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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: J Invest Dermatol. 2019 Apr 5;139(9):1898–1905.e2. doi: 10.1016/j.jid.2019.02.033

e-Table 2.

Baseline demographic and treatment characteristics and associations with performance of Skin Self-Exam (SSE) and Physician Skin Exam (PSE)

N
SSE vs Neither
PSE vs Neither
Both vs Neither
P-value
aRRR* 95% CI aRRR 95% CI aRRR 95% CI
Confidence in ability to take care of health
 Very 474 1.00 REF 1.00 REF 1.00 REF 0.09
 Somewhat/A little/Not at all 252 0.64 (0.37,1.12) 0.75 (0.4,1.43) 0.51 (0.27,0.96)
Confidence in asking for skin exam once a year
 Extremely confident 221 1.12 (0.52,2.4) 6.76 (2.59,17.63) 5.43 (2.26,13.04)
 Quite confident 305 1.27 (0.65,2.49) 1.74 (0.68,4.45) 1.58 (0.67,3.73)
 Somewhat confident 127 1.00 REF 1.00 REF 1.00 REF < 0.001
 A little confident 43 1.40 (0.49,4) 1.04 (0.19,5.85) NA NA
 Not at all confident 24 NA NA 0.51 (0.05,5.18) 0.54 (0.06,4.74)
Confidence in telling difference between
melanoma and freckles/moles
 Extremely confident/Quite confident 106 1.33 (0.66,2.67) 2.05 (0.87,4.8) 1.84 (0.89,3.81)
 Somewhat confident 209 1.00 REF 1.00 REF 1.00 REF < 0.001
 A little confident/Not at all confident 407 0.24 (0.14,0.43) 0.67 (0.36,1.25) 0.34 (0.19,0.61)
Important to regularly check skin
 Strongly disagree/Disagree/Neither 115 1.00 REF 1.00 REF 1.00 REF < 0.001
 Agree or Strongly agree 605 7.54 (2.61,21.79) 2.45 (1.05,5.74) 11.31 (2.67,47.87)
I can do a thorough check
 Strongly agree 76 1.25 (0.5,3.15) 2.62 (0.84,8.18) 5.80 (2.26,14.87)
 Agree 283 1.59 (0.86,2.91) 2.37 (1.04,5.43) 2.35 (1.08,5.14)
 Neither 149 1.00 REF 1.00 REF 1.00 REF < 0.001
 Disagree 175 0.54 (0.25,1.17) 1.59 (0.65,3.89) 0.86 (0.34,2.16)
 Strongly disagree 37 0.29 (0.06,1.38) 2.80 (0.77,10.2) 2.04 (0.55,7.63)
I know what I am looking for
 Strongly agree 38 2.68 (0.85,8.46) 3.68 (0.85,16.02) 6.00 (1.9,18.93)
 Agree 215 1.31 (0.71,2.43) 2.64 (1.22,5.7) 1.76 (0.93,3.33)
 Neither 166 1.00 REF 1.00 REF 1.00 REF < 0.001
 Disagree 214 0.48 (0.25,0.93) 1.12 (0.51,2.48) 0.12 (0.04,0.32)
 Strongly disagree 88 0.10 (0.03,0.37) 0.33 (0.08,1.33) 0.09 (0.02,0.4)
Hard to remember
 Strongly agree 65 0.43 (0.14,1.28) 1.04 (0.38,2.88) 0.00 (0,Inf)
 Agree 240 0.87 (0.43,1.74) 1.46 (0.7,3.01) 1.14 (0.52,2.52)
 Neither 167 1.00 REF 1.00 REF 1.00 REF < 0.001
 Disagree 165 2.06 (1.03,4.13) 1.27 (0.53,3.01) 2.95 (1.32,6.6)
 Strongly disagree 79 5.24 (2.14,12.8) 2.05 (0.59,7.16) 14.33 (5.53,37.14)
Likelihood of developing skin cancer compared to average person your age
 Less likely 74 1.77 (0.81,3.9) 0.80 (0.21,3.1) 0.71 (0.22,2.31)
 About as likely 289 1.00 REF 1.00 REF 1.00 REF 0.005
 More likely 294 1.23 (0.71,2.11) 2.16 (1.16,4.04) 2.18 (1.25,3.8)
 Much more likely 69 1.23 (0.52,2.96) 4.35 (1.79,10.58) 1.40 (0.51,3.86)
Chance of developing skin cancer in the future
 Very unlikely 42 0.83 (0.29,2.34) 1.17 (0.34,4.07) 0.18 (0.02,1.44)
 Unlikely 166 0.60 (0.32,1.11) 0.80 (0.39,1.66) 0.62 (0.32,1.2)
 Moderate chance 391 1.00 REF 1.00 REF 1.00 REF 0.03
 Likely 95 0.83 (0.38,1.83) 1.91 (0.89,4.12) 1.28 (0.59,2.76)
 Very likely 29 1.65 (0.5,5.39) 3.25 (0.93,11.38) 3.62 (1.15,11.42)
Being diagnosed with skin cancer would be
 Not at all serious 6 1.30 (0.11,14.83) NA NA 2.40 (0.22,26.03)
 A little serious 60 0.50 (0.15,1.61) 0.53 (0.18,1.54) 0.39 (0.11,1.45)
 Somewhat serious 189 1.00 REF 1.00 REF 1.00 REF 0.003
 Quite serious 246 1.82 (0.95,3.51) 1.37 (0.7,2.68) 2.10 (1.08,4.07)
 Very serious 223 1.91 (1,3.65) 0.72 (0.34,1.54) 1.26 (0.62,2.56)
*

Adjusted for variables in Table 2- Sex, education, age (years), race/ethnicity, skin type, age at diagnosis, diagnosis, chemotherapy (yes/no), Highest CTCAE Grade Chronic Condition, maximum radiotherapy dose, patient activation.