Table 2.

Patient demographics: the healing time study

	Study group (n=100)	Control group (n=1888)	P value
Age, mean (SD, range)*	77 years (13, 37–98)	75 years (14, 23–104)	0.231
Female†	54%	56%	0.744
Diabetes†	27%	28%	0.798
Ulcer size, median (range)‡	3.4 cm2 (0.1– 131.6)	3.8 cm2 (0.01–1196.0)	0.192
Ulcer duration, median (range)‡	124 days (7–3657)	84 days (0–5839)	0.001
Healing time, median (95% CI)§	59 days (40 to 78)	82 days (75 to 89)	<0.001

Statistically significant P values (<0.05) are marked in bold.

*Student’s t-test.

†χ² test.

‡Mann-Whitney U-test.

§Log-rank test.