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Table 3 Difference in constant systematic error in reporting of fruit and vegetable intake between intervention and control groups

From: Differential reporting of fruit and vegetable intake among youth in a randomized controlled trial of a behavioral nutrition intervention

Visit timeline βa p
Baseline 0.02 0.78
6 months follow-up −0.03 0.70
12 months follow-up 0.004 0.96
18 months follow-up −0.001 0.99
  1. aEstimated by regressing treatment assignment and fruit and vegetable intake on serum carotenoids, where the slope of treatment assignment indicates difference in constant systematic error between intervention and control