Table 3.
Differences in CIMT associated with occupational sitting (upper panel) and occupational standing (lower panel) categories
| Occupational sitting | ||||||
|---|---|---|---|---|---|---|
| Never or seldom | Sometimes | Often or always | ||||
| (n = 945) | (n = 988) | (n = 1477) | P1 | P2 | P-Trend | |
| CIMT (mm) | 0.728 ± 0.187 | 0.706 ± 0.174 | 0.711 ± 0.183 | |||
| Unadjusted | 1 (ref) | −0.022 ± 0.008 | −0.017 ± 0.008 | 0.009 | 0.029 | 0.049 |
| Model 1 | 1 (ref) | −0.021 ± 0.009 | −0.020 ± 0.008 | 0.021 | 0.017 | 0.027 |
| Model 2 | 1 (ref) | −0.021 ± 0.009 | −0.019 ± 0.008 | 0.020 | 0.020 | 0.031 |
| Model 3 | 1 (ref) | −0.021 ± 0.009 | −0.019 ± 0.008 | 0.019 | 0.021 | 0.033 |
| Model 4 | 1 (ref) | −0.021 ± 0.009 | −0.019 ± 0.008 | 0.019 | 0.021 | 0.033 |
| Model 5 | 1 (ref) | −0.021 ± 0.009 | −0.018 ± 0.008 | 0.020 | 0.026 | 0.042 |
| Occupational standing | ||||||
| Never or seldom | Sometimes | Often or always | ||||
| (n = 537) | (n = 1153) | (n = 1720) | P1 | P2 | P-Trend | |
| CIMT (mm) | 0.716 ± 0.188 | 0.716 ± 0.182 | 0.712 ± 0.180 | |||
| Unadjusted | 1 (ref) | 0.000 ± 0.009 | −0.004 ± 0.009 | 0.995 | 0.617 | 0.520 |
| Model 1 | 1 (ref) | 0.006 ± 0.010 | 0.005 ± 0.010 | 0.543 | 0.598 | 0.699 |
| Model 2 | 1 (ref) | 0.006 ± 0.010 | 0.005 ± 0.010 | 0.563 | 0.637 | 0.741 |
| Model 3 | 1 (ref) | 0.006 ± 0.010 | 0.005 ± 0.010 | 0.593 | 0.631 | 0.717 |
| Model 4 | 1 (ref) | 0.005 ± 0.010 | 0.005 ± 0.010 | 0.601 | 0.643 | 0.730 |
| Model 5 | 1 (ref) | 0.006 ± 0.010 | 0.004 ± 0.010 | 0.584 | 0.658 | 0.758 |
Data presented as mean ± standard deviation or unadjusted/adjusted mean difference compared to referent group (<2 h/day) ± standard error
P1 = Sometimes vs. Never of Seldom; P2 = Often or Always vs. Never or Seldom
CIMT carotid intima-media thickness
Model 1: Adjusted for age and sex
Model 2: Adjusted for covariates in model 1 plus education < high school, income < $50,000, fulltime employment, heavy alcohol drinking, current smoking, energy intake, history of myocardial infarction, and statin use
Model 3: Adjusted for covariates in model 2 plus diabetes, hypertension, BMI, total cholesterol, HDL cholesterol, LDL cholesterol, and estimated glomerular filtration rate <60 ml/min/1.73 m2
Model 4: Adjusted for covariates in model 3 plus levels of moderate to vigorous physical activity (poor, intermediate, or ideal)
Model 5: Adjusted for covariates in model 4 plus television viewing category (<2, 2–4, or >4 h/day)