Continuous Observations of Behavioural Risk Factors in Asia (COBRA)

NCT05136872 | Completed DMC

• 1 other identifier: NUS-IRB-2020-50
• Study Type: observational
• Target: 1,361
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of this study is to advance understanding of behavioural risk factors for cardiovascular disease and type 2 diabetes in Singapore.

Conditions

Health Behavior; Diet, Healthy; Physical Activity; Sedentary Behavior; Sleep

Keywords

health behavior; physical activity; sedentary; sleep; eating behavior; GPS; glycaemic response

Outcome Measures

Primary Outcomes (5)

• Movement behaviours

  Movement behaviours (i.e., physical activity, sedentary behaviour, sleep) are measured using a wrist-worn accelerometer.

  continuously for 9 days.

• Glucose concentrations

  Glucose concentrations are measured using a continuous glucose monitor sensor.

  in 15-minute intervals over 9 days.

• Self-reported food intake

  Self-reported food intake measurement through entering of food items and the social and physical environment of eating via an Ecological Momentary Assessment (EMA) smartphone app.

  Change in self-reported food intake over time. Data will be collected at 2.5-hour intervals between 8am and 9.30pm over a period of 9 days, and repeated at the 6-month follow-up

• Self-reported movement behaviours

  Self-reported movement behaviours (i.e., physical activity, sedentary behaviour, sleep) through entering of the type and social and physical environment context of activity via an Ecological Momentary Assessment (EMA) smartphone app.

  Change in self-reported movement behaviours over time. Data will be collected at 2.5-hour intervals between 8am and 9.30pm over a period of 9 days, and repeated at the 6-month follow-up

• Self-reported screen time

  Self-reported screen time through entering of the type of screen used and the purpose and the duration of screen time via an Ecological Momentary Assessment (EMA) smartphone app.

  Change in self-reported screen time over time. Data will be collected at 2.5-hour intervals between 8am and 9.30pm over a period of 9 days, and repeated at the 6-month follow-up

Secondary Outcomes (4)

• Self-reported stress levels

  Data will be collected 6 times per day for 9 days, and repeated at the 6-month follow-up.

• Self-reported fatigue

  Data will be collected 6 times per day for 9 days, and repeated at the 6-month follow-up.

• Self-reported positive affect

  Data will be collected 6 times per day for 9 days, and repeated at the 6-month follow-up.

• Self-reported hunger

  Data will be collected 6 times per day for 9 days, and repeated at the 6-month follow-up.

Eligibility Criteria

• Age: 21 Years - 69 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Adults in Singapore

You may qualify if:

• aged 21 to 69 years of age
• citizen or permanent resident of Singapore
• of Chinese, Malay, or Indian ethnicity
• able to read English
• own or have continued access to a smartphone with a data plan
• able to use smartphone apps
• able to walk independently

You may not qualify if:

• history of stroke, heart disease, renal failure, diabetes mellitus, thyroid disease, cancer, or a serious mental health condition (e.g., schizophrenia, depression, or dementia)
• have had vascular bypass surgery or angioplasty procedure performed
• known sensitivity to medical-grade adhesives
• bleeding disorder

Sponsors & Collaborators

• National University of Singapore: lead
• Ministry of Health, Singapore: collaborator

Study Sites (1)

Saw Swee Hock School of Public Health, National University of Singapore

Singapore, 117549, Singapore

Location

Related Publications (1)

• Edney SM, Park SH, Tan L, Chua XH, Dickens BSL, Rebello SA, Petrunoff N, Muller AM, Tan CS, Muller-Riemenschneider F, van Dam RM. Advancing understanding of dietary and movement behaviours in an Asian population through real-time monitoring: Protocol of the Continuous Observations of Behavioural Risk Factors in Asia study (COBRA). Digit Health. 2022 Jun 30;8:20552076221110534. doi: 10.1177/20552076221110534. eCollection 2022 Jan-Dec.

  PMID: 35795338 BACKGROUND

MeSH Terms

Conditions

Health Behavior; Motor Activity; Sedentary Behavior; Feeding Behavior

Condition Hierarchy (Ancestors)

Behavior; Behavior, Animal

Study Officials

• Rob M van Dam, PhD

  National University of Singapore

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: November 14, 2021
• First Posted: November 29, 2021
• Study Start: May 5, 2021
• Primary Completion: August 26, 2024
• Study Completion: August 26, 2024
• Last Updated: September 19, 2024

Record last verified: 2024-09

Data Sharing

• IPD Sharing: Will not share

Locations

SG (1)