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Table 3 Distribution of variation between subjects, observers and random noise per study

From: Reproducibility of semiautomated body composition segmentation of abdominal computed tomography: a multiobserver study

Compartment Subjects Observers Random noise
SD 95% CI SD 95% CI SD 95% CI
AMC
 Total 32.2 28.5–36.5 0.5 0.2–1.6 1.8 1.7–2.0
 Diabetes-study 29.3 23.6–36.5 0.4 0.0–1.3 1.6 1.4–1.8
 INFO-study 20.2 17.4–23.6 0.6 0.0–2.7 2.2 1.9–2.7
IMAT
 Total 7.3 6.5–8.3 1.0 0.5–2.5 1.6 1.4–1.7
 Diabetes-study 10.0 8.0–12.5 1.0 0.5–2.8 1.7 1.6–2.0
 INFO-study 2.5 2.1–3.0 0.8 0.3–2.0 1.2 1.0–1.4
VAT
 Total 71.6 63.3–81.2 1.4 0.7–4.2 2.6 2.4–2.9
 Diabetes-study 59.1 47.7–73.8 1.2 0.5–3.8 2.8 2.5–3.1
 INFO-study 60.1 51.7–70.1 1.8 0.8–7.0 2.2 1.9–2.6
SAT
 Total 130.3 114.8–148.2 0.7 0.3–2.0 1.9 1.7–2.1
 Diabetes-study 148.5 119.2–186.3 0.7 0.3–2.1 1.8 1.6–2.1
 INFO-study 89.7 76.8–105.1 0.9 0.3–3.8 1.9 1.7–2.3
  1. SD standard deviation, CI confidence interval, AMC abdominal muscle compartment, IMAT inter- and intramuscular adipose tissue, VAT visceral adipose tissue, SAT subcutaneous adipose tissue
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