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Table 3 Mean values and standard deviation of paraoxonase enzymes (PON-1) and Leptin pre- and post-intervention with yerba mate, green tea and apple tea and its gross and adjusted variations between groups for 8 weeks

From: Effect of yerba mate and green tea on paraoxonase and leptin levels in patients affected by overweight or obesity and dyslipidemia: a randomized clinical trial

Variables   Intra-group P* Intergroup P
  Pre Post Crude post-pre Δ Adjusted post-pre Δ**
N Mean ± SD Mean ± SD (95% CI) (95% CI)
Paraoxonase
 Yerba mate group 47 2625 ± 1017 2880 ± 912 0.005 255 (42 a 468) 250 (57 a 444) 0.036
 Green tea group 49 2899 ± 786 2745 ± 923 0.154 − 153 (− 361 a 54) −55 (− 248 a 137)  
 Control group 46 2369 ± 675 2403 ± 684 0.629 33 (− 181 a 249) −66 (−264 a 132)  
Leptin
 Yerba mate group 47 25,010 ± 16,344 24,849 ± 16,226 0.908 − 160 (− 2551 a 2230) − 0.440 (− 2275 a 2274) 0.450
 Green tea group 49 25,049 ± 15,775 25,288 ± 14,551 0.783 238 (− 2104 a 2580) 405 (1823 a 2633)  
 Control group 46 22,028 ± 15,296 20,813 ± 15,160 0.347 − 1214 (− 3632 a 1202) −1556 (− 3860 a 748)  
  1. * Method of generalized estimating equations with multiple comparisons adjusted by Bonferroni method (intra group)
  2. ** ANCOVA with adjustment for baseline levels among the 3 groups