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Measuring Real Time Decision-Making About Ultraviolet Radiation (UVR) Protection

Measuring Real Time Decision-Making About UVR Protection

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01004952
Enrollment
94
Registered
2009-10-30
Start date
2009-10-27
Completion date
2024-09-06
Last updated
2026-01-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Melanoma

Keywords

Skin, Sunscreen, UVR Protection, 09-137

Brief summary

The purpose of this study is to understand how people make decisions about sun protection. This study is important in helping to protect against sun exposure, since it is a main risk factor for melanoma. The investigators would like to understand the decisions people make about sun protection so that they can improve their ability to help individuals who may be at risk for melanoma.

Interventions

Phase I involves in-home interviews of 25 participants to understand the factors that affect participants' decision-making about UVR protection (sunscreen use, shade-seeking, hat use, use of protective clothing). In Phase II, we plan to recruit a sample of 60 melanoma first degree relatives (FDRs) and use an electronic narrative diary to record their daily behaviors about UVR protection. They will be asked to carry a interactive voice response (IVR) system for 14 days and they should be in the continental United States.

Sponsors

University of British Columbia
CollaboratorOTHER
San Diego State University
CollaboratorOTHER
Stony Brook University
CollaboratorOTHER
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* A first-degree biological relative (a child, sibling or parent) as per self report of an MSKCC follow-up surgical patient diagnosed with melanoma as per pathology report or clinician's judgment; * English-fluent; the surveys were designed and validated in English and are not currently available in other languages. Translation of questionnaires into other languages would require reestablishing the reliability and validity of these measures. Therefore, participants must be able to communicate in English to complete the surveys. * 18 years of age or older; * For Phase I only: FDRs who live within a 50 mile radius of MSKCC to make it feasible for Ms. Shuk to be able to arrive at each person's home for the in-home interview without the cost being prohibitive; * For Phase I only: Can recall a period when s/he was out in the sun for at least one hour on a sunny day this past summer 2009. * For Phase I only: Can recall a separate period when s/he was out in the sun for at least one hour on a sunny day this past summer 2009, but s/he was in a different location from the period referenced above. * For Phase II only: FDRs who self-report at least 1 consecutive hour in the morning (dawn to 12:30pm) and 1 consecutive hour in the afternoon (12:30-5pm) of daily (weekend and weekday) outdoor activities on the screening questionnaire

Exclusion criteria

* First-degree relatives of melanoma patients who report never using UVR protection; * Patient's who provide consent for Phase I will not be eligible for Phase II. * Any first-degree relative of a melanoma patient who already has a first-degree relative who consented to the study; * Unable to provide informed consent.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Interviewed on UVR Protection Behaviors.1 yearTo generate models explaining decision-making about four UVR protection behaviors (sunscreen use, shade-seeking, hat use, use of protective clothing) in melanoma FDRs. This was an inductive, qualitative study using an open-ended interview to accomplish the Aim. Cohort 1 was used for this Aim.

Secondary

MeasureTime frameDescription
To Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.1 yearTo examine theory-driven affective and cognitive predictors of UVR protection maintenance (sunscreen use, shade-seeking, hat use, and use of UVR protective clothing) assessed in real time. Phase 1 was not assessed for this Outcome Measure.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1: Phase I: 25 Melanoma FDRs
This study will involve two phases. Guided by EDTM, we will first build models of decision-making about UVR protection (sunscreen use, shade-seeking, hat use, use of protective clothing)using in-home ethnographic interviews with 25 melanoma FDRs (Phase I). In Phase II, we will test the validity of each composite model. This will be completed using EMA data collection with 60 different melanoma FDRs from Phase I who will report on their sunscreen use, shade-seeking, use of hat, and use of UVR protective clothing and decision-making regarding these outcomes via interactive voice response (IVR) system and audio narrative diaries (using a digital voice recorder). We will examine the validity of each model and examine the influence of theory-driven affective and cognitive predictors of UVR protection maintenance across time. screening questionnaire: Phase I involves in-home interviews of 25 participants to understand the factors that affect participants' decision-making about UVR protection (sunscreen use, shade-seeking, hat use, use of protective clothing). In Phase II, we plan to recruit a sample of 60 melanoma first degree relatives (FDRs) and use an electronic narrative diary to record their daily behaviors about UVR protection. They will be asked to carry a interactive voice response (IVR) system for 14 days and they should be in the continental United States.
25
Phase II: 60 Melanoma FDRs
This study will involve two phases. Guided by EDTM, we will first build models of decision-making about UVR protection (sunscreen use, shade-seeking, hat use, use of protective clothing)using in-home ethnographic interviews with 25 melanoma FDRs (Phase I). In Phase II, we will test the validity of each composite model. This will be completed using EMA data collection with 60 different melanoma FDRs from Phase I who will report on their sunscreen use, shade-seeking, use of hat, and use of UVR protective clothing and decision-making regarding these outcomes via interactive voice response (IVR) system and audio narrative diaries (using a digital voice recorder). We will examine the validity of each model and examine the influence of theory-driven affective and cognitive predictors of UVR protection maintenance across time. screening questionnaire: Phase I involves in-home interviews of 25 participants to understand the factors that affect participants' decision-making about UVR protection (sunscreen use, shade-seeking, hat use, use of protective clothing). In Phase II, we plan to recruit a sample of 60 melanoma first degree relatives (FDRs) and use an electronic narrative diary to record their daily behaviors about UVR protection. They will be asked to carry a interactive voice response (IVR) system for 14 days and they should be in the continental United States.
59
Total84

