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Charge: A Text Messaging-based Weight Loss Intervention

Primary Purpose

Weight Loss, Obesity

Status
Completed
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Charge
Sponsored by
Duke University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Weight Loss focused on measuring text message, digital health, weight loss, personalized

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • males and females aged 18-65 years
  • participants have English language proficiency
  • participants have a BMI between 25-40 kg/m2
  • Participants will own a smartphone
  • Participants will be willing to receive multiple text messages daily.

Exclusion Criteria:

  • prior or planned bariatric surgery
  • psychiatric hospitalization in past 12 months
  • pregnancy, nursing, or planned pregnancy
  • history of a cardiovascular event
  • history of an eating disorder
  • history of a condition (e.g., end stage renal disease, cancer, schizophrenia) or use of medications (e.g., lithium, steroids, anti-psychotics) that would affect weight measurement, for which weight loss is contraindicated, or might promote weight change
  • current participation in a weight loss trial and/or recent weight loss > 10%
  • investigator discretion for safety reasons

Sites / Locations

  • Duke University

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm 9

Arm 10

Arm 11

Arm 12

Arm 13

Arm 14

Arm 15

Arm 16

Arm 17

Arm 18

Arm 19

Arm 20

Arm 21

Arm 22

Arm 23

Arm 24

Arm 25

Arm 26

Arm 27

Arm 28

Arm 29

Arm 30

Arm 31

Arm 32

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Arm 1: WT-SM-OR-SS-CS

Arm 2: WT-SM-OR-SS-CG

Arm 3: WT-SM-OR-SF-CS

Arm 4: WT-SM-OR-SF-CG

Arm 5: WT-SM-MR-SS-CS

Arm 6: WT-SM-MR-SS-CG

Arm 7: WT-SM-MR-SF-CS

Arm 8: WT-SM-MR-SF-CG

Arm 9: WT-EM-OR-SS-CS

Arm 10: WT-EM-OR-SS-CG

Arm 11: WT-EM-OR-SF-CS

Arm 12: WT-EM-OR-SF-CG

Arm 13: WT-EM-MR-SS-CS

Arm 14: WT-EM-MR-SS-CG

Arm 15: WT-EM-MR-SF-CS

Arm 16: WT-EM-MR-SF-CG

Arm 17: DT-SM-OR-SS-CS

Arm 18: DT-SM-OR-SS-CG

Arm 19: DT-SM-OR-SF-CS

Arm 20: DT-SM-OR-SF-CG

Arm 21: DT-SM-MR-SS-CS

Arm 22: DT-SM-MR-SS-CG

Arm 23: DT-SM-MR-SF-CS

Arm 24: DT-SM-MR-SF-CG

Arm 25: DT-EM-OR-SS-CS

Arm 26: DT-EM-OR-SS-CG

Arm 27: DT-EM-OR-SF-CS

Arm 28: DT-EM-OR-SF-CG

Arm 29: DT-EM-MR-SS-CS

Arm 30: DT-EM-MR-SS-CG

Arm 31: DT-EM-MR-GF-CS

Arm 32: DT-EM-MR-GF-CG

Arm Description

Charge: weekly tracking, self-generated motivational messages, one reminder, summary score, compare to self

Charge: weekly tracking, self-generated motivational messages, one reminder, summary score, compare to group

Charge: weekly tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to self

Charge: weekly tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to group

Charge: weekly tracking, self-generated motivational messages, multiple reminders, summary score, compare to self.

Charge: weekly tracking, self-generated motivational messages, multiple reminders, summary score, compare to group.

Charge: weekly tracking, self-generated motivational messages, multiple reminders, specific feedback, compare to self

Charge: weekly tracking, self-generated motivational messages, multiple reminders, specific feedback, compare to group

Charge: weekly tracking, expert-generated motivational messages, one reminder, summary score, compare to self

Charge: weekly tracking, expert-generated motivational messages, one reminder, summary score, compare to group

Charge: weekly tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to self

Charge: weekly tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to group.

Charge: weekly tracking, expert-generated motivational messages, multiple reminders, summary score, compare to self

Charge: weekly tracking, expert-generated motivational messages, multiple reminders,summary score, compare to group

Charge: weekly tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to self

Charge: weekly tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to group

Charge: daily tracking, self-generated motivational messages, one reminder, summary score, compare to self.

