Table 2 Schedule of study parameters and collection time points

 Eligibility screen

X

 Informed consent

X

 Allocation

X

Intervention arm:

  Saliva sample

X

  Personalised melanoma genetic risk booklet

X

  Phone call from genetic counsellor

X

  Educational booklet on melanoma preventive behaviours

X

  Educational booklet on melanoma preventive behaviours

X

  Demographics

X

  Melanoma risk factors

X

  Sun exposure (objective measure)

X

X^b

X

  Sun exposure (self-report)

X

X

X

  Sun-protection behaviours

X

X

X

  Skin examination behaviours

X

X

X

  Intentions, beliefs and attitudes towards sun-protection behaviours and skin examinations

X

X

X

  Discussion about sun protection and skin examinations with family

X

X

X

  Perceived social norms about sun protection and skin examination

X

  Perceived melanoma risk

X

X

X

  Skin-cancer related worry

X

X

X

  Perceived control over the development and early detection of future melanomas

X

X

X

  Risk taking behaviours (Domain-Specific Risk-taking scale (DOSPERT))

X

  Psychological distress and well-being (MHI-5)

X

X

X

  Confidence in completing medical forms

X

  General health

X

  Satisfaction with educational booklet on melanoma preventive behaviours, and amount read by participants

X

X

  Out-of-pocket costs for sun-protection items

X

X

  Visits to health care professionals

X

X

  Private health insurance

X

X

  Use of medications that may increase risk of melanoma or skin sensitivity to sunlight

X

X

X

  Importance of health

X

  Confidence in understanding medical information

X

  Reasons for participating in the study

X

  Receiving advice from health professional regarding sun protection and skin checks

X

X

X

  Information seeking about skin cancer and genetics

X

X

X

  Use of the study website

X

X

X

  Use of applications related to sun protection or skin examinations

X

  Recalling personal genetic risk

X

X

  Communication with family, friends and health professionals about genetic risk

X

X

  Motivation and barriers to communication about genetic risk

X

X

  Satisfaction with genetic risk booklet and genetic counselling

X

X

  Understanding of genetic risk information, and amount read by participants

X

X

  Multidimensional impact of cancer risk assessment

X

X