Table 1.

Patient demographics

	Study group n=117	Control group n=1784	P value
Age, mean (SD)* Female, percent† Having diabetes, percent† Smoking, percent† Ulcer size, median (range)‡ Ulcer duration, median (range)‡ Healing time, median (95% CI)§¶	77 years (13) 59 33 9 6.0 cm2 (0.01–442) 16 weeks (1–371) 49 days (31 to 67)	75 years (14) 54 32 12 3.8 cm2 (0.01–400) 12 weeks (0–2008) 70 days (64 to 76)	0.071 0.257 0.689 0.322 0.018 0.001 0.012

Significant p-values are presented in bold.

*Student’s t-test.

†χ² test.

‡Mann-Whitney U test.

§Log-rank test.

¶Only analysed on healed ulcers.