Table 1—

Patient characteristics and week 4 surrogate characteristics for those who healed and those who did not by the 20th week of care and who were evaluated at week 4

VariableHealedUnhealed
Wounds15,382 (53.7)13,242 (46.3)
Age (years)64 (54–73)65 (54–74)
Wound size (mm2)133 (49–401)255 (82–827)
Wound duration (months)1 (0.5–3)2 (0.75–5)
Log wound size (mean)4.97 (0.012)5.59 (0.014)
Log wound duration0.36 ± 1.400.73 ± 0.01
Log rate0.062 ± 0.00060.007 ± 0.0004*
Percent change−0.016 ± 0.06*−1.02 ± 0.25*
Ratio of log areas0.64 ± 0.004*0.99 ± 0.003*
  • Data are n (%), median (25th–75th percentile), or mean ± SD unless otherwise indicated.