How effective is a 2-year peer-support diabetes education program, for type 2 diabetes, in a semi-rural Mayan community in the Yucatán, Mexico?

ISRCTN ISRCTN96897082
DOI https://doi.org/10.1186/ISRCTN96897082
Secondary identifying numbers ESR-16-12030
Submission date
01/07/2020
Registration date
07/07/2020
Last edited
19/01/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
There is a lack of certified diabetes educators in Mexico. Diabetes is a burden to the national health budget and overcomes the capacity of Mexican public health infrastructure.

Peer leaders are people with diabetes who are trained to acquire skills designed to empower other people living with diabetes, amplify educational strategies, and improve outcomes of conventional diabetes education programs.

The investigators have previously proven, in the short term period, a model of Diabetes Education supported by peers resulting in better diabetes outcomes when added to a conventional diabetes education program in a semi-rural Mayan population (http://isrctn.com/ISRCTN40146390). However, there is no information yet on the sustainability of the effects on the outcomes for people with diabetes in a midterm time frame (2 years).

This study aims to determine the midterm effects of a diabetes education program supported by peers and its sustainability over this period of time.

Who can participate?
Adults living in the community of Komchen, who are over the age of 30 and who have a physician’s diagnosis of type 2 diabetes.

What does the study involve?
Participants will be randomly allocated to one of two groups. Those in the first group will be asked to participate in the education program. Those in the second group will be asked to participate in the education program and to attend peer-support meetings. The study will last a total of two years. Participants will be asked to give blood samples every 4 months and to complete questionnaires and assessments at the start of the study and then at 12 and 24 months.

What are the possible benefits and risks of participating?
The benefits for the participants are free access to diabetes education, physical activity, and constant glucose measurements. There is no risk for participating in the educational intervention. Giving blood samples implies minimal risks; the blood sample collection guidelines will be followed to avoid these risks.

Where is the study run from?
The Universidad Marista de Merida (Mexico) and will be carried out within the community.

When is the study starting and how long is it expected to run for?
From November 2017 to November 2019.

Who is funding the study?
AstraZeneca S.A. de C.V. México (Mexico)

Who is the main contact?
1. Prof. Karen Castillo-Hernandez
nutricalli@gmail.com
2. Prof. Hugo Laviada Molina
hlaviada@marista.edu.mx

Contact information

Prof Karen Castillo-Hernández
Scientific

Universidad Marista de Mérida
Periférico Norte tablaje catastral 13941
Carretera Mérida - Progreso
Mérida, Yucatán
97300
Mexico

ORCiD logoORCID ID 0000-0002-1285-2492
Phone +52 (999) 942 9700
Email nutricalli@gmail.com
Prof Hugo Lavida-Molina
Scientific

Universidad Marista de Mérida
Periférico Norte tablaje catastral 13941
Carretera Mérida - Progreso
Mérida, Yucatán
97300
Mexico

ORCiD logoORCID ID 0000-0002-1061-3164
Phone +52 (999) 942 9700
Email hlaviada@marista.edu.mx

Study information

Study designSingle-center prospective randomized controlled study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Community
Study typePrevention
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleEffectiveness of a 2-year peer support diabetes education intervention, for type 2 diabetes, implemented in a semi-rural Mayan community in the Yucatán, Mexico: A randomised clinical trial
Study hypothesisPeople with type 2 diabetes exposed to an intervention program of diabetes education, which is reinforced by peer leaders, are able to achieve and maintain better metabolic control in the midterm, compared with a population of people living with type 2 diabetes who receive the conventional diabetes education provided by health authorities in rural communities in Yucatan, during the same period of time.
Ethics approval(s)Approved 03/02/2017, Marista University Ethics Commitee (Periférico Norte; Tablaje catastral 13941, Carretera Mérida-Progreso, C.P. 97300 Mérida, Yucatán, México; +52 999 942 97 00), ref: CEUMM_002_2017
ConditionType 2 diabetes
InterventionThis is a trial with a 2-year duration for participants with a previous diagnosis of type 2 diabetes, recruited from the community clinics in Conkal, Yucatán.

