Introduction: Peripheral arterial disease (PAD) is a common cardiovascular disorder less commonly diagnosed in female patients. Peripheral arterial disease is objectively diagnosed using the ankle-brachial index (ABI), which can be measured using the “gold standard” Doppler method or the oscillometric method. The agreement between these 2 methods is less investigated in the sub-Saharan African population. Therefore, we compared the diagnostic characteristics of the oscillometric method of measuring ABI with the Doppler method in premenopausal female patients in Ghana. Methods: The ABI was measured in non-diabetic premenopausal women suspected of having PAD using the Doppler method with an 8 MHz handheld Doppler (LifeDop 250, Summit Doppler) and an oscillometric device (Vasera 1500N, Fukuda Denshi) in 160 patients (320 legs). Peripheral arterial disease was defined as an ABI <0.90 in at least one leg. Leg symptoms were assessed using the Edinburgh claudication questionnaire. Results: Leg pain on exertion was present in 101 patients screened with similar mean ABIs in the right and left legs. The prevalence of PAD as screened by the Doppler method was 25.7% (18.9%-33.4%) and that of the oscillometric method was 32.2% (24.9%-40.3%). In comparison with the Doppler method, the accuracy of the oscillometric method was 88.2%, and the sensitivity, specificity, positive predictive value, and negative predictive value were 89.7%, 87.6%, 71.4%, and 96.1%, respectively. The overall agreement between the Doppler and oscillometric methods was high, = 0.78 (0.62-0.91), P < .001, with an intraclass correlation of 0.89 (0.87-0.92, P < .001). In receiver-operating characteristic (ROC) curve analysis, the oscillometric method showed an area under the curve of 0.925 compared with the Doppler method in the diagnosis of PAD. Conclusion: In non-diabetic premenopausal women in our study, oscillometric ABI performed acceptably in the diagnosis of PAD when compared with Doppler ABI.
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