Research Article
Risk Factors for Foot Amputation in Patients Hospitalized for Diabetic Foot Infection
Table 4
Distribution of patients with diabetes by disease characteristics at admission in relation to foot amputation.
| | Characteristics | Amputation | PR (95% CI) | | No
(prevalence %) | Yes
(prevalence %) |
| | Previous conservative procedure | | | | <0.001 | | No | 8 (14.6) | 47 (85.5) | 1 | | | Yes | 31 (68.9) | 14 (31.1) | 0.36 (0.23–0.57) | | | Osteomyelitis | | | | <0.001 | | No | 32 (66.7) | 16 (33.3) | 1 | | | Yes | 7 (13.5) | 45 (86.5) | 2.60 (1.71–3.94) | | | Wagner criteria | | | | 0.051 | | 2 or 3 | 16 (64.0) | 9 (36.0) | 1 | | | 4 | 23 (30.7) | 52 (69.3) | 1.93 (0.95–3.91) | | | Previous amputation | | | | 0.255 | | No | 29 (42.6) | 39 (57.4) | 1 | | | Yes | 10 (31.2) | 22 (68.8) | 1.20 (0.88–1.64) | | | Diabetic foot characteristics | | | | 0.256 | | Neuropathic | 1 (25.0) | 3 (75.0) | 1 | | | Ischemic | 7 (70.0) | 3 (30.0) | 0.40 (0.13–1.21) | | | Neuroischemic | 31 (36.1) | 55 (63.9) | 0.85 (0.47–1.54) | | | Age at admission | | | | 0.321 | | <60 | 13 (30.9) | 29 (69.1) | 1 | | | 60 to 69 | 10 (40.0) | 15 (60.0) | 0.87 (0.59–1.27) | | | ≥70 | 16 (48.5) | 17 (51.5) | 0.75 (0.51–1.10) | | | Glucose level at admission (mmol/L) () | | | | 0.480 | | <7.77 | 8 (47.1) | 9 (52.9) | 1 | | | ≥7.77 | 30 (37.0) | 51 (63.0) | 1.19 (0.74–1.92) | | | Involvement of the other lower limb | | | | 0.701 | | No | 27 (40.3) | 40 (59.7) | 1 | | | Yes | 12 (36.4) | 21 (63.6) | 1.07 (0.77–1.48) | |
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values <0.05 were considered statistically significant (indicated in bold). CI: confidence interval; PR: prevalence ratio; : adjusted prevalence ratio.
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