Table 4.
Radiological data of patients with a follow-up available CT, grouped by quartile of mean diameter (reported in the first column).
| Quartile (diameter in mm) | n | Diameter baseline (mm) | Diameter follow-up (mm) | Δ Diameter (mm, 95% CI) | p-value vs. baseline | Attenuation value baseline (HUm) | Attenuation value follow-up (HUm) | Δ Attenuation value (HUm, 95% CI) | p-value vs. baseline |
|---|---|---|---|---|---|---|---|---|---|
| 1st (8–14.1) | 60 | 11.68 | 11.92 | +0.25 (−0.26 to 0.52) | 0.075 | 0.22 | −0.59 | −0.81 (−2.77–1.15) | 0.413 |
| 2nd (14.1–18) | 60 | 15.59 | 16.29 | +0.7 (0.25–1.15) | 0.003 | 0.61 | −0.35 | −0.96 (−3.42 to 1.49) | 0.435 |
| 3rd (18.1–23.88) | 56 | 19.85 | 20.8 | +0.95 (0.18–1.72) | 0.016 | 4.29 | 1.37 | −2.92 (−5.36 to −0.49) | 0.02 |
| 4th (23.9–42.2) | 58 | 26.82 | 28.82 | +1.98 (1.06–2.91) | <0.0001 | 1.01 | −3.95 | −2.94 (−5.09 to −0.78) | 0.008 |
Δ, difference; 95% CI, 95% confidence interval; HUm, mean of Hounsfield Unit in unenhanced CT.