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Table 4 Main determinants of a significant variation of the PCQ score during follow-up (multivariate analysis, general linear model; n = 832)

From: CT scan screening is associated with increased distress among subjects of the APExS

Variables ΔPCQa,bMean increase 95% CI P value
Gender -   0.1678
Males + 2.75 1.95, +3.54  
Females +1.64 -0.05, +3.33  
Smoking status -   0.0646
Non smokers +1.71 +0.71, +2.71  
Former Smokers +1.70 +0.57, +2.83  
Smokers +3.17 +1.49, +4.85  
Age (years) -   0.7027
< 60 +1.91 +0.91, +2.91  
60-75 +1.99 +0.95, +3.04  
> 75 +2.67 +0.78, +4.57  
Self-assessment of asbestos exposure -   0.0095
Nil/light +1.69 +0.11, +3.26  
Moderate +1.38 +0.22, +2.55  
Heavy +2.86 +1.64, +4.08  
Do not know +2.84 +1.60, +4.07  
Counseling visit    0.2942
No +1.96 +0.75, +3.16  
Yes +2.43 +1.34, +3.52  
CT scan results -   0.0039
Normal +1.40 +0.11, +2.69  
Isolated pulmonary nodules (only) +1.88 +0.34, +3.42  
Pleural plaques (only) +3.60 +2.15, +5.06  
Asbestosis (with or without pleural plaques) +2.52 +0.80, +4.24  
Other diseases (only) +1.76 +0.46, +3.06  
Two or more of the above lesions +3.37 +1.39, +5.34  
Unknown results +0.83 -0.50, +2.17  
  1. a ΔPCQ is defined as the PCQ at T2-PCQ at T1 difference
  2. b Means are adjusted for gender, age, smoking status, counseling visit and self-assessment of asbestos exposure