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Table 5 Impact of genetic test scores and risk perception on changes in diet and exercise

From: Diet and exercise changes following direct-to-consumer personal genomic testing

Variable

β (95% CI), p-value

R2

Cardiometabolic genetic test score

 

 Fruit Servings per Day

β = -0.04 (-0.14, 0.06), p = 0.42

0.18

 Vegetable Servings per Day

β = -0.02 (-0.11, 0.08), p = 0.73

0.14

 Light Exercise per Week

β = -0.01 (-0.22, 0.20), p = 0.90

0.28

 Vigorous Exercise per Week

β = -0.09 (-0.26, 0.08), p = 0.29

0.23

 Strength Exercise per Week

β = 0.02 (-0.14, 0.18), p = 0.82

0.23

Total genetic risk score

 

 Fruit Servings per Day

β = -0.03 (-0.06, -0.01), p = 0.02

0.18

 Vegetable Servings per Day

β = -0.007 (-0.03, 0.02), p = 0.63

0.14

 Light Exercise per Week

β = 0.01 (-0.05, 0.07), p = 0.73

0.28

 Vigorous Exercise per Week

β = -0.03 (-0.08, 0.02), p = 0.28

0.23

 Strength Exercise per Week

β = -0.005 (-0.05, 0.04), p = 0.82

0.23

Change in risk perceptiona

 Fruit Servings per Day

β = -0.004 (-0.04, 0.03), p = 0.81

0.20

 Vegetable Servings per Day

β = 0.005 (-0.03, 0.04), p = 0.75

0.15

 Light Exercise per Week

β = -0.04 (-0.11, 0.04), p = 0.31

0.28

 Vigorous Exercise per Week

β = -0.08 (-0.14, -0.02), p = 0.01

0.26

 Strength Exercise per Week

β = 0.004 (-0.06, 0.06), p= 0.91

0.23

  1. Adjusted for: baseline behavior, company, season change, age, gender, education, income, race, ethnicity, baseline BMI, baseline self-reported health
  2. β estimates are raw coefficients
  3. aAlso adjusted for baseline perceived riskNote: The presented model R2 values (with genetic risk score/risk perception) are all equivalent to the covariate-only R2 values for each fitted model