Does hydration have effects on competence in doctors?

ISRCTN ISRCTN79051745
DOI https://doi.org/10.1186/ISRCTN79051745
Secondary identifying numbers P2S1
Submission date
05/02/2021
Registration date
10/02/2021
Last edited
11/10/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Research has found that doctors in the United Kingdom were clinically dehydrated at the start (36%) and end (45%) of shifts. As little as 2% dehydration as a percentage of total body weight can cause impaired physical, psychomotor, cognitive, psychiatric and visuomotor performance, in addition to greater fatigue, and reduced alertness. The addition of PPE as standard workplace practice (beyond what was previously expected) is likely to have magnified the speed at which doctors dehydrate (due to elevated temperature), and due to the functional infection-control barriers of fluid intake. Given the fundamental importance of hydration for psychophysiological functioning, exploring doctor’s hydration levels and impact on measures of competence is a valuable area of research. Therefore, the aim of this research is to explore the association between hydration and competence in doctors.

Who can participate?
This study invites adults currently in employment as a doctor by the National Health Service in the United Kingdom. Due to their specific health needs, we can’t include people who are pregnant or breastfeeding. Nor can we include doctors with current renal, cardiac, pulmonary, hepatic, digestive, thyroid, neurological or haematological disease, in addition to anyone taking medications (either prescribed or over-the-counter) that influence weight, fluid, or electrolyte balance.

What does the study involve?
Those who are eligible and decide to participate will be emailed a participant ID code, and a link to an online survey platform including the consent form. Participants will receive a testing pack in the post including sample pots, urinalysis reagent strips and comprehensive self-testing and online reporting instructions. They will be asked to complete online surveys on three occasions that they may access in private via a home laptop or PC. The first can be completed at any time convenient for the participant, the second and third must be completed when they return home following a working shift. In addition to the surveys, participants will be asked to undertake self-assessed urinalysis using reagent Labstick’s. The self-administered urinalysis method is quick, non-invasive and participants will be able to dispose of the sample immediately following input of their results. They will be required to provide a fluid record based over the duration of their working shift. On completion of the study you they will be provided with a written debriefing and offered a telephone debriefing (on request).

What are the possible benefits and risks of participating?
The aim of this study is to capture professional experiences. Results from this study may be published to inform future research and support professional and public awareness of any identified needs. Publication of the results from this study may allow dissemination of valuable information that may prompt support and understanding for the needs of medical staff. This study invites participants to think reflectively about their personal and professional experiences, this may have positive and negative emotional responses. Participants urinalysis results are non-diagnostic but may indicate health needs (e.g. dehydration), they will be given details of the healthy-range scores and advised to seek medical guidance if they need further support to meet their health needs.

Where is the study run from?
University of Reading (UK)

When is the study starting and how long is it expected to run for?
November 2020 to March 2023

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Kirsty Hodgson, k.l.hodgson@pgr.reading.ac.uk
Dr Allán Laville, a.laville@reading.ac.uk
Associate Professor Daniel Lamport, daniel.lamport@reading.ac.uk

Contact information

Dr Allán Laville
Scientific

The University of Reading School of Psychology
Harry Pitt Building
Whiteknights
University of Reading
Reading
RG6 6AH
United Kingdom

ORCiD logoORCID ID 0000-0001-9678-9269
Phone +44 (0)118 3788523
Email a.laville@reading.ac.uk
Dr Daniel Lamport
Scientific

The University of Reading School of Psychology
Harry Pitt Building
Whiteknights
University of Reading
Reading
RG6 6AH
United Kingdom

ORCiD logoORCID ID 0000-0002-4592-0439
Phone +44 (0)118 3788523
Email daniel.lamport@reading.ac.uk
Ms Kirsty Hodgson
Public

The University of Reading School of Psychology
Harry Pitt Building
Whiteknights
University of Reading
Reading
RG6 6AH
United Kingdom

ORCiD logoORCID ID 0000-0002-9680-0445
Phone +44 (0)118 3788523
Email k.l.hodgson@pgr.reading.ac.uk