Participants will be assigned, in a 1:1 ratio, to either the Peer Support and Education Group (PSEG) or the Education-only Group (EG):
1. The Peer Support and Education Group (PSEG) uses a cultural adaptation of an international proven strategy of a peer support diabetes self-management program that has been developed by the investigators. These materials were tailored to local culture and customs. This group of participants will follow this model of education for 2 years. Diabetes self-management education program (DSME) consists in one-hour group sessions, with option of morning or afternoon meeting, one day a week only, in the Municipal Office of National System for Integral Family Development (DIF) of the Villa de Conkal conducted by a certified diabetes educator. Following the education session, participants are invited to stay for a 50-minute physical activity period. Aside from DSEM general sessions, only participants in the PSEG are assigned to one of 13 peer leaders. Study design foresees weekly attendance to peer support meetings in the community premises or at leaders’ homes, facilitated by their own peer leader without the presence of trial team members, but with the possibility to contact diabetes educator for doubts and reassurance.
Leaders were trained to start each meeting with an icebreaker introduction followed by a discussion session and a goal setting as described on the Peer Leader Manual [32]. The discussion segment is based on the DSME theme of the previous education session, or according to groups’ needs and interests.
2. The Education-only Group (EG) will receive standard care, over the same 2 year time period, via the conventional diabetes education support group promoted by official health system authorities in Mexico (without peer leader support).

All participants will be asked to give blood samples every 4 months and to complete questionnaires and assessments at baseline, 12, and 24 months, for assessment of the effectiveness of the intervention.
Intervention typeBehavioural
Primary outcome measureMetabolic control assessed using glycated haemoglobin level (HbA1c) measured from blood samples taken at baseline, 4, 8, 12, 16, 20 and 24 months
Secondary outcome measures1. Quality of life measured using the SF-36 Health Survey at baseline, 12, and 24 months
2. Systolic and diastolic blood pressure measured using an average of two readings measured on an OMRON HEM-7220 Automatic BP monitor at baseline, 4, 8, 12, 16, 20 and 24 months
3. Body Mass Index (BMI) calculated from weight, which was measured on an OMRON F514 balance, and height, which was measured on a SECA 213 Mobile Stadiometer, at baseline, 4, 8, 12, 16, 20 and 24 months
4. Self-reported use of diabetes-related self-care behaviors measured using the Summary of Diabetes Self-Care Activities Measure (SDSCA) at baseline, 12, and 24 months
Overall study start date01/12/2016
Overall study end date28/11/2019

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants152
Total final enrolment155
Participant inclusion criteria1. Diagnosis of type 2 diabetes mellitus
2. Aged ≥30 years
3. Identified in community health centers of Conkal, Yucatán
4. Wish to participate in the study
Participant exclusion criteria1. Diagnosis of physical disabilities and cannot be displaced from their homes
2. Diagnosis of a mental illness or severe learning difficulties
3. Pregnancy
Recruitment start date16/08/2017
Recruitment end date15/11/2017

Locations

Countries of recruitment

  • Mexico

Study participating centre

DIF MUNICIPAL
The Municipal Office of National System for Integral Family Development (DIF) of the Villa de Conkal
Mérida, Yucatán
97345
Mexico

Sponsor information

AstraZeneca (Mexico)
Industry

Periférico Sur No. 4305, 5° piso
Jardines en la Montaña
Tlalpan
Ciudad de México
14210
Mexico

Phone +52 800 062 7872
Email LuisFernando.Tejado@astrazeneca.com
Website https://www.astrazeneca.com/country-sites/mexico.html

Funders

Funder type

Industry

AstraZeneca (Mexico)

No information available

Results and Publications

Intention to publish date30/08/2020
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Hugo Laviada (hlaviada@marista.edu.mx). The type of data will be that will be shared is data not protected by confidentiality. The data will become available after publication in a peer-reviewed journal, data will be available indefinitely

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 12/01/2022 12/01/2022 No No
Other publications Lessons learned from a peer-supported diabetes education program in two dissimilar Mayan communities 04/01/2024 19/01/2024 Yes No

Additional files

ISRCTN96897082_BasicResults_12Jan22.pdf

Editorial Notes

19/01/2024: Publication reference added.
12/01/2022: The basic results of this trial have been uploaded as an additional file.
06/07/2020: Trial’s existence confirmed by Marista University Ethics Commitee.