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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Eur Radiol. 2019 Apr 1;29(10):5367–5377. doi: 10.1007/s00330-019-06168-x

Table 1:

Subject and nodule demographics of study cohorts.

Cohort Demographics Malignant Benign
Research Number of Subjects 80 237
Age (years)
(Mean, Range)		 64.0
(41–87)		 62.1
(40–86)
Sex 54F : 26M 113F : 124M
Pack-years
(Mean, Range)		 40.7
(0–80)		 15.8
(0–50)
Nodule Size
(Mean, Range)		 16.3mm
(4–30mm)		 9.2mm
(4–30mm)
< 6mm 5 59
≥ 6mm to < 8mm 6 56
≥ 8mm to < 15mm 27 92
≥ 15 mm 42 30
LDCT screening eligible
(Yes: No)		 48:32 85:152
Longitudinal Clinical Subjects 16 14
Age (years)
(Mean, Range)		 46.5
(23–64)		 61.1
(40–74)
Sex 9F : 7M 10F : 4M
Pack-years
(Mean, Range)		 21.2
(0–50)		 14.2
(0–25)
Nodule Size
(Mean, Range)		 18.9mm
(3–48mm)		 13.3mm
(3–29mm)

Definition of abbreviations: F = female, M = male, LDCT = low-dose computed tomography

a

: LDCT screening eligibility criteria based on age between 55 and 80, and ≥ 30 pack years who currently smoke or have quit within the past 15 years.