Comorbidity	Standard dressing, n (%)	Pico dressing, n (%)	p value†
Diabetes	5 (14)	4 (11)	1
Ischaemic heart disease	7 (19)	10 (29)	0.27
Peripheral vascular disease	1 (3)	1 (3)	1
Varicose veins	0 (0)	2 (6)	0.24
Congestive heart disease	3 (8)	2 (6)	1
Hypertension	5 (14)	9 (26)	0.25
Other comorbidities	17 (47)	15 (43)	0.81
BMI >30	10 (27)	8 (23)	0.97
Anticoagulation		p = 0.03‡
Aspirin	6 (17)	13 (37)
Apixaban, rivaroxaban or warfarin	14 (39)	5 (14)
None	16 (44)	17 (49)