Healing of Diabetic Foot Ulcers in Patients Treated at the Copenhagen Wound Healing Center in 1999/2000 and in 2011/2012

Table 2

Risk factors and mortality. Based on all the included patients ().

Deceased no. (% of patients with nonmissing data)	+	-	value	OR	RR
Statins	120 (20.5)	303 (51.8)	<0.001	0.3	0.6
Metformin	101 (17.3)	323 (55.2)	<0.001	0.3	0.6
Minor amputation(s) done	77 (16.2)	399 (83.8)	0.01	0.6	0.9
Major amputation(s) done	40 (6.2)	436 (67.4)	0.007	15.4	1.1
>13 months of antibiotic treatment	58 (10.0)	375 (64.4)	0.002	4.5	1.1

is the total no. of patients with nonmissing data.