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Table 1 Intervention care content specified by behaviour change techniques and linked to constructs of the HAPA model

From: Intervention to enhance adherence to mandibular advancement appliance in patients with obstructive sleep apnoea: study protocol for a randomised clinical trial

Time

Point

Intervention component

Behaviour change technique

HAPA construct targeted

Content

T(1)

Pamphlet

Information about consequences

Risk perception and outcome expectancy

The health pamphlet (Additional file 1), based on HAPA, divided into 6 sections, systematically provides information about the risk, benefits and treatment of OSA.

Section 2 and 4 of the pamphlets provides spaces for the participants to discuss about risks and benefits that concern them the most.

Section 3 explains the various treatments available and a brief explanation of the mechanism of the treatment.

Action planning

Task self-efficacy

Sections 5 and 6 provide valuable information for participants on how to begin with using the appliance and to continue using it regularly. Patients are advised that is normal to struggle at time when starting a new habit and setting short-term attainable goals will aid them in their struggles to adjust. The section suggests participants to seek feedback from their family, especially their sleeping partner regarding their improvement. This type of support motivates the patient to work more towards achieving their goals.

Goal setting

Problem-solving

Social support (unspecified)

Self-reward

Coping and recovery self-efficacy

In section 6, participants are told about the importance of rewarding themselves about the effort they put in to achieve their goals.

Relapse prevention

Recovery self-efficacy

Section 6 also advises the participants to focus on the positives and think about situations that effect their capability and then about options to avoid/cope with these situations.

T(1)

Video

Credible source

Risk perception, outcome expectancy and task and coping self-efficacy

Patients will be shown a video [50] of an OSA patients who are undergoing treatment, in order for them to relate to someone who is going through the same condition as him/her.

The video consists of patients talking about how OSA effected their life and its negative consequences.

The patients will also talk about what motivated them to start the treatment, how has it changed their life and what does they do to use the appliance regularly. It will also consist of a specialist in the field of OSA, briefly talking about the ill effects of untreated OSA and the specific oral appliance treatment available.

Social comparison

Information about the negative and positive consequences

Demonstration of behaviour

Feedback on the behaviour

Social support (emotional and practical)

T(1)

Counselling

Information about health consequences

Risk perception, outcome expectancy and task self-efficacy

Participants will be given an initial counselling session in person along with their partner if they wish. During the session i.e. structured to fit the participants needs…

• Their knowledge regarding OSA will be assessed

• The above video will be shown

• Using the information provided on the pamphlets the risks of untreated OSA and the benefits of the treatment will be discussed

• If the partner is present at the appointment, they will be asked to complete a section of the pre- screening questionnaire which is part of the routine clinical examination. In the questionnaire, the partner will also be asked to indicate their and the participant’s quality of sleep. In addition, the partner will also be asked to indicate the severity of the participant’s snoring and whether it has an influence on their sleep.

Social Support (unspecified and emotional)

Verbal persuasion about capability

T(2), T(3), T(4) and T(5)

Follow up at sleep clinic

Monitoring the behaviour and the outcome

Coping and recovery self-efficacy

Participants would be required to visit the sleep clinic for follow up at months 3 and 6. Their MAA usage will be assessed both objectively and subjectively by downloading the data from the micro-sensor chip embedded in the appliance and by recording the hours from their daily sleep log respectively.

Focus on past success and verbal persuasion about capability

Coping and recovery self-efficacy

Feedback would be provided depending on the participant’s usage. Their planning sheets would be discussed, and appropriate feedback will be provided whilst encouraging them to set more active goals and plans.

Social comparison

Coping and recovery self-efficacy

To increase their emotional support other patient’s feedbacks and successful treatment would be shared.

Problem-solving

Coping and recovery self-efficacy

Additionally, participants will be prompted to identify common factors that act as barriers for them in using the appliance and will be helped to find solutions to overcome such factors tailored to the participants needs.

3, 6, 18, and 21 weeks

Booster phone calls

Verbal persuasion about capability

Coping and recovery self-efficacy

Participants will receive calls at weeks 3, 6, 18 and 21 approximately 10–15 min in duration, prompting them to keep working towards their goals and stating that they are capable of achieving them.

Social support unspecified

Coping and recovery self-efficacy

Participant’s partner’s experience of the treatment will also be discussed by asking them to share their thoughts on the participant’s improvement.

Problem-solving

Coping and recovery self-efficacy

Additionally, participants will be prompted to identify common factors that act as barriers for them in using the appliance and will be helped to find solutions to overcome such factors tailored to the participants needs.