Charge: daily tracking, self-generated motivational messages, one reminder, summary score, compare to group

Charge: daily tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to self.

Charge: daily tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to group

Charge: daily tracking, self-generated motivational messages, multiple reminders, summary score, compare to self

Charge: daily tracking, self-generated motivational messages, multiple reminders, summary score, compare to group.

Charge: daily tracking, self-generated motivational messages, multiple reminders, specific goal feedback, compare to self.

Charge: daily tracking, self-generated motivational messages, multiple reminders, specific goal feedback, compare to group

Charge: daily tracking, expert-generated motivational messages, one reminder, summary score, compare to self

Charge: daily tracking, expert-generated motivational messages, one reminder, summary score, compare to group

Charge: daily tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to self

Charge: daily tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to group

Charge: daily tracking, expert-generated motivational messages, multiple reminders, summary score, compare to self

Charge: daily tracking, expert-generated motivational messages, multiple reminders, summary score, compare to group

Charge: daily tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to self

Charge: daily tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to group.

Outcomes

Primary Outcome Measures

Weight
absolute change in weight

Secondary Outcome Measures

Change in diet
To experimentally determine the effects of text messaging components and levels on change in diet
Change in physical activity
To experimentally determine the effects of text messaging components and levels on change in physical activity
Change in categorical weight loss (> 5%) at 6-months
To experimentally determine the effects of text messaging components and levels on change in categorical weight loss (>5%)
weight loss maintenance
To experimentally determine the effects of text messaging components and levels on change in 12-month maintenance of weight loss
Measure engagement in the intervention
To determine how many responses we receive to our questions and to measure associations of engagement with weight change at 6- and 12- months. We will also model trajectories of change in engagement over time
Compare Cost-effectiveness of interventions
To calculate the cost of the intervention's implementation and compare cost effectiveness of each intervention.

Full Information

First Posted
July 12, 2017
Last Updated
May 8, 2023
Sponsor
Duke University
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1. Study Identification

Unique Protocol Identification Number
NCT03254940
Brief Title
Charge: A Text Messaging-based Weight Loss Intervention
Official Title
Charge: Optimizing a Standalone Text Messaging-Based Weight Loss Intervention
Study Type
Interventional

2. Study Status

Record Verification Date
May 2023
Overall Recruitment Status
Completed
Study Start Date
January 31, 2018 (Actual)
Primary Completion Date
June 29, 2019 (Actual)
Study Completion Date
January 31, 2023 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Duke University

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This study evaluates different versions of a text messaging-based app for weight loss. This study will place participants to 1 of 32 experimental conditions that reflect different texting components and levels. Participants will be randomized to a condition. The investigators will recruit 448 adults into a 6-month weight loss program, with an additional follow-up 6-months after the intervention ends.
Detailed Description
Standalone text messaging-based weight loss treatments are scalable and can achieve population reach. However, these interventions are also modular; they can be delivered independently to maximize cost-effectiveness or combined with other approaches (e.g. provider counseling) to maximize outcomes. This study is a 12-month experimental trial among 448 adults with obesity. All participants will receive a core 6-month weight loss texting intervention that includes tailored behavior change goals, interactive self-monitoring, automated feedback, and skills training. Participants will be randomly assigned to 1 of 32 different experimental conditions.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Weight Loss, Obesity
Keywords
text message, digital health, weight loss, personalized

