A Comparison of Different Units for Blood Glucose (mmol/L and mg/dl) and Hemoglobin A1c (% and mmol/Mol) Results.

NCT07102498 | Not Yet Recruiting

• 1 other identifier: units
• Study Type: interventional
• Target: 350
• Locations: 0 countries
• Sites: N/A

Brief Summary

A comparison of people's reactions to hypothetical test results using different units.

Conditions

Diabetes

Outcome Measures

Primary Outcomes (1)

• Opinion about result

  Participants' views about the results presented in different units. The exact question wording is: "In your view and based only on the information you have, what is your opinion of this result?" Participants indicate their response on a visual analog scale (a slider) from 0 to 100 with labels "It is not a problem at all" = 0, "I don't know" = 50, or "It is a big problem" = 100.

  Immediately after the intervention

Study Arms (4)

bgmmol a1cpercent

PLACEBO COMPARATOR

BG presented in mmol/L and HbA1c presented in percent

Behavioral: BG mmol/L; Behavioral: A1c percent

bgmmol a1cmmol

EXPERIMENTAL

BG presented in mmol/L and HbA1c presented in mmol/mol

Behavioral: BG mmol/L; Behavioral: A1c mmol/mol

bgmgdl a1cpercent

EXPERIMENTAL

BG presented in mg/dl and HbA1c presented in percent

Behavioral: BG mg/dl; Behavioral: A1c percent

bgmgdl a1cmmol

EXPERIMENTAL

BG presented in mg/dl and HbA1c presented in mmol/mol

Behavioral: BG mg/dl; Behavioral: A1c mmol/mol

Interventions

BG mmol/L BEHAVIORAL

BG presented in mmol/L (the standard presentation in Canada)

bgmmol a1cmmol; bgmmol a1cpercent

BG mg/dl BEHAVIORAL

BG presented in mg/dl

bgmgdl a1cmmol; bgmgdl a1cpercent

A1c percent BEHAVIORAL

HbA1c presented in percent (the standard presentation in Canada)

bgmgdl a1cpercent; bgmmol a1cpercent

A1c mmol/mol BEHAVIORAL

HbA1c presented in mmol/mol

bgmgdl a1cmmol; bgmmol a1cmmol

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Able to use a computer
• Able to use the internet
• Able to read and respond to questions in English or French
• Adults 18+ years old living in Canada

Sponsors & Collaborators

• Laval University: lead

MeSH Terms

Conditions

Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Endocrine System Diseases

Central Study Contacts

Holly Witteman

CONTACT

418-656-2131; holly.witteman@fmed.ulaval.ca

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: HEALTH SERVICES RESEARCH
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 28, 2025
• First Posted: August 3, 2025
• Study Start: July 24, 2025
• Primary Completion: August 31, 2025
• Study Completion: August 31, 2025
• Last Updated: August 3, 2025

Record last verified: 2025-07

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, ICF, ANALYTIC CODE
• Time Frame: IPD and supporting information will be shared as soon as the study report is complete and will be available indefinitely.
• Access Criteria: Anyone with internet access will be able to access public-facing data. Some data may be restricted to those who register with Borealis.