title: [Primary care as a determinant of the utilization of hospital emergency services].
abstract: OBJECTIVE
  To study the characteristics of emergency care within Primary Care (ECPC), which determine the use of hospital emergency services (HES).
  
  
  METHODS
  Retrospective study. The unit of analysis was the patient attended at the HES.
  
  
  METHODS
  Xàtiva Hospital records and data from Primary Care Management, regarding the type of ECPC and the distance from the patient's town of residence to the hospital.
  
  
  METHODS
  The data of all the patients, a total of 15,290 cases, attended at the HES during the first six months of 1992 were analysed.
  
  
  RESULTS
  We constructed a logistic regression model whose explicative variables were the type of ECPC and the distance to the hospital. The variable reply was the probability for each town of causing a high use of HES. We obtained a model whose predictive capacity was 82.98%, in which, independently of distance, the probability of causing a high use of HES was ordered from low to high, as follows: 1) Towns where the Primary Care Team (PCT) physically provided ongoing care in the town itself. 2) Towns attended by a normal Emergency Service (in the town itself). 3) Towns where the PCT provided ongoing care of a localised nature. 4) Towns where the PCT physically provided ongoing care in another town. The relation of distance to the use of HES was inverse.
  
  
  CONCLUSIONS
  Distance and the different types of ECPC affect the use of HES.
authors.forename: V
authors.initials: V
authors.lastname: Alberola Benavent
authors.forename: F
authors.initials: F
authors.lastname: Rivera Casares
mesh_terms: D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006801:Humans; D016015:Logistic Models; D011320:Primary Health Care; D012189:Retrospective Studies; D013030:Spain
vernacular_title: La atención primaria como determinante de la utilización del servicio de urgencias hospitalario.