Determinants of Microbial Load in Infected Diabetic Foot Ulcers: A Pilot Study

Table 2

Correlations of total microbial load.

Correlations of total microbial load	𝑃 value
Number of isolates on tissue cultures	𝑟𝑠=0.544, 𝑃<0.001
WBC	𝑟𝑠=0.273, 𝑃=0.032
PLT	𝑟𝑠=0.306, 𝑃=0.015
PEDIS infection grade	𝑟𝑠=0.246, 𝑃=0.053
Age	𝑟𝑠=−0.147, 𝑃=0.253
Diabetes duration	𝑟𝑠=−0.20, 𝑃=0.880
Ulcer duration*	𝑟𝑠=0.048, 𝑃=0.712
UT ulcer stage	𝑟𝑠=0.202, 𝑃=0.116
NDS	𝑟𝑠=−0.119, 𝑃=0.359
ABI	𝑟𝑠=−0.032, 𝑃=0.806
NSS	𝑟𝑠=−0.101, 𝑃=0.436
Ht%	𝑟𝑠=0.051, 𝑃=0.694
CRP	𝑟𝑠=0.140, 𝑃=0.278
Urea	𝑟𝑠=−0.005, 𝑃=0.969
Creatinine	𝑟𝑠=0.048, 𝑃=0.710
AST	𝑟𝑠=0.000, 𝑃=1.000
ALT	𝑟𝑠=−0.068, 𝑃=0.599
HbA1c	𝑟𝑠=0.228, 𝑃=0.075
LDL	𝑟𝑠=0.113, 𝑃=0.382
HDL	𝑟𝑠=0.051, 𝑃=0.692
TC	𝑟𝑠=0.130, 𝑃=0.315
TGs	𝑟𝑠=0.104, 𝑃=0.420
SUA	𝑟𝑠=0.096, 𝑃=0.458
CPK	𝑟𝑠=−0.197, 𝑃=0.125
FPG	𝑟𝑠=0.015, 𝑃=0.908

∗Duration of ulcer in months, as based on medical history.
ABI: ankle-brachial index; ALT: alanine aminotransferase; AST: aspartate aminotransferase; CPK: creatine phosphokinase; CRP: c-reactive protein; FPG: fasting plasma glucose; HDL: high-density lipoprotein cholesterol; Ht%: haematocrit; LDL: low-density lipoprotein cholesterol; NDS: neuropathy disability score; NSS: neuropathy symptom score; PEDIS: grade of diabetic foot infection, according to the International Working Group on the Diabetic Foot; PLT: platelet count; SUA: serum uric acid; TC: total cholesterol; TGs: triglycerides; UT: University of Texas; WBC: white blood cell count.