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Factorial Assignment
Model Description
The investigators will use a full factorial design to randomize participants to experimental conditions that reflect the texting intervention components: motivational messaging (self- vs expert-generated), texting frequency (daily vs weekly), reminders (one reminder v. multiple reminders), feedback type (summary score v. specific feedback) and comparison unit (to self v. to a group of people). The full factorial design is power efficient, logistically feasible (because we manipulate conditions using technology) and will allow the investigators to examine the most important main and interaction effects among components.
Masking
Investigator
Allocation
Randomized
Enrollment
534 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Arm 1: WT-SM-OR-SS-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, one reminder, summary score, compare to self
Arm Title
Arm 2: WT-SM-OR-SS-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, one reminder, summary score, compare to group
Arm Title
Arm 3: WT-SM-OR-SF-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to self
Arm Title
Arm 4: WT-SM-OR-SF-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to group
Arm Title
Arm 5: WT-SM-MR-SS-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, multiple reminders, summary score, compare to self.
Arm Title
Arm 6: WT-SM-MR-SS-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, multiple reminders, summary score, compare to group.
Arm Title
Arm 7: WT-SM-MR-SF-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, multiple reminders, specific feedback, compare to self
Arm Title
Arm 8: WT-SM-MR-SF-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, self-generated motivational messages, multiple reminders, specific feedback, compare to group
Arm Title
Arm 9: WT-EM-OR-SS-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, one reminder, summary score, compare to self
Arm Title
Arm 10: WT-EM-OR-SS-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, one reminder, summary score, compare to group
Arm Title
Arm 11: WT-EM-OR-SF-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to self
Arm Title
Arm 12: WT-EM-OR-SF-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to group.
Arm Title
Arm 13: WT-EM-MR-SS-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, multiple reminders, summary score, compare to self
Arm Title
Arm 14: WT-EM-MR-SS-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, multiple reminders,summary score, compare to group
Arm Title
Arm 15: WT-EM-MR-SF-CS
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to self
Arm Title
Arm 16: WT-EM-MR-SF-CG
Arm Type
Experimental
Arm Description
Charge: weekly tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to group
Arm Title
Arm 17: DT-SM-OR-SS-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, one reminder, summary score, compare to self.
Arm Title
Arm 18: DT-SM-OR-SS-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, one reminder, summary score, compare to group
Arm Title
Arm 19: DT-SM-OR-SF-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to self.
Arm Title
Arm 20: DT-SM-OR-SF-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, one reminder, specific goal feedback, compare to group
Arm Title
Arm 21: DT-SM-MR-SS-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, multiple reminders, summary score, compare to self
Arm Title
Arm 22: DT-SM-MR-SS-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, multiple reminders, summary score, compare to group.
Arm Title
Arm 23: DT-SM-MR-SF-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, multiple reminders, specific goal feedback, compare to self.
Arm Title
Arm 24: DT-SM-MR-SF-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, self-generated motivational messages, multiple reminders, specific goal feedback, compare to group
Arm Title
Arm 25: DT-EM-OR-SS-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, one reminder, summary score, compare to self
Arm Title
Arm 26: DT-EM-OR-SS-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, one reminder, summary score, compare to group
Arm Title
Arm 27: DT-EM-OR-SF-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to self
Arm Title
Arm 28: DT-EM-OR-SF-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, one reminder, specific goal feedback, compare to group
Arm Title
Arm 29: DT-EM-MR-SS-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, multiple reminders, summary score, compare to self
Arm Title
Arm 30: DT-EM-MR-SS-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, multiple reminders, summary score, compare to group