Study information

Study designObservational cohort study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Internet/virtual
Study typeOther
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleExploration of the association between hydration status and competence in doctors
Study hypothesisThrough psychophysiological effects, this research hypothesises that there will be a positive association between hydration status and competency.
Ethics approval(s)Approved 14/01/2021, The University of Reading School of Psychology Research Ethics Committee (Whiteknights, University of Reading, Reading, Berkshire, RG6 6AH, UK; +44 (0)118 3788523; pclsethics@reading.ac.uk), ref: 2020-193-AL
ConditionMeasures of competence, hydration and psychophysiological status in doctors in the United Kingdom
InterventionThose who are eligible and decide to participate will be emailed a participant ID code, and a link to an online survey platform including the consent form. Participants will receive a testing pack in the post including sample pots, urinalysis reagent strips and comprehensive self-testing and online reporting instructions. They will be asked to complete online surveys on three occasions that they may access in private via a home laptop or PC. The first can be completed at any time convenient for the participant, the second and third must be completed when they return home following a working shift. In addition to the surveys, participants will be asked to undertake self-assessed urinalysis using reagent Labstick’s. The self-administered urinalysis method is quick, non-invasive and participants will be able to dispose of the sample immediately following input of their results. They will be required to provide a fluid record based over the duration of their working shift. On completion of the study they will be provided with a written debriefing and offered a telephone debriefing (on request).

Within 3-days following the baseline testing session, participants will also be asked to complete Day 1 of the working day assessment. B0 - T2 is designed to be completed within a 7-day period according to each doctor’s shift pattern.
Intervention typeOther
Primary outcome measure1. Competence is measured using a Self-Assessment Questionnaire (M-SQ) following two working shifts (T1 - T2)
2. Hydration status is measured using self-assessed urinalysis reagent Labstick’s reporting urine specific gravity (Uspecific gravity) at T1 and T2
Secondary outcome measuresCurrent secondary outcome measures as of 01/03/2021:

Measured at B0:
1. The Professional Quality of Life – Version 5 (ProQOL-5) to assess coping competence, burnout, secondary traumatic stress and compassion satisfaction (Stamm, 2009)
2. The Profile of Emotional Competence (PEC) as a self-reported measure of intra- and inter-personal emotional competence and global emotional intelligence (Brasseur, Grégoire, Bourdu, & Mikolajczak, 2013)
3. The Almost Perfect Scale-Revised Short Form (APS-R SF) to assess attitudes towards others, themselves and their performance, orthogonally measuring the maladaptive and adaptive aspects of perfectionism (Slaney et al., 2001)
4. The Diagnostic Thinking Inventory (DTI) which is a widely applied self-assessment tool used to determine clinical diagnostic reasoning in doctors at all stages of their career. The DTI assesses two clinical reasoning domains: knowledge structure in memory and flexibility in thinking (Bordage, Grant & Marsden, 1990)5. The Lifestyle Appraisal Questionnaire (LAQ) as a comprehensive assessment of lifestyle (Craig, Hancock & Craig, 1996)

Measured at T1 and T2:
5. The Daily Stress Inventory (DSI) items measure a 24-hour period and three daily scores are derived on the number of events, the sum of the impact of the events, and the average impact rating of the events (Brantley, Waggoner, Jones & Rappaport, 1987)
6. N-back Letters Tasks (level 2 and 3), tasks will be used as a cognitive assessment to measure performance of a part of working memory and working memory capacity
7. Reagent Labstick’s: urinary pH (UpH) as a measure of physiologic and psychological stress
8. Urine colour (Ucolour) will be analysed using an NHS 8-level colour chart
9. Fluid record based on the volume and type of fluid consumed over the duration of their working shift
10. Professional context questions (questions relating to their occupational role, working conditions, shift duration, amount of patient contact and the impact of COVID-19 on their ability to maintain healthy fluid intake at work)

____

Previous secondary outcome measures:

