MedDataX Logo

Trial Outcomes & Findings for Price Changes and Nutrient Profiling Among Adult Grocery Shoppers (NCT NCT02376530)

NCT ID: NCT02376530

Last Updated: 2020-10-22

Results Overview

The Overall Nutrient Quality Index (ONQI) was used to assess nutritional quality of foods purchased. The ONQI is a 1 - 100 scale in which higher numbers indicate higher nutritional quality. Each food is given a score based on a ratio with positive health nutrients in the numerator and detrimental health nutrients in the denominator, based on a proprietary algorithm created by NuVal. The average ONQI score for all the groceries purchases was used as the outcome measure, of ONQI scores on a scale.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

788 participants

Primary outcome timeframe

Participants were followed for one shopping session, an average of 2.5 hours

Results posted on

2020-10-22

Participant Flow

Participants were recruited from the WNY community between 2012-2014.

Participant milestones

Participant milestones
Measure
Usual Shopping
No change in condition.
Nutrient Profiling
Nutrient profiling system will be present during shopping session.
Price Change
Price changes will be present during shopping session.
Nutrient Profiling and Price Change
Nutrient profiling system and price changes will be present during shopping session.
Overall Study
STARTED
196
198
197
197
Overall Study
COMPLETED
196
198
197
197
Overall Study
NOT COMPLETED
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Price Changes and Nutrient Profiling Among Adult Grocery Shoppers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Usual Shopping
n=196 Participants
No change in condition.
Nutrient Profiling
n=198 Participants
Nutrient profiling system will be present during shopping session.
Price Change
n=197 Participants
Price changes will be present during shopping session.
Nutrient Profiling and Price Change
n=197 Participants
Nutrient profiling system and price changes will be present during shopping session.
Total
n=788 Participants
Total of all reporting groups
Age, Continuous
43.1 years
STANDARD_DEVIATION 8.6 • n=5 Participants
42.5 years
STANDARD_DEVIATION 8.8 • n=7 Participants
42.4 years
STANDARD_DEVIATION 8.2 • n=5 Participants
41.6 years
STANDARD_DEVIATION 7.8 • n=4 Participants
42.4 years
STANDARD_DEVIATION 8.4 • n=21 Participants
Sex: Female, Male
Female
196 Participants
n=5 Participants
198 Participants
n=7 Participants
197 Participants
n=5 Participants
197 Participants
n=4 Participants
788 Participants
n=21 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
n=5 Participants
12 Participants
n=7 Participants
8 Participants
n=5 Participants
11 Participants
n=4 Participants
38 Participants
n=21 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
188 Participants
n=5 Participants
185 Participants
n=7 Participants
188 Participants
n=5 Participants
185 Participants
n=4 Participants
746 Participants
n=21 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
4 Participants
n=21 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
5 Participants
n=21 Participants
Race (NIH/OMB)
Asian
2 Participants
n=5 Participants
5 Participants
n=7 Participants
2 Participants
n=5 Participants
3 Participants
n=4 Participants
12 Participants
n=21 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
2 Participants
n=21 Participants
Race (NIH/OMB)
Black or African American
44 Participants
n=5 Participants
39 Participants
n=7 Participants
47 Participants
n=5 Participants
39 Participants
n=4 Participants
169 Participants
n=21 Participants
Race (NIH/OMB)
White
135 Participants
n=5 Participants
140 Participants
n=7 Participants
140 Participants
n=5 Participants
140 Participants
n=4 Participants
555 Participants
n=21 Participants
Race (NIH/OMB)
More than one race
9 Participants
n=5 Participants
8 Participants
n=7 Participants
3 Participants
n=5 Participants
5 Participants
n=4 Participants
25 Participants
n=21 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
n=5 Participants
4 Participants
n=7 Participants
4 Participants
n=5 Participants
7 Participants
n=4 Participants
20 Participants
n=21 Participants
Region of Enrollment
United States
196 participants
n=5 Participants
198 participants
n=7 Participants
197 participants
n=5 Participants
197 participants
n=4 Participants
788 participants
n=21 Participants
Body Mass Index (BMI)
31.0 Kg/m^2
STANDARD_DEVIATION 8.0 • n=5 Participants
30.8 Kg/m^2
STANDARD_DEVIATION 7.9 • n=7 Participants
30.9 Kg/m^2
STANDARD_DEVIATION 8.2 • n=5 Participants
31.3 Kg/m^2
STANDARD_DEVIATION 8.7 • n=4 Participants
31.0 Kg/m^2
STANDARD_DEVIATION 8.2 • n=21 Participants

PRIMARY outcome

Timeframe: Participants were followed for one shopping session, an average of 2.5 hours

Population: Data was analyzed for 781 participants. Two participants did not understand the study, 2 participants had incorrect price manipulations during their session, 1 participant was ill during the session, 1 participant had her young daughter in the room during the experiment and 1 participant did not have a household to shop for.

The Overall Nutrient Quality Index (ONQI) was used to assess nutritional quality of foods purchased. The ONQI is a 1 - 100 scale in which higher numbers indicate higher nutritional quality. Each food is given a score based on a ratio with positive health nutrients in the numerator and detrimental health nutrients in the denominator, based on a proprietary algorithm created by NuVal. The average ONQI score for all the groceries purchases was used as the outcome measure, of ONQI scores on a scale.

Outcome measures

Outcome measures
Measure
Usual Shopping
n=193 Participants
No change in condition.
Nutrient Profiling
n=197 Participants
Nutrient profiling system will be present during shopping session.
Price Change
n=196 Participants
Price changes will be present during shopping session.
Nutrient Profiling and Price Change
n=195 Participants
Nutrient profiling system and price changes will be present during shopping session.
Nutritional Quality of Food Purchases
37.62 Average NUVAL Score
Standard Deviation 14.84
41.12 Average NUVAL Score
Standard Deviation 15.06
39.66 Average NUVAL Score
Standard Deviation 13.30
41.01 Average NUVAL Score
Standard Deviation 14.21

Adverse Events

Usual Shopping

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Nutrient Profiling

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Price Change

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Nutrient Profiling and Price Change

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Leonard H. Epstein

SUNYBuffalo

Phone: 716-829-3400

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place