Towards targeted dietary support for shift workers with type 2 diabetes (Shift-Diabetes study): A mixed-methods case study protocol

TY - JOUR

T1 - Towards targeted dietary support for shift workers with type 2 diabetes (Shift-Diabetes study): A mixed-methods case study protocol

AU - Gibson, Rachel

AU - Oliver, Nick

AU - McGowan, Barbara

AU - Vetter, Celine

AU - Palla, Luigi

AU - D'Annibale, Maria

AU - Linley, Jayne

AU - Lorencatto, Fabiana

AU - Guess, Nicola

N1 - Funding Information: The Shift‐Diabetes study is supported by Diabetes UK (grant number 19/0005979). Diabetes UK do not/will not have any role in the study design, management, data analysis and interpretation, writing of the report, or the decision to submit the report for publication. Publisher Copyright: © 2021 Diabetes UK

PY - 2021/10/6

Y1 - 2021/10/6

N2 - Background: Blood glucose is higher in people working night shifts compared to day workers. Changes to eating behaviour, activity and sleep patterns in addition to circadian disruption are likely to impact glucose management in night-shift workers with type 2 diabetes. Aim: To investigate current dietary intake and glucose variability during night work, including barriers and facilitators to dietary behaviour in this context. Methods: A mixed-methods case study will be conducted. Shift workers with type 2 diabetes working in a hospital setting will be recruited to this two-part study. Part 1: 70 participants will complete a 10-day observational study collecting data on continuous glucose, diet (self-report diary), sleep and physical activity during a period covering night work, rest days and non-night workdays. Mean glucose concentration and variability, and the mean healthy diet index score, will be compared between days of night work, non-night work and rest, after adjusting for other individual factors (sleep/physical activity/demographics). Part 2: A sample (n~13) will complete semi-structured interviews based on behavioural science frameworks to explore barriers/enablers to dietary behaviour when working night shifts. This will inform a quantitative survey to explore the generalisability of interview findings. Discussion: Findings from Part 1 and 2 will be triangulated to identify potential intervention strategies to address key barriers and enablers to healthier eating, and in turn improved glucose control, in shift workers with type 2 diabetes. This will be facilitated through stakeholder consultation and application of behavioural science frameworks. Shift-Diabetes study registration: ISRCTN11764942.

AB - Background: Blood glucose is higher in people working night shifts compared to day workers. Changes to eating behaviour, activity and sleep patterns in addition to circadian disruption are likely to impact glucose management in night-shift workers with type 2 diabetes. Aim: To investigate current dietary intake and glucose variability during night work, including barriers and facilitators to dietary behaviour in this context. Methods: A mixed-methods case study will be conducted. Shift workers with type 2 diabetes working in a hospital setting will be recruited to this two-part study. Part 1: 70 participants will complete a 10-day observational study collecting data on continuous glucose, diet (self-report diary), sleep and physical activity during a period covering night work, rest days and non-night workdays. Mean glucose concentration and variability, and the mean healthy diet index score, will be compared between days of night work, non-night work and rest, after adjusting for other individual factors (sleep/physical activity/demographics). Part 2: A sample (n~13) will complete semi-structured interviews based on behavioural science frameworks to explore barriers/enablers to dietary behaviour when working night shifts. This will inform a quantitative survey to explore the generalisability of interview findings. Discussion: Findings from Part 1 and 2 will be triangulated to identify potential intervention strategies to address key barriers and enablers to healthier eating, and in turn improved glucose control, in shift workers with type 2 diabetes. This will be facilitated through stakeholder consultation and application of behavioural science frameworks. Shift-Diabetes study registration: ISRCTN11764942.

UR - http://www.scopus.com/inward/record.url?scp=85118147667&partnerID=8YFLogxK

U2 - doi.org/10.1111/dme.14714

DO - doi.org/10.1111/dme.14714

M3 - Article

SN - 0742-3071

JO - Diabetic Medicine

JF - Diabetic Medicine

ER -