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. Author manuscript; available in PMC: 2012 Jun 1.
Published in final edited form as: Int J Infect Dis. 2011 Mar 9;15(6):e382–e387. doi: 10.1016/j.ijid.2011.02.002

Table 1.

Patient characteristics by HCAP status †

CAP patients HCAP patients
(N = 35,180) (N = 15,578)
Age (years) 69.2 ± 12.9 70.3 ± 12.3
Male gender (%) 97.0 97.4
Comorbidity score* (%)
0 10.79 5.10
1 19.12 13.97
2 23.97 21.64
3+ 46.11 59.30
Mean comorbidity score* 2.5 ± 1.6 3.0 ± 1.6
ICU Admission (%) 15.2 19.3
Mechanical ventilation (%) 7.6 9.7
Severe Pneumonia (%) 6.2 8.1
Aspiration Pneumonia (%) 1.1 2.3
Immune Suppression (%) 7.4 20.7
Prior Antibiotics (%) 28.4 58.6
†

Differences between CAP and HCAP were all statistically significant p<.01

*

Based on Charlson-Deyo-Quan comorbidity index score