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Table 2 Secular trends of physical activity in intervention (n = 2973) and control (n = 3086) groups1

From: Effectiveness of the physical activity intervention program in the PREDIMED-Plus study: a randomized controlled trial

  Baseline 6 months 12 months p 2 p 3
Total PA (METs min/day)
 -Intervention
  Absolute values 228 (0.48) 338 (0.48) 359 (0.48) < 0.001 < 0.001
  Relative change Ref. 1.06 (1.03 to 1.10) 1.57 (1.51 to 1.64)   
 -Control
  Absolute values 247 (0.52) 262 (0.52) 277 (0.52) < 0.001  
  Relative change Ref. 1.06 (1.02 to 1.10) 1.12 (1.08 to 1.17)   
Light PA (METs min/day)
 -Intervention
  Absolute values 101 (0.49) 120 (0.49) 127 (0.49) < 0.001 0.064
  Relative change Ref. 1.06 (1.01 to 1.10) 1.25 (1.19 to 1.31)   
 -Control
  Absolute values 103 (0.50) 113 (0.50) 121 (0.50) < 0.001  
  Relative change Ref. 1.06 (1.02 to 1.11) 1.17 (1.11 to 1.23)   
Moderate-to-vigorous PA (METs min/day)
 -Intervention
  Absolute values 126 (0.73) 219 (0.73) 231 (0.73) < 0.001 < 0.001
  Relative change Ref. 1.05 (1.00 to 1.11) 1.82 (1.71 to 1.95)   
 -Control
  Absolute values 142 (0.80) 154 (0.80) 160 (0.80) 0.002  
  Relative change Ref. 1.04 (0.98 to 1.10) 1.12 (1.05 to 1.20)   
  1. 1General estimating equation models adjusted for sex, age, education, smoking, adherence to an energy-restricted Mediterranean diet, and baseline body mass index (BMI) were used to analyze the effect of the intervention on secular trends of leisure-time physical activity in comparison with the control group. Leisure-time PA data were log-transformed for analysis. Absolute values are presented in mean and standard error (SE) and relative change in exponential beta coefficient (95% confidence interval)
  2. 2p for linear trend within groups
  3. 3p between group comparison (group*time interaction)