Higher antioxidant and lower cadmium concentrations and lower incidence of
pesticide residues in organically grown crops: a systematic literature review and meta-analyses

doi:10.1017/S0007114514001366

PMC full text:

Br J Nutr. 2014 Sep 14; 112(5): 794–811.

Published online 2014 Jul 15. doi: 10.1017/S0007114514001366

Copyright/License ►Request permission to reuse: Copyright © The Authors 2014
The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution licence http://creativecommons.org/licenses/by/3.0/

<< PrevFig. 5Next >>

Fig. 5

Results of the standard weighted meta-analysis comparing ln OR for the frequency of occurrence of pesticide residues (percentage of positive samples) in organic and conventional crops. A mixed-effect model with crop/product group as a moderator was used. OR, ln OR for each product group (◆); ORG, organic food samples; CONV, conventional food samples; n, number of data points included in the meta-analyses. Values are odds ratios, with 95 % confidence intervals represented by horizontal bars. * P value < 0·05 indicates a significant difference between ORG and CONV. † Crops/product groups for which n≤ 3 were removed from the plots. ‡ Compound foods.