Table 4

Factors significantly associated with mortality on multivariate analysis

Clinical feature Odds ratio95% Confidence intervalp value
Age >65 years6.602.47 to 17.64<0.001
Confusion4.201.77 to 9.940.001
Temperature <37°C2.741.26 to 5.950.01
RR >24 breaths/min3.651.69 to 7.880.01
Sodium <135 mmol/l3.091.29 to 7.390.01
Urea >7 mmol/l3.121.33 to 7.29<0.01
Effusion on chest radiograph6.231.25 to 30.980.03
  • RR = respiratory rate.