ISRCTN ISRCTN99837874
DOI https://doi.org/10.1186/ISRCTN99837874
Secondary identifying numbers LIO-14711
Submission date
23/04/2019
Registration date
26/04/2019
Last edited
12/06/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
In light of increasing skin cancer incidences worldwide, preventive measures to promote sun protection in individuals with risky sun habits have continued relevance and importance. The efficacy of tailored sun protection advice has been studied in different settings, with varying results, of which primary care is one important provider previously identified. However, evidence on long-term sustainability of the effect of such advice given is lacking.
Aim: To report the long-term effect of individualised sun protection advice given in primary healthcare (PHC), on sun habits/sun protection behaviour, and attitudes towards sunbathing.

Who can participate?
Patients > 18 years of age visiting the study primary health care centre during the recruitment period.

What does the study involve?
All participant completed a questionnaire mapping sun habits and attitudes towards sunbathing, and were then randomised to three possible interventions: 1) Individualised, written sun protection advice, 2) Individualised sun protection advice mediated orally by a GP, and 3) Individualised sun protection advice mediated orally by a GP and performance of a skin phototest for assessment of individual ultraviolet skin sensitivity.

What are the possible benefits and risks of participating?
All participants were given individualised sun protection advice based on their personal risk profile with regard to skin cancer, advice that in case followed, would be likely to be beneficial in terms of reducing ultraviolet exposure risks, or at least lead to increased awareness. Since the intervention did not include any kind of invasive, sensitive or integrity intruding elements, there was no obvious risk for the participants for taking part in the study. The phototest performed in one of the intervention groups comprised the illumination of ultraviolet radiation on very small, well-defined skin areas, insufficient to cause any harm or increased skin cancer risk.

Where is the study run from?
Kärna Primary Healthcare centre, Linköping, Sweden

When is the study starting and how long is it expected to run for?
February 2005 for 3 weeks

Who is funding the study?
Region Östergötland, Sweden

Who is the main contact?
Dr Magnus Falk (scientific contact), magnus.falk@liu.se

Contact information

Dr Magnus Falk
Scientific

Dept of Medical & Health Sciences
Linkoping University
Linköping
581 83
Sweden

ORCiD logoORCID ID 0000-0001-6688-3860
Phone +46 13 28 69 39
Email magnus.falk@liu.se

Study information

Study designSingle center Interventional randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)GP practice
Study typePrevention
Participant information sheet ISRCTN99837874_PIS_24Apr2019.pdf
Scientific titleSkin cancer prevention in primary care - a randomised study
Study objectives1. Sun protection advice given in a primary care setting is more effective in reducing individual ultraviolet exposure if mediated orally by a general practitioner in comparison with solely written information.
2. Addition of an ultraviolet photo test to the oral information contributes to reinforce the sun protection advice given.
Ethics approval(s)Approved 15/12/2004, The Regional Ethical Review Board in Linköping (Etikprövningsmyndigheten, Box 2110, 750 02 Uppsala, Sweden; registrator@etikprovning.se; +4610-475 08 00) ref: Dnr. M187-04.
Health condition(s) or problem(s) studiedSun exposure habits with regard to skin cancer
InterventionThe participants were consecutively computer-randomised to the three intervention groups, at registration in the reception of the healthcare centre. All participants completed a questionnaire mapping sun exposure habits, attitudes towards sunbathing and propensity to increase sun protection.
Interventions given:
All groups: A brief written, general sun protection advice information sheet.
Group 1: Written, individualised sun protection advice based on the questionnaire responses, mediated in letter-form.
Group 2: Individualised sun protection advice based on the questionnaire responses, mediated orally in the form of a personal GP’s consultation, taking approximately 20 minutes, including a nevi check.
Group 3: The corresponding intervention as in Group 2 but also including a skin phototest for estimation of individual ultraviolet sensitivity with feedback of the test outcome.
Intervention typeBehavioural
Primary outcome measureSun exposure habits, measured by a questionnaire based of a number of 5-grade Likert scored question, reflecting frequency and degree of sun exposure and protection, and five questions measuring propensity to increase sun protection based on the transtheoretical model of behaviour change. Measurement time points: Baseline (at study start, prior to intervention), after 6 months, 3 years and 10 years.
Secondary outcome measuresSecondary outcome variable: Attitudes towards sunbathing, measured by a number of 5-grade Likert scored questions. Measurement time points: Baseline (at study start, prior to intervention), after 6 months, 3 years and 10 years.
Overall study start date01/09/2004
Completion date30/10/2015

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants300
Total final enrolment316
Key inclusion criteria1. Patients > 18 years of age visiting the study primary health care centre during the recruitment period.
Key exclusion criteria1. Abnormal UV-sensitivity
2. Intake of UV-sensitising medication
3. Cognitive impairment
Date of first enrolment01/02/2005
Date of final enrolment25/02/2005

Locations

Countries of recruitment

  • Sweden

Study participating centre

Kärna Primary Healthcare centre
Kärnabrunnsgatan 10
Linköping
58662
Sweden

Sponsor information

County Council of Östergötland
Hospital/treatment centre

Region Östergötland
Linköping
58185
Sweden

Phone +46101030000
Email anna-lena.nylander@regionostergotland.se
Website www.regionostergotland.se
ROR logo "ROR" https://ror.org/0326gsy75

Funders

Funder type

Government

Länsstyrelsen Östergötland

No information available

Results and Publications

Intention to publish date01/06/2019
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planHalf-year results were published in 2008, 3-year results in 2011. 10-year results are intended to be published in 2019.
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?
Results article results 01/12/2008 Yes No
Results article results 01/09/2011 Yes No
Participant information sheet 24/04/2019 23/05/2019 No Yes
Results article 10 year follow up 01/10/2019 12/06/2023 Yes No

Additional files

ISRCTN99837874_PIS_24Apr2019.pdf
Uploaded 23/05/2019

Editorial Notes

12/06/2023: Publication reference added.
23/05/2019: The participant information sheet was uploaded.
24/04/2019: Trial’s existence confirmed by The Regional Ethical Review Board in Linköping