Demographic, behavioural & historical variables | Clinical, test and outcome variables | ||
---|---|---|---|
Age – mean (range) in years) | 58.4 (28–94) | Blood glucose on admission – mean (range) in mmol/L | 20.4 (5.6–42) |
Sex - no.(%) female) | 82 (64.1 %) | Insulin dependent – yes (%) | 82 (64.1 %) |
aSocial class IV & V - no.(%) | 113 (88.3 %) | eMajor comorbidities – yes (%) | 95 (74.2 %) |
How long diabetic – mode (range) in years) | 10–20 (0– < 30) | Time to first medical attention – mean (range) in days | 7 (1–42) |
bStrenuous activity - no.(%) | 60 (46.9 %) | Time to admission – mean (range) in days | 13 (1–120) |
First degree relatives with diabetes – yes (%) | 99 (77.3 %) | Lower limb affected – right (%) | 69 (53.9 %) |
Current smoker (or stopped <6 months) – yes (%) | 19 (14.8 %) | Nature of affliction - infection vs gangrene (%) | 124 (96.9 %) |
Ever smoked (stopped >6 months) – yes (%) | 57 (47.5 %) | Part of limb infection started – forefoot (%) | 97 (75.8 %) |
cCurrent alcohol intake – none (%)/moderate (%) | 101 (78.9 %) 26 (20.3 %) | Presence of chronic ulcer – yes (%) | 42 (32.8 %) |
Previous infections affected limb – yes (%) | 45 (37.5 %) | fNon-ulcerative foot deformity – yes (%) | 28/86 (32.6 %) |
Previous infections either limb – yes (%) | 65 (50.8 %) | gOsteomyelitis – yes (%) | 19/83 (22.9 %) |
Part of foot affected (if trauma) – forefoot (%) | 33/41 (80.5 %) | Any distal pulse not palpable – yes (%) | 34 (26.6 %) |
Implement causing injury (if trauma) (see text) | Ankle-brachial index - no. < 0.9 (%) | 42 (32.8 %) | |
Event preceding a chronic ulcer (see text) | hPeripheral sensory neuropathy – yes (%) | 108 (84.4 %) | |
Ever instructed in foot care – yes (%) | 99 (77.3 %) | iEvent preceding infection/gangrene (see Table 2) | |
Diabetic foot care behaviour – appropriate (%) | 81 (63.3 %) | jAmputation – no. (%) | 75/124 (60.5 %) |
dFoot care by professional – yes (%) | 17 (13.3 %) | kMajor amputation – no. (%) | 41/124 (33.1 %) |