A cross-section study was completed, including the universe of patients who underwent major surgery except for cardiovascular procedures during February and March 2011 at the HGM: patients had to be at least 18 years old, had to be Medel-lin residents for the last six months and must have voluntarily agreed to answer the survey.
Se realizó un estudio de corte transversal. Se incluyó el universo de pacientes sometidos a cirugía mayor excepto cirugías cardiovasculares durante los meses de febrero y marzo de 2011 en el HGM, mayores de 18 años, residentes en Medellín en los últimos 6 meses y que accedieron voluntariamente a responder la encuesta.