Table 4.
Pain scores by randomized group and time point
| NPWT (n = 19) | Usual care (n = 21) | Total (n = 40) | ||||
|---|---|---|---|---|---|---|
| n | Score* | n | Score* | n | Score* | |
| BPI severity | ||||||
| Baseline | 16 | 4·4(2·8) | 20 | 2·7(2·8) | 36 | 3·5(2·9) |
| Week 2 | 15 | 3·7(2·8) | 17 | 2·5(2·5) | 32 | 3·0(2·7) |
| Month 1 | 14 | 3·5(3·4) | 15 | 1·9(2·6) | 29 | 2·7(3·1) |
| Month 3 | 14 | 4·3(2·9) | 13 | 2·1(2·6) | 27 | 3·2(2·9) |
| BPI interference | ||||||
| Baseline | 15 | 5·0(3·5) | 16 | 2·8(3·6) | 31 | 3·8(3·6) |
| Week 2 | 15 | 4·5(3·5) | 17 | 3·3(3·3) | 32 | 3·9(3·4) |
| Month 1 | 14 | 4·2(3·7) | 15 | 2·3(2·8) | 29 | 3·2(3·4) |
| Month 3 | 13 | 5·3(2·8) | 15 | 2·7(3·4) | 28 | 3·9(3·4) |
| VAS wound pain | ||||||
| Baseline | 15 | 51·2(32·1) | 18 | 34·8(32·7) | 33 | 42·2(33·0) |
| Week 2 | 13 | 32·4(33·4) | 17 | 26·5(29·3) | 30 | 29·1(30·7) |
| Month 1 | 13 | 27·1(31·1) | 14 | 20·7(26·7) | 27 | 23·8(28·5) |
| Month 3 | 12 | 30·8(27·2) | 15 | 13·5(23·1) | 27 | 21·1(26·0) |
| VAS pain at dressing changes† | ||||||
| Week 2 | 13 | 22·3(25·5) | 15 | 22·6(24·5) | 28 | 22·5(24·5) |
| Month 1 | 13 | 26·5(32·8) | 14 | 16·4(24·2) | 27 | 21·2(28·5) |
| Month 3 | 11 | 18·1(20·2) | 15 | 12·5(27·0) | 26 | 14·8(24·1) |
*
Values are mean(s.d.).
†
Not measured at baseline. NPWT, negative‐pressure wound therapy; BPI, Brief Pain Inventory; VAS, visual analogue scale.