Influence of socioeconomic status on features and outcome of community-acquired pneumonia

Eur J Clin Microbiol Infect Dis. 1999 Oct;18(10):704-8. doi: 10.1007/s100960050382.


The influence of socioeconomic status on the features and evolution of community-acquired pneumonia in 107 consecutive hospitalized patients was investigated. Thirty-four (31.8%) patients were considered to have a low socioeconomic status. These patients were more likely immigrants, middle-aged, with fewer comorbid illnesses, and were more often tobacco, alcohol, or drug consumers (P<0.01). The distribution of etiologies was significantly different according to socioeconomic status, with tuberculosis occurring more frequently in the low socioeconomic group (P < 0.05). Low socioeconomic status was not associated with a more severe presentation or outcome of pneumonia but was an independent factor that predicted a significantly longer length of hospitalization (5.9 days longer; 95% confidence interval, 2.2-9.5 days; P<0.003), entailing a substantial excess cost per hospital stay.

MeSH terms

  • Adult
  • Aged
  • Community-Acquired Infections / complications*
  • Community-Acquired Infections / economics
  • Female
  • Humans
  • Length of Stay
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Pneumonia / complications*
  • Pneumonia / economics
  • Prospective Studies
  • Social Class