Table 2. ANOVA results of continuous parameters in relation to SIR classification (n = 311).
| Parameter | SIR0 (n = 144) |
SIR1 (n = 134) |
SIR2 (n = 8) |
SIR3 (n = 7) |
SIR4 (n = 18) |
p value |
|---|---|---|---|---|---|---|
| Patient age (y) | 60.3(57.7–62.8) | 63.7(61.1–66.4) | 66.3(55.5–77.1) | 69.0(57.4–80.5) | 62.3(55.1–69.5) | 0.25 |
| Lesion size (cm) | 3.8(3.5–4.2) | 2.3(2.0–2.7) | 2.7(1.2–4.2) | 2.2(0.6–3.8) | 2.3(1.3–3.3) | <0.001 |
| Lesion-to-pleura distance (cm) | 0.8(0.5–1.0) | 2.2(1.9–2.4) | 2.8(1.7–3.9) | 4.2(3.1–5.4) | 4.2(3.4–4.9) | <0.001 |
| Thoracic wall thickness (cm) | 4.0(3.7–4.2) | 3.9(3.7–4.2) | 4.2(3.1–5.2) | 3.7(2.6–4.8) | 4.4(3.7–5.0) | 0.79 |
| Number of procedural CT images | 28.4(25.5–31.3) | 34.5(31.5–37.5) | 38.2(25.9–50.5) | 47.1(34.0–60.2) | 39.1(30.9–47.3) | 0.001 |
| Procedure time length (min) | 15.1(14.0–16.2) | 16.5(15.3–17.6) | 18.2(13.5–22.9) | 23.2(18.2–28.3) | 16.1(13.0–19.3) | 0.02 |
Mean (95% confidence interval CI).