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Predictive validity of Amit Jain’s screening tool in estimating the risk of complications in diabetic foot — a retrospective cohort study

Amit Jain, HC Apoorva
11 December 2020

Aim: The aim of this study was to assess the new Amit Jain’s linear foot test (LFT) screening tool (scored) in estimating the risk of developing complications in the foot in diabetes. Method and materials: All patients who were seen at Amit Jain’s Institute of Diabetic Foot and Wound Care at Brindhavvan Areion Hospital, Bengaluru, India, were included in this study. The study period was from January 15, 2019 to July 15, 2019 and patients were followed until June 15, 2020. Statistical analysis was done using SPSS 25 and P value of less than 0.05 was considered significant. The study was approved by ethics committee. Results: Fifty-two patients were included in the study: 63.5% were males. Only 10 patients (19.23%) had diabetes of more than 20 years’ duration. Around 84.6% had underlying neuropathy and 21.2% had non-palpable pulses. Jain’s LFT screening tool was used to estimate the risk of developing complications in diabetic foot; 53.8% of the patients had a score of 2 and 71.2% belonged to high-risk category. Within the high-risk group, 27% of the patients developed complications within 1 year. The sensitivity of this score was 100% and area under curve was 0.704 showing that this scoring system is clinically useful. Conclusion: The new Amit Jain’s scoring system for the LFT screening tool shows a good sensitivity and area under curve. Patients in the high-risk category are at significant risk of developing complications in the foot within 1 year and they should be followed up periodically. This new scoring to the screening tool increases the utility of the Amit Jain’s triple assessment and opens further prospects for research of the tool.

Disclaimer: The authors would like to thank Sumitra S, Senior Lecturer, Biostatistics unit, St John’s Research Institute, Bengaluru, India, for the statistical analysis conducted in this study.

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