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Table 3 Comparison of the PMT variables and adopting skin cancer preventive behaviors before and after the intervention in the intervention and the control group

From: Can adopting skin cancer preventive behaviors among seafarers be increased via a theory-based mobile phone-based text message intervention? A randomized clinical trial

Variables Intervention group p-value* Control group p-value* p-value**
Before
intervention
After
intervention
Before
Intervention
After
intervention
Perceived vulnerability 25.80 ± 3.41 27.53 ± 3.04 0.002 25.67 ± 2.82 26.75 ± 3.02 0.01 0.14
Perceived severity 24.24 ± 4.03 27.80 ± 6.74 0.001 24.29 ± 3.37 26.22 ± 3.77 0.001 0.09
Response costs 32.40 ± 6.15 26.76 ± 7.47 < 0.0001 29.00 ± 5.83 29.57 ± 6.82 0.54 0.05
Response efficacy 18.21 ± 4.12 20.83 ± 3.37 < 0.0001 18.13 ± 3.32 20.55 ± 3.21 < 0.0001 0.64
Fear 11.95 ± 0.27 14.98 ± 3.5 < 0.0001 11.87 ± 0.62 12.18 ± 0.42 0.001 0.001
Perceived self-efficacy 35.93 ± 9.89 42.24 ± 5.47 < 0.0001 37.10 ± 7.01 40.00 ± 5.86 0.002 0.01
Perceived rewards 11.87 ± 3.56 9.35 ± 2.78 < 0.0001 12.02 ± 3.27 11.13 ± 4.91 0.20 0.01
Protection motivation (or behavioral intention) 19.66 ± 4.84 21.33 ± 4.15 0.01 19.27 ± 4.88 19.72 ± 4.12 0.49 0.02
Adopting skin cancer preventive behaviors 17.26 ± 5.79 21.18 ± 4.66 < 0.0001 17.23 ± 6.30 18.58 ± 3.99 0.07 0.001
  1. Values are Mean ± SD.
  2. * Result of the Student paired-samples t test (within-groups comparison)
  3. **Result of the Analysis of Covariance (between-groups comparison)
  4. p ≤ 0.05 significant