Comment on: “Comparative evaluation of P-POSSUM and NELA scores in predicting 30-day mortality following emergency laparotomy: A prospective observational study”

et al. (1), "Comparative evaluation of P-POSSUM and national emergency laparotomy audit (NELA) scores in predicting 30day mortality following emergency laparotomy: A prospective observational study".This study contributes to an important discussion on perioperative risk stratification; however, several methodological limitations weaken its conclusions.