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up011
Overall StudyWithdrawal by Subject05

Baseline characteristics

CharacteristicCohort 1: Phase I: 25 Melanoma FDRsTotalPhase II: 60 Melanoma FDRs
Age, Continuous39 years45 years48 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants81 Participants57 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
25 Participants83 Participants58 Participants
Region of Enrollment
United States
25 Participants84 Participants59 Participants
Sex: Female, Male
Female
12 Participants50 Participants38 Participants
Sex: Female, Male
Male
13 Participants34 Participants21 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 250 / 59
other
Total, other adverse events
0 / 250 / 59
serious
Total, serious adverse events
0 / 250 / 59

Outcome results

Primary

Number of Participants Interviewed on UVR Protection Behaviors.

To generate models explaining decision-making about four UVR protection behaviors (sunscreen use, shade-seeking, hat use, use of protective clothing) in melanoma FDRs. This was an inductive, qualitative study using an open-ended interview to accomplish the Aim. Cohort 1 was used for this Aim.

Time frame: 1 year

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Phase I: 25 Melanoma FDRsNumber of Participants Interviewed on UVR Protection Behaviors.Number of participants interviewed25 Participants
Cohort 1: Phase I: 25 Melanoma FDRsNumber of Participants Interviewed on UVR Protection Behaviors.Number of participants not interviewed0 Participants
Phase II: 60 Melanoma FDRsNumber of Participants Interviewed on UVR Protection Behaviors.Number of participants interviewed0 Participants
Phase II: 60 Melanoma FDRsNumber of Participants Interviewed on UVR Protection Behaviors.Number of participants not interviewed59 Participants
Secondary

To Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.

To examine theory-driven affective and cognitive predictors of UVR protection maintenance (sunscreen use, shade-seeking, hat use, and use of UVR protective clothing) assessed in real time. Phase 1 was not assessed for this Outcome Measure.

Time frame: 1 year

Population: Phase 1 was not assessed for this Outcome Measure

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1: Phase I: 25 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Women who use sunscreen in cooler weather0 Participants
Cohort 1: Phase I: 25 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Men who skip sunscreen in cooler weather and in shade while wearing a hat0 Participants
Cohort 1: Phase I: 25 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Women who skip sunscreen in cooler weather and in shade while wearing a hat0 Participants
Cohort 1: Phase I: 25 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Men who skip sunscreen on sunny days and in shade while wearing a hat0 Participants
Phase II: 60 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Men who skip sunscreen on sunny days and in shade while wearing a hat10 Participants
Phase II: 60 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Women who use sunscreen in cooler weather9 Participants
Phase II: 60 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Women who skip sunscreen in cooler weather and in shade while wearing a hat23 Participants
Phase II: 60 Melanoma FDRsTo Examine Theory-driven Affective and Cognitive Predictors of UVR Protection Maintenance (Sunscreen Use, Shade-seeking, Hat Use, and Use of UVR Protective Clothing)Assessed in Real Time.Men who skip sunscreen in cooler weather and in shade while wearing a hat21 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026