Table 5

Comparison of three severity rules in predicting death from community acquired pneumonia in 188 patients with complete data5-150

Severity prediction rule Sensitivity (%) Specificity (%)
BTS rule5279
Modified BTS rule6673
Risk class V** 4485
Derivation studies:
BTS rule8879
Modified BTS rule9571
  • 5-150 Based on 188 (77%) patients for whom complete data for respiratory rate, urea, diastolic blood pressure, and presence of confusion was available. **Where data were missing, these were taken to be within the normal range. This may have led to underestimation of severity in some patients.