Table 1. Characteristics of the studies included in this meta-analysis.
| Study | Study design | Sample size/(PT/Control) | Average age (year) | Burn area or %TBSA | Details in PT group | Time to PT | Type of PT used/Method of ssessment | Control group | Flow-up | With-draw | Outcomes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Engrav 2012 | Within wounds | 54 (54/54) | 36 ± 14 | ≥4 cm in diameter | 25.00 ± 6.3 mmHg 23 h per day | ≥3 weeks to heal | Medical Z Corporation®/I-Scan system | 6.40 ± 6.2 mmHg 23 h per day | 9.5 | 11 | Thickness; Hardness; Color |
| Li-Tsang 2010 | Between patien | 104 (59/45) | 22 ± 19 | >16 cm2 | 15~25 mmHg 24 h per day except bathing time | 14.9 ± 30.8 months post-injury | Tailor-made pressure garment/Not report | Non-PT | 6 | 20 | Thickness; Hardness; Color; Pain; Pruritus |
| Candy 2010 | Between patient | 17 (53HS) (25/28) | 26 ± 8 | >4 cm × 4 cm | 23.23 ± 1.11 mmHg 23 h per day except for hygienic measures | 5.21 ± 1.91 months post-injury | Tailor-made plastazote paddings/Pliance X System | 14.53 ± 1.0 mmHg 23 h per day except for hygienic measures | 5 | 0 | Thickness; Hardness; Color |
| Moore 2000 | Within wounds | 23 (23/23) | Not report | Not report | Mean = 25 mmHg 23 h per day except bathing time | healed burn wound | Medical Z Corporation®/I-Scan system | Non-PT | 12 | 0 | Thickness; Hardness; Color |
| Chang 1995 | Between patient | 122 (64/58) | 31 ± 2 | (21.7 ± 2.2)% | 15~25 mmHg | healed burn wound | Pressure garment/Not report | Non-PT | Not report | 0 | Length of stay; Wound maturation time |
| Ven den Kerckhove 2005 | Between patient | 60 (75HS) (41/34) | 37.5 (19~6) | 8.5% (1~30%) | 19.75 ± 3.44 mmHg 23 h per day | 2 weeks after reepithelialisation | Tricolast® or Anvarex®/ENV 12718 | 11.85 ± 2.41 mmHg 23 h per day | 3 | 0 | Thickness; Color |
| Groce 2000a | Between patient | 50 (25/25) | 6.6 (1~7) | 48.3% (11~99%) | 24.7 ± 8.5 mmHg | Not report | Jobst®/Tek-Scan Matscan | 10.4 ± 7.6 mmHg | 6 | 0 | VSS; Thickness; Hardness; Pigmentation; Vascularity |
| Groce 2000b | Between patient | 28 (10/18) | 8.2 (1~6) | 11.2% (1~30%) | Mean = 21.8 mmHg | Not report | Jobst®/Not report | Non-PT | 6 | 0 | VSS; Thickness; Hardness; Pigmentation; Vascularity |
| Li 2009 | Between patient | 60 (30/30) | 37 (14~52) | 10~50% | 10~25 mmHg 23.5 h per day | 1 week after wound closure | Urgosyval®/Not report | 5~10 mmHg 23.5 h per day | 6 | 2 | Scar tissue perfusion |
| Li 2004 | Between patient | 43 (34/9) | 21 ± 19 | (7.13 ± 4.77) cm × (4.14 ± 2.94) cm | 24~25 mmHg 24 h per day except bathing time | Not report | Pressure garment/Not report | Non-PT | 2 | 0 | VSS; Thickness; Hardness; Color |
| Zhu 2012 | Between patient | 62 (31/31) | 34 ± 13 | 10~50% | 15~25 mmHg 24 h per day except bathing time | 2~ week after wound closure | Pressure garment/Not report | Non-PT | 6 | 0 | VSS |
| Xu 2006 | Between patient | 87 (45/42) | 5~50 | Not report | 15~25 mmHg 24 h per day except bathing time | 2~3 week after wound closure | Pressure garment/Not report | Non-PT | 6 | 0 | VSS |
HS: Hypertrophic scar; PT: Pressure therapy; Non-PT: Pressure therapy not using; %TBSA: percentage of total body surface area; VSS: Vancouver Scar Scale score.