Arm Title
Arm 31: DT-EM-MR-GF-CS
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to self
Arm Title
Arm 32: DT-EM-MR-GF-CG
Arm Type
Experimental
Arm Description
Charge: daily tracking, expert-generated motivational messages, multiple reminders, specific goal feedback, compare to group.
Intervention Type
Behavioral
Intervention Name(s)
Charge
Intervention Description
Text messaging-based study to determine effect of different components on weight loss.
Primary Outcome Measure Information:
Title
Weight
Description
absolute change in weight
Time Frame
baseline & 6 months
Secondary Outcome Measure Information:
Title
Change in diet
Description
To experimentally determine the effects of text messaging components and levels on change in diet
Time Frame
baseline, 6 & 12 months
Title
Change in physical activity
Description
To experimentally determine the effects of text messaging components and levels on change in physical activity
Time Frame
baseline, 6 & 12 months
Title
Change in categorical weight loss (> 5%) at 6-months
Description
To experimentally determine the effects of text messaging components and levels on change in categorical weight loss (>5%)
Time Frame
baseline, 6 & 12 months
Title
weight loss maintenance
Description
To experimentally determine the effects of text messaging components and levels on change in 12-month maintenance of weight loss
Time Frame
baseline, 6 & 12 months
Title
Measure engagement in the intervention
Description
To determine how many responses we receive to our questions and to measure associations of engagement with weight change at 6- and 12- months. We will also model trajectories of change in engagement over time
Time Frame
baseline, 6 & 12 months
Title
Compare Cost-effectiveness of interventions
Description
To calculate the cost of the intervention's implementation and compare cost effectiveness of each intervention.
Time Frame
baseline & 6 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: males and females aged 18-65 years participants have English language proficiency participants have a BMI between 25-40 kg/m2 Participants will own a smartphone Participants will be willing to receive multiple text messages daily. Exclusion Criteria: prior or planned bariatric surgery psychiatric hospitalization in past 12 months pregnancy, nursing, or planned pregnancy history of a cardiovascular event history of an eating disorder history of a condition (e.g., end stage renal disease, cancer, schizophrenia) or use of medications (e.g., lithium, steroids, anti-psychotics) that would affect weight measurement, for which weight loss is contraindicated, or might promote weight change current participation in a weight loss trial and/or recent weight loss > 10% investigator discretion for safety reasons
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Gary G Bennett, PhD
Organizational Affiliation
Bishop-MacDermott Family Professor of Psychology, Global Health & Medicine
Official's Role
Principal Investigator
Facility Information:
Facility Name
Duke University
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27708
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
21132416
Citation
Collins LM, Baker TB, Mermelstein RJ, Piper ME, Jorenby DE, Smith SS, Christiansen BA, Schlam TR, Cook JW, Fiore MC. The multiphase optimization strategy for engineering effective tobacco use interventions. Ann Behav Med. 2011 Apr;41(2):208-26. doi: 10.1007/s12160-010-9253-x.
Results Reference
background
PubMed Identifier
25005661
Citation
Ogden CL, Carroll MD, Flegal KM. Prevalence of obesity in the United States. JAMA. 2014 Jul;312(2):189-90. doi: 10.1001/jama.2014.6228. No abstract available.
Results Reference
background
PubMed Identifier
22253363
Citation
Flegal KM, Carroll MD, Kit BK, Ogden CL. Prevalence of obesity and trends in the distribution of body mass index among US adults, 1999-2010. JAMA. 2012 Feb 1;307(5):491-7. doi: 10.1001/jama.2012.39. Epub 2012 Jan 17.
Results Reference
background
PubMed Identifier
26098405
Citation
Yang L, Colditz GA. Prevalence of Overweight and Obesity in the United States, 2007-2012. JAMA Intern Med. 2015 Aug;175(8):1412-3. doi: 10.1001/jamainternmed.2015.2405. No abstract available.
Results Reference
background
PubMed Identifier
21211165
Citation
Ogden CL, Lamb MM, Carroll MD, Flegal KM. Obesity and socioeconomic status in adults: United States, 2005-2008. NCHS Data Brief. 2010 Dec;(50):1-8.
Results Reference
background
PubMed Identifier
25704352
Citation
