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Table 2 Number of tests performed prior to diagnosis according to patients and nodule characteristics (median and range).

From: Management of SPN in France. Pathways for definitive diagnosis of solitary pulmonary nodule: a multicentre study in 18 French districts

Factor n No. tests prior to diagnosis p # p ##
Patient characteristics     
Age(yr)     
   35–65 52 3 (1–14) 0.43 0.02
   > 65 60 4 (1–21)   
Sex     
   Male 82 4 (1–21) 0.22 0.86
   Female 30 3 (1–12)   
Referral pattern     
   GP 18 2 (1–6) <0.01 <0.01
   Specialist 94 4 (1–21)   
History of smoking     
   Never smoked 33 2 (1–12) <0.01 <0.01
   Current or past smoker 79 5 (1–21)   
Nodule characteristics     
Calcification within the nodule     
   Yes 12 2 (1–14) 0.04 0.76
   No 100 4 (1–21)   
Spiculated nodule     
   Yes 32 5 (1–14) 0.02 0.01
   No 80 3 (1–21)   
Mediastinal involvement     
   Yes 31 4 (1–21) 0.4 0.19
   No 81 4 (1–12)   
  1. GP = General Practitioner.
  2. p # In Mann-Whitney test.
  3. p ## In multivariate Poisson regression model.