The Early Warning Score (EWS) has been shown in previous studies to be correlated with mortality and mean hospital stay, but it is unknown whether the implementation of the scale improves mortality and mean hospital stay.

This trial aims to study whether the implantation of the EWS in a regional hospital reduces the mean hospital stay (primary objective), mortality and complications (secondary objectives).

For this, an open clinical trial will be carried out in which the hospitalization floors of the hospital will be administratively divided into two sections (two study branches); the EWS scale will be implemented in the computer equipment of one of the sections of each floor, acting the another section as a control branch.

All the patients admitted to the participating hospital floors during one year will be included in the study. The mean stay, mortality and complications will be compared between study branches.

Inclusion Criteria:

• Patients admitted during study period to the participant hospital units.

Exclusion Criteria:

• None

IPD (without personal identification data) could be shared by requirement from other researchers after the end of the study, and only for research proposels and previous approval of promotor center of the study (CSAPG). Anyway, Spanish and European Union legal policy about data protection will strictly be followed (IPD will not be transferred outside European Union).

After publication of main results of the study.

IPD will be shared only for scientific research purposes and following the Spanish and European Union normative law about data protection. The requirements will be directed to the IP of the study. The IP will evaluate the request to verify and evaluate the data that is requested and the purposes for which it is requested. Next, the IP will transfer the request to the promotor center the study for the final decision.