Trial Outcomes & Findings for Feasibility of a Campaign Intervention Compared to a Standard Behavioral Weight Loss Intervention in Overweight and Obese Adults (NCT NCT01803737)

NCT ID: NCT01803737

Last Updated: 2014-02-17

Results Overview

Body weight will be measured on a digital scale to assess change in body weight over the 12-week intervention period.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

26 participants

Primary outcome timeframe

Week 0 and 12

Results posted on

2014-02-17

Participant Flow

We recruited twenty six (N=26) sedentary, overweight and obese adult men and women to participate in a behavioral weight loss intervention at the University of Pittsburgh Physical Activity and Weight Management Research Center. Recruitment occurred between January 2013 and March 2013.

Participant milestones

Participant milestones
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Overall Study
STARTED
13
13
Overall Study
COMPLETED
12
10
Overall Study
NOT COMPLETED
1
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Overall Study
Lack of Time
1
0
Overall Study
Medical Reason
0
1
Overall Study
Lost to Follow-up
0
2

Baseline Characteristics

Feasibility of a Campaign Intervention Compared to a Standard Behavioral Weight Loss Intervention in Overweight and Obese Adults

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Total
n=26 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
13 Participants
n=5 Participants
13 Participants
n=7 Participants
26 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
42.5 years
STANDARD_DEVIATION 9.1 • n=5 Participants
43.8 years
STANDARD_DEVIATION 9.0 • n=7 Participants
43.1 years
STANDARD_DEVIATION 8.9 • n=5 Participants
Sex: Female, Male
Female
11 Participants
n=5 Participants
11 Participants
n=7 Participants
22 Participants
n=5 Participants
Sex: Female, Male
Male
2 Participants
n=5 Participants
2 Participants
n=7 Participants
4 Participants
n=5 Participants
Region of Enrollment
United States
13 participants
n=5 Participants
13 participants
n=7 Participants
26 participants
n=5 Participants

PRIMARY outcome

Timeframe: Week 0 and 12

Body weight will be measured on a digital scale to assess change in body weight over the 12-week intervention period.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Body Weight
-5.6 kg
Standard Deviation 2.9
-3.1 kg
Standard Deviation 3.4

SECONDARY outcome

Timeframe: Week 0 and 12

A questionnaire will be used to measure and quantify energy expenditure from physical activity.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Physical Activity
983.3 kcals/wk
Standard Deviation 567.6
776.3 kcals/wk
Standard Deviation 1194.8

SECONDARY outcome

Timeframe: Week 0 and 12

A questionnaire will be used to assess self-reported food intake. This will be used to estimate calories, dietary fat, protein, and carbohydrates consumed.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Dietary Intake: Kcals/Day
474.8 kcals/day
Standard Deviation 509
242.5 kcals/day
Standard Deviation 709.3

SECONDARY outcome

Timeframe: Week 0 and 12

A questionnaire will be used to assess self-reported food intake. This will be used to estimate calories, dietary fat, protein, and carbohydrates consumed.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Dietary Intake: % Fat
-3.26 percentage of fat intake
Standard Deviation 5.58
-0.00 percentage of fat intake
Standard Deviation 4.27

SECONDARY outcome

Timeframe: Week 0 and 12

A questionnaire will be used to assess self-reported food intake. This will be used to estimate calories, dietary fat, protein, and carbohydrates consumed.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Dietary Intake: % Protein
0.73 percentage of protein intake
Standard Deviation 2.38
0.44 percentage of protein intake
Standard Deviation 2.57

SECONDARY outcome

Timeframe: Week 0 and 12

A questionnaire will be used to assess self-reported food intake. This will be used to estimate calories, dietary fat, protein, and carbohydrates consumed.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Dietary Intake: % Carbohydrate
0.64 percentage of carbohydrate intake
Standard Deviation 6.15
0.90 percentage of carbohydrate intake
Standard Deviation 5.24

SECONDARY outcome

Timeframe: Week 0 and 12

The frequency that participants engaged in the self-monitoring of dietary intake and physical activity was assessed at week 12. The diaries were completed weekly throughout the study.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=143 Eating and Exercise Diary
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=143 Eating and Exercise Diary
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Completion of Self-monitoring of Dietary Intake and Physical Activity
91.6 percentage of diaries completed
Standard Deviation 18
60.1 percentage of diaries completed
Standard Deviation 38.5

SECONDARY outcome

Timeframe: Week 0 and 12

Self-efficacy for weight loss was assessed at week 0 and 12 using a 20-item Weight Efficacy Lifestyle Questionnaire (WEL). The total score ranges from 0-180. Higher values represent greater beliefs toward the completion of weight management behaviors.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=13 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=13 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Change in Weight Loss Self-efficacy
28.3 units on a scale
Standard Deviation 35.7
16.3 units on a scale
Standard Deviation 35.8

SECONDARY outcome

Timeframe: Week 12

At week 12, participants completed the 13-item TSRQ to assess motivation to continue to participate in the program if given the opportunity. The TSRQ represents participants' reasons for continuing participation in a weight loss program via participants' endorsement of statements of autonomous and controlled motivation. Responses were given using a 7-point Likert scale (1 = not at all true to 7 = very true). The responses on the autonomous items (5) and controlled items (8) were averaged.

Outcome measures

Outcome measures
Measure
Standard Behavioral Weight Loss Intervention (SBWL)
n=12 Participants
Includes changing eating behaviors, increasing physical activity, and attending regular group weight loss meetings.
Campaign Intervention (CI)
n=10 Participants
Includes changing eating behaviors and increasing physical activity, however participants will not attend regular meetings. Instead they will attend two weekly meetings at weeks 0 and 12. During the weeks they are not scheduled to attend in-person weekly meetings (weeks 1-11), they will receive education materials via e-mail. They will also have the opportunity to earn points towards prizes by reporting diet and physical activity behaviors, and body weight via e-mail.
Autonomous and Controlled Motivation
Autonomous Motivation
6.3 units on a scale
Standard Deviation 0.9
5.3 units on a scale
Standard Deviation 1.5
Autonomous and Controlled Motivation
Controlled Motivation
2.9 units on a scale
Standard Deviation 1.1
2.9 units on a scale
Standard Deviation 1.0

Adverse Events

Standard Behavioral Weight Loss Intervention (SBWL)

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

Campaign Intervention (CI)

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

David O. Garcia, PhD

University of Arizona

Phone: 520-626-4641

Results disclosure agreements

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