Presence of hypertension might pose a potential pitfall in detection of diabetes mellitus non-invasively using the second derivative of photoplethysmography. - Ahmet Tas; Yaren Alan; Ilke Kara; Abdullah Savas; Muhammed Ikbal Bayhan; Diren Ekici; Zeynep Atay; Fatih Sezer; Cagla Kitapli; Sabahattin Umman; Murat Sezer (Comput. methods Biomech. Biomed. Eng. Imaging Vis., 2024)