Table 6 Differences in knowledge scores pre- and post-intervention of Olmsted County Sample.

From: Development and validation testing of a weight management nutrition knowledge questionnaire for adults

 

Pre intervention results (%)

Post intervention results (%)

P value

Overall Score

75.4; 95% CI [73.4, 77.3]

86.6; 95% CI [85.2, 88.1]

<0.0001

Alcohol Intake and Sugar Sweetened Beverages

70.0; 95% CI [65.0, 75.2]

85.4; 95% CI [83.5, 87.3]

<0.0001

Energy Density

76.6; 95% CI [73.7, 79.4]

85.7; 95% CI [81.1, 90.2]

<0.0001

Portion Size

77.1; 95% CI [74.0, 80.3]

86.89; 95% CI [84.6, 89.2]

<0.0001

Reliable Nutrition Information

82.4; 95% CI [79.2, 85.6]

92.4; 95% CI [91.2, 93.7]

<0.0002

Variety of Food Affects Food Intake

57.1; 95% CI [54.8, 59.5]

91.2; 95% CI [90.4, 91.9]

<0.0001

Overall Weighted Scorea

75.5%

86.1%

<0.0001

  1. Three one hour nutrition knowledge weight management education intervention was administered to 119 participants of the Olmstead County. The questionaire was administered pre- and post-nutrition class intervention. Paired t-test was used to assess mean difference in score pre and post nutrition knowledge intervention
  2. aFor the overall weighted score, energy density was given a 40% weight, portion size given a 40% weight, and alcohol intake and sugar sweetened beverages was given a 20% of the overall questionaire. Reliable nutrition Information and variety of food affects food intake were not included in the weighted score and were treated as stand alone questions
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