Descriptive summary of the 30 included studies used in this systematic review and meta-analysis
| Total number of studies | 30 |
| Total number of participants | 2564 |
| Sample size range | 18–619 |
| Mean sample size per study | 152 (SD=119) |
| Range of follow-up period | 10 days–24 weeks |
| Study period or duration | 1992–2012 |
| Studies reporting age, n (%) | 24/30 (70) |
| Mean age range; mean age (years) | 52.1–69.3; 59 (SD=4.3) |
| Total number of studies reporting gender, n (%) | 21/30 (70) |
| Range of number of men; mean number of men | 12–240; 49 (SD=53) |
| Range of number of women; mean number of women | 1–88; 26 (SD=22) |
| Number of studies reporting ethnicity, n (%) | 5/30 (16.7) |
| Number of studies reporting socioeconomic status, n (%) | 1/30 (3.3) |
| Geographic setting | Europe and USA (70%) |
| Publication language | English (93%) |
| Study setting, n (%) | Hospital 8/30 (26.7) Outpatient 17/30 (56.7) Both 2/30 (6.7) |
| Studies reporting wound size (area), n (%) | 20/30 (67) |
| Studies reporting wound duration, n (%) | 14/30 (70) |
| Studies reporting hemoglobin A1C (HgbA1C), n (%) | 8/30 (26.7) |
| HgbA1C (range) (%) | 7.25–9.25 |
| Studies reporting on duration of diabetes, n (%) | 14/30 (70) |
| Duration of diabetes (range) (years) | 13–21 |
| Studies reporting baseline peripheral arterial insufficiency, n (%) | 9/30 (30) |
| Studies reporting body mass index, n (%) | 5/30 (16.7) |
This data table has been adapted from the summary data of the 30 included studies.