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Assessment of peripheral artery disease risk in building construction workers by Ankle-Brachial index measurement with automated oscillometric and hand-held Doppler device
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Background:
Peripheral arterial disease (PAD) remains underdiagnosed, partly because of the limitations of the Doppler ankle-brachial index (ABI) with regards to equipment, training, and time constraints.
Aims:
To compare the accuracy and validity of automated oscillometric ABI measurement in detecting PAD in primary care settings against a gold standard Doppler device.
Settings and Design:
A cross-sectional observational study was conducted at the physiology department, Dr. Ram Manohar Lohia Institute of Medical Sciences (DrRMLIMS), Lucknow.
Methods and Material:
A total of 200 male building construction workers of all types of age groups between 20 and 40 years were recruited. The ABI measurement was performed using the Watch BP Office and hand-held HI.dop, BT-200 Vascular Doppler device.
Statistical Analysis Used:
The Bland-Altman plot and receiver operator characteristics (ROC) curve were determined to analyze the agreement between the two methods. For the reliability of the test, Pearson’s correlation with linear regression was done and the intraclass correlation (ICC) coefficient was calculated.
Results:
The mean ABI (Osc) and ABI (Dop) were 1.13 ± 0.09 and 1.06 ± 0.08, respectively. The ABI (Dop) and ABI (Osc) methods were highly correlated Pearson’s correlation coefficient of 0.96 with 95% confidence interval (CI) ranges between 0.985 and 1.066 (P < 0.001). On linear regression analysis, the ABI (Dop) predicted ABI (Osc) 92.6% correctly. The paired mean difference between the two measuring devices was 0.07 (95% CI = −0.03 to −0.12). At 0.90 cut-off value of diagnosing PAD, the sensitivity is 50%, specificity 100%, positive predictive value 100%, and negative predictive value 97% by an oscillometric automated device.
Conclusion:
Our finding suggested that ABI measurement by the automated oscillometric device is reliable, free of examiner bias, and less time-consuming.
Title: Assessment of peripheral artery disease risk in building construction workers by Ankle-Brachial index measurement with automated oscillometric and hand-held Doppler device
Description:
Background:
Peripheral arterial disease (PAD) remains underdiagnosed, partly because of the limitations of the Doppler ankle-brachial index (ABI) with regards to equipment, training, and time constraints.
Aims:
To compare the accuracy and validity of automated oscillometric ABI measurement in detecting PAD in primary care settings against a gold standard Doppler device.
Settings and Design:
A cross-sectional observational study was conducted at the physiology department, Dr.
Ram Manohar Lohia Institute of Medical Sciences (DrRMLIMS), Lucknow.
Methods and Material:
A total of 200 male building construction workers of all types of age groups between 20 and 40 years were recruited.
The ABI measurement was performed using the Watch BP Office and hand-held HI.
dop, BT-200 Vascular Doppler device.
Statistical Analysis Used:
The Bland-Altman plot and receiver operator characteristics (ROC) curve were determined to analyze the agreement between the two methods.
For the reliability of the test, Pearson’s correlation with linear regression was done and the intraclass correlation (ICC) coefficient was calculated.
Results:
The mean ABI (Osc) and ABI (Dop) were 1.
13 ± 0.
09 and 1.
06 ± 0.
08, respectively.
The ABI (Dop) and ABI (Osc) methods were highly correlated Pearson’s correlation coefficient of 0.
96 with 95% confidence interval (CI) ranges between 0.
985 and 1.
066 (P < 0.
001).
On linear regression analysis, the ABI (Dop) predicted ABI (Osc) 92.
6% correctly.
The paired mean difference between the two measuring devices was 0.
07 (95% CI = −0.
03 to −0.
12).
At 0.
90 cut-off value of diagnosing PAD, the sensitivity is 50%, specificity 100%, positive predictive value 100%, and negative predictive value 97% by an oscillometric automated device.
Conclusion:
Our finding suggested that ABI measurement by the automated oscillometric device is reliable, free of examiner bias, and less time-consuming.
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