Measured at T1 and T2:
1. The Professional Quality of Life – Version 5 (ProQOL-5) to assess coping competence, burnout, secondary traumatic stress and compassion satisfaction (Stamm, 2009)
2. The Profile of Emotional Competence (PEC) as a self-reported measure of intra- and inter-personal emotional competence and global emotional intelligence (Brasseur, Grégoire, Bourdu, & Mikolajczak, 2013)
3. The Almost Perfect Scale-Revised Short Form (APS-R SF) to assess attitudes towards others, themselves and their performance, orthogonally measuring the maladaptive and adaptive aspects of perfectionism (Slaney et al., 2001)
4. The Diagnostic Thinking Inventory (DTI) which is a widely applied self-assessment tool used to determine clinical diagnostic reasoning in doctors at all stages of their career. The DTI assesses two clinical reasoning domains: knowledge structure in memory and flexibility in thinking (Bordage, Grant & Marsden, 1990)
5. The Lifestyle Appraisal Questionnaire (LAQ) as a comprehensive assessment of lifestyle (Craig, Hancock & Craig, 1996)
6. The Daily Stress Inventory (DSI) items measure a 24-hour period and three daily scores are derived on the number of events, the sum of the impact of the events, and the average impact rating of the events (Brantley, Waggoner, Jones & Rappaport, 1987)
7. N-back Letters Tasks (level 2 and 3), tasks will be used as a cognitive assessment to measure performance of a part of working memory and working memory capacity
9. Reagent Labstick’s: urinary pH (UpH) as a measure of physiologic and psychological stress
10. Urine colour (Ucolour) will be analysed using an NHS 8-level colour chart
11. Fluid record based on the volume and type of fluid consumed over the duration of their working shift
12. Professional context questions (questions relating to their occupational role, working conditions, shift duration, amount of patient contact and the impact of COVID-19 on their ability to maintain healthy fluid intake at work)
Overall study start date15/11/2020
Overall study end date15/03/2023

Eligibility

Participant type(s)Health professional
Age groupAdult
SexBoth
Target number of participantsA minimum of 30 participants are required for this study
Total final enrolment61
Participant inclusion criteriaHealthy adult volunteers currently in employment as a doctor by the National Health Service in the United Kingdom, and have access to a private home laptop or PC to complete the online testing.
Participant exclusion criteria1. Pregnant, or breastfeeding
2. Current renal, cardiac, pulmonary, hepatic, digestive, thyroid, neurological or haematological disease, in addition to anyone taking medications (either prescribed or over-the-counter) that influence weight, fluid, or electrolyte balance
Recruitment start date15/02/2021
Recruitment end date01/09/2022

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

The University of Reading School of Psychology
Harry Pitt Building
Whiteknights
University of Reading
Reading
RG6 6AH
United Kingdom

Sponsor information

University of Reading
University/education

Whiteknights
Reading
RG6 6AH
England
United Kingdom

Phone +44 (0)118 378 8523
Email pcls@reading.ac.uk
Website https://www.reading.ac.uk/pcls/
ROR logo "ROR" https://ror.org/05v62cm79

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date15/12/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file 01/03/2021 No No

Additional files

ISRCTN79051745_PROTOCOL_no_date.docx
uploaded 01/03/2021

Editorial Notes

11/10/2022: The following changes were made to the trial record:
1. The overall end date was changed from 01/10/2022 to 15/03/2023.
2. The intention to publish date was changed from 01/12/2022 to 15/12/2023.
3. The plain English summary was updated to reflect these changes.
4. The total final enrolment was added.
11/07/2022: The recruitment end date has been changed from 01/07/2022 to 01/09/2022.
08/11/2021: The following changes were made to the trial record:
1. The recruitment end date was changed from 01/11/2021 to 01/07/2022.
2. The overall end date was changed from 01/01/2022 to 01/10/2022.
3. The intention to publish date was changed from 15/05/2022 to 01/12/2022.
4. The plain English summary was updated to reflect these changes.
14/04/2021: Internal review.
01/03/2021: The following changes were made to the trial record:
1. The protocol (not peer reviewed) Version n/a, no date, was uploaded to the study record. The protocol document was provided to the ISRCTN editorial team on 10/02/2021.
2. The secondary outcome measures were updated to correct an error made previously by the ISRCTN editorial team.
10/02/2021: Trial’s existence confirmed by University of Reading