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Table 6 Multiple linear regression analyses predicting annual direct household costs from income level among food-allergic families

From: The excess costs of childhood food allergy on Canadian families: a cross-sectional study

  Income above median (n = 20) Income below median (n = 15) Difference 95% CI of the difference p-value
Total annual direct costs $13,722.33 $10,752.63 $2969.70 $397.23, $5542.18 0.02
Food costs $13,625.03 $10,620.03 $3005.00 $396.69, $5613.31 0.02
Transportation costs $51.56 $95.11 $ − 43.55 $ − 116.30, $29.19 0.23
Medication costs $45.74 $37.48 $8.25 $ − 44.94, $166.65 0.25
  1. Number of household members and allergic comorbidities status (i.e., presence vs. absence) are included as covariates in each of the models
  2. 95% CI 95th percent confidence interval