial thickness(μm) 685.8 ± 38.4 687.2 ± 29.0 -1.4 ± 24.3 0.95 6.8 ± 8.9 4.9 ± 7.1 1.9 ± 5.4 0.72
Echogenic layer (μm) 360.3 ± 34.6 301.6 ± 26.0 58.6 ± 22.2 0.01 1.6 ± 13.3 20.1 ± 10.3 -18.5 ± 8.4 0.03
Echolucent layer (μm) 341.6 ± 38.9 391.6 ± 29.2 -50.1 ± 24.9 0.048 -6.1 ± 12.2 -18.4 ± 9.4 12.3 ± 7.8 0.12
Men (N = 143)         
Intima-medial thickness(μm) 764.4 ± 33.3 718.2 ± 26.1 46.2 ± 18.6 0.01 10.0 ± 7.1 9.2 ± 5.6 0.8 ± 4.1 0.84
Echogenic layer (μm) 356.7 ± 37.3 314.4 ± 29.9 42.3 ± 21.1 0.047 16.9 ± 9.1 16.8 ± 7.5 0.1 ± 5.4 0.98
Echolucent layer (μm) 406.9 ± 27.8 404.3 ± 22.5 2.6 ± 15.8 0.87 -6.7 ± 10.8 -9.5 ± 8.8 2.8 ± 6.3 0.66
  1. * Data are presented as least-square mean ± standard error. The parameter estimates were obtained from individual growth models among smokers, adjusted for age, body height, race/ethnicity, and cigarette pack-yrs.