Table 1.

Hospital mortality of patients admitted to internal medicine wards according to the available literature

Authors	Country	Year	Design	Main aim	No. of patients	In-hospital mortality, n (%)	Follow-up mortality, n (%) [follow-up]
Sanclemente et al¹	Spain	2004	Retrospective	Patients' characteristics and mortality	16,059	819 (5.1)	N/A
Kettaneh et al²	France	2007	Retrospective	Prediction of mortality by biochemical markers	1,054	59 (5.6)	N/A
Francia et al³	Spain	2009	Prospective	Physiological parameters vs clinical categories to predict mortality	500	65 (13.0)	N/A
Marco et al⁴	Spain	2010	Retrospective	Weekend admission and mortality	460,423	47,569 (10.3)	N/A
Subbe et al⁵	Ireland	2010	Prospective	A clinical score and mortality	1,098	82 (7.5)	N/A
Mannucci et al⁶	Italy	2014	Prospective	Multimorbidity, polypharmacy and mortality	3,999	158 (4.0)	140 (8.1) [3-month]
Aljishi et al⁷	New Zealand	2014	Retrospective	Readmissions and mortality	394	N/A	91 (23.1) [1-year]
Smolin et al⁸	Israel	2015	Retrospective	A prediction model of 6-month mortality	19,257	N/A (9.5)	N/A (20) [3-month]
Perysinaki et al⁹	Greece	2015	Prospective	Mortality predictors	101	16 (15.8)	30 (29.7) [6-month]
Fabbian et al¹⁰	Italy	2017	Retrospective	A predictive model of mortality	75,586	6,007 (7.9)	N/A
Schwartz et al¹¹	Israel	2017	Retrospective	A predictive model of mortality	10,788	874 (8.1)	N/A
Sakhnini et al¹²	Israel	2017	Retrospective	A predictive model of mortality	12,499	882 (7.1)	N/A
Lenti et al¹³	Italy	2019	Retrospective	Gastrointestinal bleeding in elderly patients	120	4 (3.3)	8 (9.4)
Sanson et al¹⁴	Italy	2019	Retrospective	A predictive model of mortality	5,698	452 (7.9)	1,303 (22.9) [3-month]
Han et al¹⁵	South Korea	2020	Retrospective	Fulltime hospitalist service and mortality	513	46 (9.0)	N/A
Soffer et al¹⁶	Israel	2020	Retrospective	Prediction of mortality by machine learning	118,262	6311 (5.3)	N/A