Search for: [Abstract = "onic System for Registration of the Population \(PESEL\) register. The study was approved by the Bioethical Committee of the Medical University of Silesia in Katowice \(Nb\: KNW\-6501\-38\/I\/\/08\), written informed consent to participate in the study was obtained from all subjects. Statistical analysis was performed using the SAS 9.4 statistical package \(SAS Institute Inc., Cary, NC, USA\). Records with complete ankle\-brachial index data were used for the analyses. Results\: As a result of missing data, the study group consisted of 844 people \(in the first publication\) and 852 people \(in the second and third publications\)\; the average age of subjects was 74 \(10.6\) years old\; 53.3% were men. ABI<0.9 was found in 20.3% of participants and >1.4 in 12.1% of participants. Subjects with low ABI values were older, more often male, more often actively smoked, suffered from chronic kidney disease, arterial hypertension, had higher systolic blood pressures and more often had a history of prior myocardial infarction. However, diabetes was more common in the group with ABI >1.4. After dividing the subjects into three subgroups according to the number of PAD symptoms found \(0–1, 2–5, 6 and more\), we demonstrated a linear trend \(P < 0.0001\) for decrease in ABI value with an increase in the number of abnormalities found on physical examination of the arterial system. In turn, after distinguishing 3 r"]

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