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Table 4 Factors favouring siblings' participation in colonoscopic screening according to multivariate logistic regression with cluster effect (n = 138).

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

  Adjusted OR 95% CI P
Less perceived barriers (score < 14) 3.2 [1.2 - 8.5] 0.022
Screening advised by a physician 4.9 [1.7 - 13.7] 0.0025
Centres practising colonoscopy perceived as more accessible (score ≥ 4 ) 3.2 [1.3 - 7.8] 0.011
Screening discussed with all brothers and sisters 3.9 [1.6 - 9.6] 0.0037
Belonging to a social group 2.6 [1.0 - 6.6] 0.044
Age (< 60 ans/≥ 60 ans) 1.7 [0.7 - 4.4] 0.26
Sex (female/male) 1.3 [0.6 - 3.0] 0.50
Level of education (≥ Baccalaureate/< Baccalaureate) 0.9 [0.3 - 2.7] 0.86
  1. Three variables were kept for adjustment in the final model: age, sex and education level. Intra-familial correlation coefficient of the residuals = 0.14.