TY - JOUR T1 - Correspondence on “Electrocardiographic findings and prognostic values in patients hospitalised with COVID-19 in the World Heart Federation Global Study” by Pinto-Filho <em>et al</em> JF - Heart JO - Heart SP - 413 LP - 414 DO - 10.1136/heartjnl-2022-322246 VL - 109 IS - 5 AU - Hamid Reza Marateb AU - Marjan Mansourian AU - Miguel Angel Mañanas Y1 - 2023/03/01 UR - http://heart.bmj.com/content/109/5/413.abstract N2 - To the Editor We read with great interest the manuscript of Pinto-Filho et al.1 It is a multicentre study about the prognostic values of electrocardiographic findings, where such a gap was provided by the US Preventive Services Task Force that the current evidence was insufficient to relate such findings to predict and thus prevent cardiovascular disease (CVD) events.2 Clinical findings must have proper statistical analysis to ensure reliability.3 It is especially important for clinical prediction, where the experimental design, validation framework and source of biases must be precisely taken into account.4–6 Various standards, including TRIPOD,7 have been proposed in the literature and have become part of the author guidelines of journals such as Heart. The multiple logistic regression model (MLR) was used by Pinto-Filho et al 1 as … ER -