Perceived Skin Cancer Risk among a Community-Based Sample of Black Adults

Transcription

Perceived Skin Cancer Risk among a Community-Based Sample of Black Adults
Perceived Skin Cancer Risk among a
Community-Based Sample of Black Adults
Latrice C. Pichon, PhD, MPH, Irma Corral, PhD, MPH, Hope Landrine, PhD,
Joni A. Mayer, PhD, Denise Adams-Simms, MPH
31st Annual Meeting of the Society of Behavioral Medicine
Seattle, Washington
Health Behavior Theory
• Construct: perceived risk
• Def: ↑ perceived risk, ↑ health protective
behaviors
I think I am at risk for disease X
Thus, I will do Y to prevent X
Perceived Skin Cancer Risk
• White Adults
– 13% to 25% Perceived High Risk
– ↑Incidence MM and NMSC
– ↑Sun Exposure
• Predictors
– Family or Personal History
– Sun Sensitive Skin
– Gender
– Sunscreen Use
Role of Perceived Skin Cancer Risk in
Sun Protection Behaviors
• Whites
– Family History of MM
• ↑ risk and ↑ sun protection (+)
– College Students
• ↑ risk and ↓ sun protection (-)
• Blacks
– ↓ perceived skin cancer risk
– ↓ sun protection behaviors
– Unknown/untested relationship
Study Purpose
• Explore the relationship between perceived
skin cancer risk and sun protection behaviors
among self-identified Blacks
• A relationship is unknown for Blacks
Research Questions
•
Was perceived skin cancer risk associated
with …
–
–
–
–
Demographic factors?
Prior cancer diagnosis?
Skin type?
Sunscreen use?
Academic-Community Partnership
• Partners
– California Black Health Network (CBHN)
– San Diego State University (SDSU)
• Participatory Process
– External Funding
– Selection of Research Questions
– Study Design
– Recruitment
– Measures/Instrument
– Dissemination of Findings
Sampling Procedures
• Stratified, statewide, random sample
• 90% of CA Blacks reside in 7 Counties
– Northern: San Francisco, Oakland, Sacramento
– Southern: San Bernardino, Riverside, Los Angeles, San Diego
• Blacks were sampled from cities with
probability proportional to their representation
– e.g., 42% live in L.A.; hence, 42% of sample came from L.A.
Sampling Procedures
• Stage 1:
– 20 census tracts (CTS) randomly selected
• Stage 2:
– Block groups within CTS were randomly selected
• Stage 3:
– All homes were sampled until 100-125
participants had been obtained from each CT
***Refusal Rate ≤3%***
Inglewood, CA; CT 6008.01
Inglewood, CA; CT 6008.01
Survey Procedures
• Black Surveyors (CBHN/SDSU) • Eligibility
– Door-to-door in teams
– Weekends during daylight
– Script and Letter
•
91-item health survey
— 7th grade readability
— Anonymous
— Options:
1) Self-administered
2) Read to participant
– Self-identified Black
– ≥18 years
– 1 adult/household
Skin Cancer Risk Perception1
• On a scale of 0 to 100, what do you think your
chances of getting skin cancer are, where 0 is
no chance of getting skin cancer, and 100
means you will definitely get it?
1McGregor
et al., 2004
Sunscreen Use1
During the summer months, how often do you do the following when you are out in the sun for
more than 15 minutes?
Never
Wear sunscreen with
SPF of 15 or higher
1
Sometimes About half the time Often Always
2
3
4
5
1Mayer
et al., 2007
Skin Type1
Which of the following best describes your skin’s
usual reaction to your first exposure to summer sun,
without sunscreen, for one-half hour at midday?
–
–
–
–
–
Type I: Always burn, unable to tan
Type II: Usually burn, then can tan if I work at it
Type III: Sometimes mild burn, then tan easily
Type IV: Rarely burn, tan easily
None of the above describes me
1Galindo
et al., 2007
Characteristics of Study Participants (N = 1,932)
>HS
%
>$26,000
1On
a scale of 0 to 100, what do you think your chances of
getting skin cancer are, where 0 is no chance of getting skin
cancer, and 100 means you will definitely get it?
%
(0)
(1-25)
(26-74)
(100)
1
McGregor et al., 2004
1During
the summer months, how often do wear sunscreen with
an SPF of 15 or higher when you are out in the sun for more than
15 minutes?
70
62.7
60
50
%
40
30
20
10
17.7
6.3
6.7
6.6
Often
Always
0
Never Sometimes Half the
time
1Mayer
et al., 2007
1Which
of the following best describes your skin’s usual reaction
to your first exposure to summer sun, without sunscreen, for onehalf hour at midday?
70
59.1
60
50
% 40
27.8
30
20
9.5
10
0
1.5
Type I
2.5
Type II
High Sun Sensitivity
Type III
Type IV
None
Low Sun Sensitivity
1Galindo
et al., 2007
Summary
• Low perceived skin cancer risk among Black
adults
• No relation between perceived skin cancer
risk and demographic factors
• Sun sensitivity and a personal history of
cancer contributed to higher perceived risk
• Lack of association between perceived skin
cancer risk and sun protection behaviors
Recommendations for Future
Research
• Measurement
– Behavioral anchor on the perceived skin cancer risk
survey item e.g., If you do not engage in sun protection behaviors,
what are your chances of getting skin cancer?
– Cultural correlates of risk perception and
sunscreen use e.g., acculturation, structural-environmental
factors
• Prevention
– Culturally-tailored skin cancer prevention programs
– Linking sunscreen use with other types of
prevention messages
Acknowledgements
• California Black Health Network
– Uzoma Mmeje, Jo Eure, Gayle Watts, Twila Laster, Diane
Ake, and Julie Waters
• San Diego State University
– Ivory Veley, Chassie Jualo, Jonathan Martinez, Danica
Aniciete, Yavette Vaden, Isabel Altarejos, Renata Harpster,
Maria Flores, Norval Hickman, Michael Hunt, and Arianna
Aldridge
– Drs. Gregory Norman, James Sallis, John Elder, Linda Hill,
and Lisa Madlensky
Any Questions?