Table 3.
Comparison of Multifrequency Bioimpedance (BIS) and RAVI values by 6 months against subsequent lymphoedema by 24 months.
| Multifrequency Bioimpedance (BIS) | ||||||
|---|---|---|---|---|---|---|
| BIS value by 6 months | Lymphoedema defined by RAVI > 10% | Clinical sleeve application | P-value | Hazard Ratio | ||
| No lymphoedema (N = 737) | Lymphoedema (N = 99) | No lymphoedema (N = 707) | Lymphoedema (N = 135) | |||
| <3 | 348 (90%) | 38 (10%) | 345 (91%) | 33 (9%) | 0.26a | 1 |
| ≥3–<5 | 102 (96%) | 4 (4%) | 98 (91%) | 10 (9%) | 0.26a | 1.48 (0.74–2.95) |
| ≥5–<10 | 155 (89%) | 20 (11%) | 143 (81%) | 33 (19%) | 0.16a | 1.37 (0.79–2.35) |
| ≥10 | 132 (78%) | 37 (22%) | 121 (67%) | 59 (33%) | ≤0.001 | 3.70 (2.3–5.95) |
| RAVI | ||||||
|---|---|---|---|---|---|---|
| After 6 months up to 24 months | Lymphoedema defined by RAVI > 10% | Clinical sleeve application | P-value | Hazard Ratio | ||
| No lymphoedema (N = 847) | Lymphoedema (N = 141) | No lymphoedema (N = 662) | Lymphoedema (N = 211) | |||
| RAVI < 4% | 633 (97%) | 15 (3%) | 540 (85%) | 93 (14%) | NS | 1 |
| RAVI 4–9% | 185 (72%) | 71 (28%) | 104 (56%) | 81 (43%) | 0.012 | 2.41 (1.21–4.80) |
| RAVI > 10% | 39 (41%) | 55 (59%) | 18 (33%) | 37 (67%) | ≤0.001 | 3.09 (2.73–7.13) |
NS non-significant.
aNon-significant: note RAVI changes predicted subsequent lymphoedema but BIS changes did not.