Table 2

Multiple Linear Regression Analyses and Bootstrapping Tests of Indirect Effects of Correlates of Sunscreen Use

Variables

Model R2

b (95% CI)

p Value

Point Estimate (95% CI) for Indirect Effect Mediated by Sunscreen Intentions


Demographics and Individual Differences

.17

Sexa

-0.38 (-0.64, -0.12)

.004

-0.14 (-0.28, -0.02)

High school grade

-0.05 (-0.15, 0.04)

.291

Raceb

0.03 (-0.36, 0.42)

.891

Fitzpatrick skin type

-0.25 (-0.35, -0.16)

< .001

-0.08 (-0.14, -0.03)

Know someone diagnosed with skin cancer

-0.10 (-0.36, 0.16)

.429

Knowledge of skin cancer and its prevention

0.06 (-0.03, 0.14)

.187

Behavioral Beliefs and Outcome Evaluations

.34

Sunscreen benefits

0.58 (0.41, 0.74)

< .001

0.13 (0.06, 0.23)

Importance of protecting skin

0.28 (0.18, 0.39)

< .001

0.07 (0.03, 0.14)

Perceived risk of skin cancer/premature aging

0.11 (-0.01, 0.23)

.069

Perceived severity of skin cancer/premature aging

0.05 (-0.10, 0.20)

.523

Appearance orientation

0.10 (-0.07, 0.26)

.264

Health consciousness

-0.03 (-0.16, 0.10)

.640

Normative Beliefs

.12

Sunscreen user prototype

0.15 (0.04, 0.27)

.008

0.04 (-0.01, 0.10)

Tanning norms

-0.01 (-0.19, 0.18)

.954

Skin protection norms

0.01 (0.01, 0.02)

< .001

0.005 (0.002, 0.009)

Self-Efficacy

.30

Perceived behavioral control

0.09 (0.02, 0.17)

.019

0.00 (-0.02, 0.02)

Sunscreen self-efficacy

0.50 (0.37, 0.62)

< .001

0.17 (0.08, 0.29)

Body image self-efficacy

-0.15 (-0.29, 0.00)

.044

-0.01 (-0.06, 0.03)

Emotional coping self-efficacy

0.02 (-0.02, 0.05)

.247

Sunscreen Cues and Availabilityc

.28

Expected to wear it by parents/guardians

0.41 (0.07, 0.75)

.018

0.15 (0.02, 0.33)

Always bring some

0.73 (0.44, 1.01)

< .001

0.19 (0.07, 0.35)

Purposely brought some

0.20 (-0.08, 0.47)

.161

Happened to have some

-0.18 (-0.42, 0.07)

.165

Borrowed some from someone else

0.08 (-0.17, 0.32)

.535

Bought some because it was convenient to buy

0.33 (-0.02, 0.69)

.068

Bought some because it was inexpensive

0.06 (-0.28, 0.40)

.737


Note. b = unstandardized regression coefficient; CI = confidence interval. a Sex was coded as female = 1, male = 2. b Race was coded as minority = 1, non-minority = 2. c Each variable was coded as no = 0, yes = 1.

Heckman and Coups BMC Public Health 2011 11:679   doi:10.1186/1471-2458-11-679

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