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Table 2 Parameter estimates for latent growth models of leisure-time physical activity (n = 145), transport-related physical activity (n = 146), and overall sedentary time (= 150)

From: The effect of mere measurement from a cardiovascular examination program on physical activity and sedentary time in an adult population

  Leisure-time physical activity Transport-related physical activity Overall sedentary time
(log MET-hours/week) (log MET-hours/week) (sqrt min/week)
Est. (SE) p-value Est. (SE) p-value Est. (SE) p-value
Fixed effects
 Intercept 2.84 (0.16) <.001 2.69 (0.14) <.001 49.36 (1.19) <.001
 Slope (0 to 1 month) 0.13 (0.16) .432 0.31 (0.14) .023 −1.96 (1.04) .060
 Slope (1 to 6 months) −0.06 (0.04) .156 −0.04 (0.04) .334 0.06 (0.28) .842
 Slope (6 to 12 months) 0.02 (0.04) .673 −0.00 (0.03) .951 − 0.52 (0.25) .037
 Slope (1 to 6 months × study group) 0.08 (0.05) .111 0.00 (0.05) .912 −0.23 (0.35) .521
 Slope (6 to 12 months × study group) −0.04 (0.05) .401 0.03 (0.05) .467 0.56 (0.35) .109
Random effects
 Intercept 0.90 (0.16)   0.85 (0.15)   7.89 (0.62)  
 Slope       
  1. Notes: MET metabolic equivalent of task, Est. estimate: mean (fixed effects), standard deviation (random effects: intercept, slope), SE standard error, × interaction term, − fixed at zero as indicated by likelihood ratio test
  2. All slopes are linear. Models were adjusted for time-invariant covariates: sex, age, and education