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Table 2 Univariate analysis of individual psychosocial factors of index patients' siblings and their association with participation in colonoscopic screening.

From: Determinants of participation in colonoscopic screening by siblings of colorectal cancer patients in France

  Total Participators Non-participators P
  (n = 172) (n = 114) (n = 58)  
Health Belief Model
   Perceived CRC vulnerability score (1 to 5) 3.5 (1.2) 3.7 (1.2) 3.1 (1.1) 0.0026
   Perceived CRC severity score (2 to 10) 7.7 (2.0) 7.8 (1.9) 7.5 (2.3) 0.27
   Perceived screening benefits score (6 to 30) 25.6 (4.4) 26.6 (3.6) 23.6 (5.2) 0.0004
   Perceived screening barriers score (6 to 30) 14.5 (6.0) 12.9 (5.6) 17.6 (5.6) < 10-4
   Score for motivation to safeguard health (7 to 35) 28.0 (4.6) 28.6 (4.4) 26.9 (4.8) 0.025
Fatalism score (4 to 20) 11.1 (4.9) 10.6 (4.8) 12.1 (4.8) 0.058
Theory of Reasoned Action
   Attitude score (perceived usefulness of screening) (1 to 5) 4.2 (1.2) 4.4 (1.2) 3.9 (1.1) 0.024
   Subjective norms(perceived social pressure to perform screening) 134 (88.7) 100 (98.0) 34 (69.4) < 10-4
   Other preventive or screening behaviours 158 (91.9) 105 (92.1) 53 (91.4) 1.0
Smoking status     0.038
   Non-smoker 109 (65.7) 79 (72.5) 30 (52.6)  
   Ex-smoker 36 (21.7) 19 (17.4) 17 (29.8)  
   Smoker 21 (12.6) 11 (10.1) 10 (17.5)  
  1. Quantitative variables: mean, (standard deviation). Qualitative variables: number (percentage)
  2. Missing data: Perceived vulnerability score (4), perceived severity score (3), perceived benefits score (8), perceived barriers score (6), motivation score (6), fatalism score (4), attitude score (10), subjective norms (21), smoking status (6).