NCT00210275

Brief Summary

The purpose of this study is to determine whether printed educational materials can change physician behaviour towards more evidence based decision-making.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
5,000

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2005

Longer than P75 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2005

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 13, 2005

Completed
8 days until next milestone

First Posted

Study publicly available on registry

September 21, 2005

Completed
9.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2015

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2016

Completed
Last Updated

March 26, 2015

Status Verified

March 1, 2015

Enrollment Period

10 years

First QC Date

September 13, 2005

Last Update Submit

March 25, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Behavioral intention related to referring patient for retinopathy screening

    Two months and six months post intervention

Secondary Outcomes (3)

  • Change in Attitude (Theory of Planned Behaviour)

    Two months and six months post intervention

  • Change in Subjective Norm (Theory of Planned Behaviour)

    Two months and six months post intervention

  • Change in Perceived Behavourial Control (Theory of Planned Behaviour)

    Two months and six months

Study Arms (4)

Control

NO INTERVENTION

Usual practice; no additional information provided.

Printed Educational Message #1

EXPERIMENTAL

Information about Angiotensin-converting enzyme inhibitors, hypertension treatment, and cholesterol lowering agents for diabetes

Behavioral: Printed Educational Message

Printed Educational Message #2

EXPERIMENTAL

Retinal screening for diabetes

Behavioral: Printed Educational Message

Printed Educational Message #3

EXPERIMENTAL

Diuretics for hypertension

Behavioral: Printed Educational Message

Interventions

Three forms of printed educational materials (short or long educational messages and patient reminder notes)

Printed Educational Message #1Printed Educational Message #2Printed Educational Message #3

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Family physicians or general practitioners in Ontario with \>100 patients over 65 years of age in fee for service practice with \>$50,000 billings to Ontario Health Insurance Plan (OHIP) in 2003

You may not qualify if:

  • Physicians who have elected not to receive "informed". "informed" is a quarterly newsletter on evidence based practice produced by the Institute for Clinical Evaluative Sciences (ICES) and is the vehicle for delivery of the printed educational messages.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

HypertensionDiabetes Mellitus, Type 2

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular DiseasesDiabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Officials

  • Merrick F. Zwarenstein, MB, BCh, MSc

    Institute for Clinical Evaluative Sciences

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Scientist

Study Record Dates

First Submitted

September 13, 2005

First Posted

September 21, 2005

Study Start

July 1, 2005

Primary Completion

July 1, 2015

Study Completion

July 1, 2016

Last Updated

March 26, 2015

Record last verified: 2015-03