Table 3 Association of patient and tumor factors with likelihood of recommending active surveillance and specific cut-offs viewed as most appropriate for active surveillance (N = 127 for Bosniak III; N = 124 for Bosniak IV)
From: Management of complex renal cysts in Canada: results of a survey study
Significant impact on likelihood to recommend active surveillance reported N (%) | ||
|---|---|---|
Characteristics | Bosniak III | Bosniak IV |
Patient factors | ||
▪Age | 121 (95.3) | 104 (84.5) |
●Cutoff | ||
○ > 55 years old | 6 (5.0) | 3 (2.9) |
○ > 65 years old | 35 (28.9) | 17 (16.4) |
○ > 75 years old | 80 (66.1) | 84 (80.8) |
▪Presence of comorbidities | 121 (96.0) | 105 (85.4) |
Tumor factors | ||
▪Cyst size | 72 (56.7) | 59 (48.0) |
●Cutoff | ||
○ < 4 cm | 56 (77.8) | 54 (91.5) |
○ < 7 cm | 16 (22.2) | 5 (8.5) |
▪Size of nodular component | N/A | 86 (69.9) |
●Upper limit cutoff, median (IQR) | 2 cm (1–3 cm) | |
▪Number of septa/calcification | 32 (25.2) | 25 (20.7) |
●Cutoff | ||
○ ≤ 2 | 7 (22.9) | 9 (36.0) |
○ ≤ 3 | 20 (62.5) | 12 (48.0) |
○ ≤ 4 or 5 | 5 (15.7) | 4 (16.0) |
▪Thickness of septa/calcification | 56 (44.1) | 31 (25.2) |
●Upper limit cutoff, median (IQR) | 3 mm (2–5 mm) | 5 mm (3–5 mm) |
▪Cyst wall nodularity | 95 (74.8) | N/A |