Anand, AishwaryaKumar, RupeshGupta, AnkurVijayvergiya, RajeshMehrotra, SaurabhLad, DeepeshBarwad, ParagSharma, SwatiPatil, Amol N.2023-07-212023-07-212022-06Anand Aishwarya, Kumar Rupesh, Gupta Ankur, Vijayvergiya Rajesh, Mehrotra Saurabh, Lad Deepesh, Barwad Parag, Sharma Swati, Patil Amol N.. Development of an interview-based warfarin nomogram predicting the time spent in the therapeutic INR range: A cost-effective, and non-invasive strategy building from a cross sectional study in a low resource setting. Indian Heart Journal. 2022 Jun; 74(3): 245-2480019-48322213-3763http://imsear.searo.who.int/handle/123456789/220904A cross-sectional study was conducted to predict time in therapeutic range (TTR) using clinical history, examination, and socioeconomic data. Study included warfarin-receiving patients from outpatient-clinic. In 203 patients studied, mean warfarin start-dose was 2.55 mg/day and maintenance-dose/week was 30.79 mg. Body mass index (BMI) (p ¼ 0.03), warfarin maintenance dose/day (p ¼ 0.02), and comorbidity presence (p ¼ 0.04) were significantly associated with TTR. Occupation (p ¼ 0.53), income (p ¼ 0.83), education (p ¼ 0.55), and socioeconomic score (p ¼ 0.73) showed non-significant association with TTR. A TTR predicting nomogram was built from clinical history and examination findings.Warfarin nomogramPercent time in therapeutic rangeINRJournal ArticleIndiaDepartment of Pharmacology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, IndiaDepartment of Cardiothoracic and Vascular Surgery, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, IndiaDepartment of Cardiology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, IndiaDepartment of Internal Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, IndiaDepartment of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India