We studied efficacy of predicting outcomes of the disease in 345 patients (mean age 48.3 +/- 4.5 years) with extra hospital pneumonia (EHP). The risk of an unfavourable outcome was determined according to three prognostic rules (PR) of the British Thoracic Society. Ambiguity of the results necessitates specification of the PR indicators' prognostic value in respect to age and social aspects while PR assessment of the disease severity can serve an important tool in perfection of care for EHP patients.