Individual Study / Sandberg et al.;BMJ Open Respir Res. 2019

Relating Experienced To Recalled Breathlessness Observational (RETRO) Study: A Prospective Study Using a Mobile Phone Application

Relating Experienced To Recalled Breathlessness Observational (RETRO) Study: A Prospective Study Using a Mobile Phone Application

Initiatives -
The primary aim is to evaluate the relationship between experienced breathlessness and (1) recalled breathlessness and (2) predicted future breathlessness. Secondary aims are to identify factors that influence the difference between experienced and recalled or predicted breathlessness, to evaluate how people think when they recall breathlessness over defined time periods and to evaluate a novel method of collecting data in this field. Note: All published information has been collected from the article referenced in the Marker Paper box below. Therefore, there may be variations with more advanced versions of the study.
Start Year
2018
End Year
2020
Funding
Jacob Sandberg was funded by an unrestricted grant from the Scientific Committee of Blekinge County Council. Magnus Ekström was supported by unrestricted grants from The Swedish Society of Medicine, the Swedish Respiratory Society, the Swedish Heart-Lung Foundation, the Scientific Committee of Blekinge County Council, the Wera and Emil Cornell Foundation, and the Swedish Society for Medical Research.

Design

Study design
Patients' cohort

Marker Paper

Sandberg J, Lansing R, Anderberg P, et al. Relating Experienced To Recalled breathlessness Observational (RETRO) study: a prospective study using a mobile phone application. BMJ Open Respir Res. 2019;6(1):e000370. Published 2019 Feb 12. doi:10.1136/bmjresp-2018-000370

PUBMED 30956800

Recruitment

Sources of Recruitment
  • Individuals

Number of participants

Number of participants
100
Number of participants with biosamples

Access

Availability of data and biosamples

Data
Biosamples
Other

Timeline

Population

Potential participants will be identified by clinical and research staff at the centres of the participating investigators including primary care, pulmonary clinics and internal medicine/cardiology departments in Blekinge, Örebro and Skane University Hospitals (Lund/Malmö). Participants will also be recruited through advertisements in national and local newspapers and magazines including those of the Swedish Respiratory Society, the Swedish Heart-Lung Foundation and the Heart-Lung Association and on webportals/sites.
Selection Criteria
Minimum age
18
Newborns
Twins
Countries
  • United States of America
  • United Kingdom
  • Sweden
Ethnic Origin
Health Status
  • Inclusion criteria are age ≥18 years with a self-reported breathlessness intensity ≥3 on a 0–10 Numerical Rating Scale (NRS) during the prior 2 weeks not caused by an acute infection such as an upper respiratory tract infection or pneumonia. Participants should be clinically stable without expected need for hospital admission within 1 week, be able to walk without a personal aid (rollator allowed), be able to use a device (smartphone/pad) with internet access regularly and be able to read and complete baseline assessments.

Recruitment

Sources of recruitment
  • Specific population
Specific Population
  • Clinic patients

Number of participants

Number of participants
100
Number of participants with biosamples
Data Collection Event
A mobile phone application will be used to collect data during daily life. Medically stable participants, ≥18 years of age with mean daily breathlessness of Numerical Rating Scale (NRS) 3/10 and able to use a mobile phone with internet will rate their breathlessness intensity on a 0–10 NRS prompted the user several times daily for 1 week.
Start Date
2018-05
End Date
2020
Data sources
  • Mobile data collection
    • Mobile phone