The combined effect of physical activity and sedentary behavior on subclinical atherosclerosis: a cross-sectional study among Mexican Americans

Table 2 Unadjusted and adjusted multivariable models with 4-category physical activity variable and TV/movie related sitting time

	Mean difference of cIMT (95% CI)	cIMT ≥75% (OR, 95% CI)	Presence of Plaque (OR, 95% CI)
Physical Activity (referent = no activity)^a
Low Activity	−0.04 (− 0.08–0.001)	0.51 (0.18–1.47)	0.64 (0.31–1.31)
Moderate Activity	− 0.05 (− 0.08--0.01)*	0.64 (0.31–1.30)	0.33 (0.17–0.63)*
High Activity	− 0.06 (− 0.09--0.03)*	0.96 (0.53–1.73)	0.42 (0.22–0.77)*
TV/Movie Sitting Time (hrs/day)	0.001 (− 0.01–0.01)	1.06 (0.93–1.20)	1.14 (1.01–1.27)*
Physical Activity (referent = no activity)^b
Low Activity	−0.02 (− 0.04–0.01)	0.53 (0.18–1.54)	0.74 (0.34–1.62)
Moderate Activity	− 0.02 (− 0.05–0.01)	0.69 (0.34–1.40)	0.35 (0.16–0.74)*
High Activity	− 0.01 (− 0.04–0.02)	1.10 (0.58–2.08)	0.60 (0.30–1.22)
TV/Movie Sitting Time (hrs/day)	−0.002 (− 0.01–0.01)	1.02 (0.90–1.16)	1.10 (0.97–1.25)
Physical Activity (referent = no activity)^c
Low Activity	−0.002 (− 0.03–0.02)	0.51 (0.13–1.95)	0.94 (0.42–2.08)
Moderate Activity	−0.009 (− 0.04–0.02)	0.87 (0.42–1.81)	0.35 (0.16–0.76)*
High Activity	− 0.009 (−0.04–0.02)	1.40 (0.73–2.68)	0.60 (0.28–1.26)
TV/Movie Sitting Time (hrs/day)	−0.002 (− 0.01–0.005)	0.97 (0.85–1.14)	1.10 (0.96–1.25)

a, unadjusted model (n = 612); b, adjusted for age and gender (n = 612); c, fully adjusted model
Fully adjusted mean cIMT model included age, gender, cholesterol, systolic blood pressure, diastolic blood pressure and HBA1c (n = 593)
Fully adjusted cIMT ≥75% model included age, gender, cholesterol, systolic blood pressure, heavy alcohol use, and HBA1c (n = 592)
Fully adjusted plaque model included age, gender, cholesterol, and systolic blood pressure (n = 607)
hrs/day is the weighted average of sitting on a typical weekday and weekend day
*, p < 0.05

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