title: Study of community-acquired pneumonia: incidence, patterns of care, and outcomes in primary and hospital care.
abstract: BACKGROUND
  To asses the incidence, patterns of care, and outcomes of community-acquired pneumonia (CAP) in the population of a defined geographic area.
  
  
  METHODS
  Prospective study conducted from April 1, 2006, to June 30, 2007. All adult patients (age ≥18) with CAP in the Comarca Interior region of northern Spain were identified through the region's 150 family physicians and the emergency department (ED) of the area's general teaching hospital.
  
  
  RESULTS
  During a 15-month period, 960 patients with CAP were identified: 418 hospitalized and 542 ambulatory patients. The hospitalization rate was 43.5% and the global 30-day mortality was 4% (38 patients). Of the patients treated at home, most (90.4%) had mild pneumonia, only 3.1% (17 patients) were subsequently hospitalized, with a 30-day mortality rate of 0%. However, 48.9% were not treated according to antibiotic recommendations of the Spanish Society of Pneumology. Mean duration of return to daily activity was 18.8 days for the entire population. The incidence study was restricted to the first 12 months, during which 787 patients fulfilled the inclusion criteria. This represented an incidence of pneumonia of 3.1/1000 adults per year. Both the incidence of CAP and hospitalization for it rose with age.
  
  
  CONCLUSIONS
  Our study offers information about CAP in the general population and provides feedback for the management of CAP. Although the selection of patients to be treated at home was appropriate, the choice of empiric antibiotic therapy for ambulatory CAP was problematic.
authors.affiliation: Pneumology Service Hospital Galdakao, 48960 Galdakao, Bizkaia, Spain. alberto.capelasteguisaiz@osakidetza.net
authors.forename: Alberto
authors.initials: A
authors.lastname: Capelastegui
authors.forename: Pedro P
authors.initials: PP
authors.lastname: España
authors.forename: Amaia
authors.initials: A
authors.lastname: Bilbao
authors.forename: Julio
authors.initials: J
authors.lastname: Gamazo
authors.forename: Federico
authors.initials: F
authors.lastname: Medel
authors.forename: Juan
authors.initials: J
authors.lastname: Salgado
authors.forename: Iñaki
authors.initials: I
authors.lastname: Gorostiaga
authors.forename: Cristobal
authors.initials: C
authors.lastname: Esteban
authors.forename: Lander
authors.initials: L
authors.lastname: Altube
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Gorordo
authors.forename: Jose M
authors.initials: JM
authors.lastname: Quintana
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D017714:Community-Acquired Infections / Q000453:epidemiology; D015897:Comorbidity; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006784:Hospitals, Teaching; D006801:Humans; D015994:Incidence; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000453:epidemiology* / Q000628:therapy*; D011320:Primary Health Care; D011446:Prospective Studies; D012372:ROC Curve; D011859:Radiography; D012720:Severity of Illness Index; D013030:Spain / Q000453:epidemiology; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D000900:Anti-Bacterial Agents