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Table 5 Odds ratios and 95% confidence intervals for binary outcomes over time by trial arm

From: Outcomes of a randomized controlled trial of nutrition education to promote farmers’ market fruit and vegetable purchases and consumption among women enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC)

  Odds ratios, 95% confidence intervals, and p values
  Posttest   3-month follow-up   6-month follow-up  
  Arm against which WFSV arm is compared   Arm against which WFSV arm is compared   Arm against which WFSV arm is compared  
Outcome WFS EHE EHEV p WFS EHE EHEV p WFS EHE EHEV p
Knowledge of WIC-authorized FM 1.85 (0.95, 3.58) 4.51 (2.42, 8.42) 2.44 (1.29, 4.62) <.0001 2.25 (1.04, 4.90) 5.06 (2.40, 10.69) 2.18 (1.01, 4.71) .0002 1.50 (0.64, 3.52) 4.41 (2.00, 9.71) 1.52 (0.68, 3.42) .0006
Ever purchased FV at FM 1.78 (0.90, 3.53) 1.06 (0.52, 2.17) 1.31 (0.66, 2.58) .2976 8.70 (3.06, 25.00) 6.04 (2.06, 17.76) 3.36 (1.13, 10.04) .0003 1.65 (0.61, 4.48) 1.50 (0.53, 4.24) 1.05 (0.37, 2.96) .6880
Purchased FV at FM past 2 weeks 1.07 (0.59, 1.96) 2.18 (1.14, 4.16) 1.25 (0.71, 2.21) .0987 0.81 (0.39, 1.69) 2.23 (0.91, 5.47) 1.07 (0.53, 2.16) .1760 0.44 (0.17, 1.13) 0.68 (0.25, 1.90) 0.78 (0.30, 2.04) .3508
Intentions to purchase FV at FM 2.92 (1.41, 6.02) 5.16 (2.57, 10.35) 2.02 (0.97, 4.22) <.0001 2.04 (1.10, 3.80) 2.35 (1.25, 4.41) 0.98 (0.52, 1.87) .0047 0.97 (0.54, 1.77) 0.96 (0.52, 1.78) 1.09 (0.62, 1.92) .9733
  1. WFSV indicates WIC Fresh Start plus Farmers’ Market Nutrition Program vouchers, WFS WIC Fresh Start, EHE online existing health education, EHEV online existing health education plus Farmers’ Market Nutrition Program vouchers, FM farmers’ market, FV fruit and vegetable(s). Odds ratios and confidence intervals were derived from generalized linear mixed effects models that controlled for baseline measures of each outcome and pregnancy status, breastfeeding status, receiving assistance other than WIC, and social desirability trait. Odds ratios and confidence intervals indicate the likelihood of the outcome among those in the WFSV arm relative to the comparator. Values highlighted in bold indicate a significant difference between the comparator and participants in the WFSV arm. P values shown are for tests of the equality of odds ratios