Rodriguez F, Ferdinand KC. Hypertension in minority populations: new guidelines and emerging concepts. Adv Chronic Kidney Dis. 2015 Mar;22(2):145-53. doi: 10.1053/j.ackd.2014.08.004.
Results Reference
background
PubMed Identifier
23083085
Citation
Befort CA, Nazir N, Perri MG. Prevalence of obesity among adults from rural and urban areas of the United States: findings from NHANES (2005-2008). J Rural Health. 2012 Fall;28(4):392-7. doi: 10.1111/j.1748-0361.2012.00411.x. Epub 2012 May 31.
Results Reference
background
PubMed Identifier
24239920
Citation
Jensen MD, Ryan DH, Apovian CM, Ard JD, Comuzzie AG, Donato KA, Hu FB, Hubbard VS, Jakicic JM, Kushner RF, Loria CM, Millen BE, Nonas CA, Pi-Sunyer FX, Stevens J, Stevens VJ, Wadden TA, Wolfe BM, Yanovski SZ; American College of Cardiology/American Heart Association Task Force on Practice Guidelines; Obesity Society. 2013 AHA/ACC/TOS guideline for the management of overweight and obesity in adults: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and The Obesity Society. J Am Coll Cardiol. 2014 Jul 1;63(25 Pt B):2985-3023. doi: 10.1016/j.jacc.2013.11.004. Epub 2013 Nov 12. No abstract available. Erratum In: J Am Coll Cardiol. 2014 Jul 1;63(25 Pt B):3029-3030.
Results Reference
background
PubMed Identifier
12503980
Citation
Mokdad AH, Ford ES, Bowman BA, Dietz WH, Vinicor F, Bales VS, Marks JS. Prevalence of obesity, diabetes, and obesity-related health risk factors, 2001. JAMA. 2003 Jan 1;289(1):76-9. doi: 10.1001/jama.289.1.76.
Results Reference
background
PubMed Identifier
19680230
Citation
Finkelstein EA, Brown DS, Wrage LA, Allaire BT, Hoerger TJ. Individual and aggregate years-of-life-lost associated with overweight and obesity. Obesity (Silver Spring). 2010 Feb;18(2):333-9. doi: 10.1038/oby.2009.253. Epub 2009 Aug 13.
Results Reference
background
PubMed Identifier
12517229
Citation
Fontaine KR, Redden DT, Wang C, Westfall AO, Allison DB. Years of life lost due to obesity. JAMA. 2003 Jan 8;289(2):187-93. doi: 10.1001/jama.289.2.187.
Results Reference
background
PubMed Identifier
24771654
Citation
Han X, Stevens J, Truesdale KP, Bradshaw PT, Kucharska-Newton A, Prizment AE, Platz EA, Joshu CE. Body mass index at early adulthood, subsequent weight change and cancer incidence and mortality. Int J Cancer. 2014 Dec 15;135(12):2900-9. doi: 10.1002/ijc.28930. Epub 2014 May 8.
Results Reference
background
PubMed Identifier
20059708
Citation
Osei-Assibey G, Kyrou I, Adi Y, Kumar S, Matyka K. Dietary and lifestyle interventions for weight management in adults from minority ethnic/non-White groups: a systematic review. Obes Rev. 2010 Nov;11(11):769-76. doi: 10.1111/j.1467-789X.2009.00695.x.
Results Reference
background
PubMed Identifier
19296777
Citation
Bennett GG, Glasgow RE. The delivery of public health interventions via the Internet: actualizing their potential. Annu Rev Public Health. 2009;30:273-92. doi: 10.1146/annurev.publhealth.031308.100235.
Results Reference
background
PubMed Identifier
25630361
Citation
Evans W, Nielsen PE, Szekely DR, Bihm JW, Murray EA, Snider J, Abroms LC. Dose-response effects of the text4baby mobile health program: randomized controlled trial. JMIR Mhealth Uhealth. 2015 Jan 28;3(1):e12. doi: 10.2196/mhealth.3909.
Results Reference
background
PubMed Identifier
21672170
Citation
Jordan ET, Ray EM, Johnson P, Evans WD. Text4Baby: using text messaging to improve maternal and newborn health. Nurs Womens Health. 2011 Jun-Jul;15(3):206-12. doi: 10.1111/j.1751-486X.2011.01635.x. No abstract available.
Results Reference
background
PubMed Identifier
22944150
Citation
Shapiro JR, Koro T, Doran N, Thompson S, Sallis JF, Calfas K, Patrick K. Text4Diet: a randomized controlled study using text messaging for weight loss behaviors. Prev Med. 2012 Nov;55(5):412-7. doi: 10.1016/j.ypmed.2012.08.011. Epub 2012 Aug 27.
Results Reference
background
PubMed Identifier
24246427
Citation
Steinberg DM, Levine EL, Askew S, Foley P, Bennett GG. Daily text messaging for weight control among racial and ethnic minority women: randomized controlled pilot study. J Med Internet Res. 2013 Nov 18;15(11):e244. doi: 10.2196/jmir.2844.
Results Reference
background
PubMed Identifier
33459600
Citation
Bennett GG, Steinberg D, Bolton J, Gallis JA, Treadway C, Askew S, Kay MC, Pollak KI, Turner EL. Optimizing an Obesity Treatment Using the Multiphase Optimization Strategy Framework: Protocol for a Randomized Factorial Trial. JMIR Res Protoc. 2021 Jan 18;10(1):e19506. doi: 10.2196/19506.
Results Reference
derived

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Charge: A Text Messaging-based Weight Loss Intervention

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