Prospective Urban Rural Epidemiology Study (PURE)
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ClinicalTrials.gov Identifier: NCT03225586 |
Recruitment Status :
Recruiting
First Posted : July 21, 2017
Last Update Posted : October 20, 2022
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Condition or disease |
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Cardiovascular Diseases Risk Factor, Cardiovascular Health Behavior Environmental Exposure Lung Diseases Cancer Injuries Renal Disease Communicable Disease |
- To examine the relationship between societal influences and prevalence of risk factors and chronic noncommunicable diseases. Societal determinants are measured by an index of measures from each of the 4 domains of interest: built environment, food and nutrition policy, psychosocial/socioeconomic factors, and tobacco.
- To examine the relationship between societal determinants and incidence of chronic noncommunicable disease events (e.g. cardiovascular disease, cancer) and on changes in rates of selected risk factors (e.g. smoking)
- To examine the relationship between health related behaviors (e.g. diet, physical activity, smoking, alcohol) and health outcomes (e.g. death, non-communicable diseases)
- The quality of health systems across a diverse range of health resource settings, and how this impacts health outcomes
- Genetic factors for non-communicable diseases
Study Type : | Observational |
Estimated Enrollment : | 200000 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Official Title: | Prospective Urban Rural Epidemiology Study |
Actual Study Start Date : | January 1, 2002 |
Estimated Primary Completion Date : | December 31, 2030 |
Estimated Study Completion Date : | December 31, 2030 |
Group/Cohort |
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Adults
Between 35 to 70 years of age at time of enrollment
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- incident cardiovascular disease [ Time Frame: mean follow up of 10 years ]cardiovascular death, stroke, myocardial infarction, heart failure
- incident cancer [ Time Frame: mean follow up of 10 years ]total and cause specific cancers
- Incident COPD [ Time Frame: mean follow up of 10 years ]development of COPD
- Incident Asthma [ Time Frame: mean follow up of 10 years ]development of asthma
- Pneumonia [ Time Frame: mean follow up of 10 years ]hospitalization for pneumonia
- Respiratory outcomes [ Time Frame: mean follow up of 10 years ]change in pulmonary function test
- All Cause Hospitalizations [ Time Frame: mean follow up of 10 years ]All cause hospitalizations
- Kidney disease [ Time Frame: mean follow up of 10 years ]end stage renal disease, dialysis, transplant, changes in renal function
- All cause and cause specific mortality [ Time Frame: mean follow up of 10 years ]death from all causes, and cause specific deaths
- incident diabetes [ Time Frame: mean follow up of 10 years ]development of diabetes
- obesity [ Time Frame: mean follow up of 10 years ]development of obesity, change in BMI
- hypertension [ Time Frame: mean follow up of 10 years ]development of hypertension and changes in blood pressure
- incident injuries [ Time Frame: mean follow up of 10 years ]assessing fatal and non-fatal injuries due road traffic accidents and falls
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 35 Years to 70 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Gender Based Eligibility: | Yes |
Gender Eligibility Description: | Both Men and Women |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- consenting adults between 35-70 years of age
Exclusion Criteria:
- none

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03225586
Contact: Sumathy Rangarajan, MSc | 905-521-2100 ext 40464 | sumathy.rangarajan@phri.ca | |
Contact: Janette Panhuis, BScN, MBA | 905-521-2100 ext 40386 | janette.panhuis@phri.ca |

Principal Investigator: | Salim Yusuf, DPhil | Executive Director |
Publications of Results:
Other Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Salim Yusuf's office, Executive Director, Population Health Research Institute, Population Health Research Institute |
ClinicalTrials.gov Identifier: | NCT03225586 |
Other Study ID Numbers: |
PURE |
First Posted: | July 21, 2017 Key Record Dates |
Last Update Posted: | October 20, 2022 |
Last Verified: | October 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | During study conduct only with the investigators who have participated /contributed to the study. Select summary data may be shared with policy makers for specific purposes.The study exec will consider specific requests for data analyses by non-contributing individuals 3 years after the study has been completed (i.e. complete recruitment and a minimum of 10 years follow up in all) and the participating investigators have had an opportunity to explore questions that they are interested in. Costs related to data curating ,and related efforts will need to be met by anybody not contributing to the study and requesting analyses |
Supporting Materials: |
Study Protocol Clinical Study Report (CSR) |
Time Frame: | complete recruitment and a minimum of 10 years follow up in all |
Access Criteria: | The study exec will consider specific requests for data analyses by non-contributing individuals 3 years after the study has been completed (i.e. complete recruitment and a minimum of 10 years follow up in all) and the participating investigators have had an opportunity to explore questions that they are interested in. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Non-communicable Diseases, Risk Factors |
Communicable Diseases Infections Lung Diseases Cardiovascular Diseases |
Respiratory Tract Diseases Disease Attributes Pathologic Processes |