Table 5

Logistic regression analysis of risk factors for intra-hospital death from laboratory-confirmed bloodstream infection and clinically suspected systemic infection
Characteristic
 Laboratory-confirmed bloodstream infection
 Clinically suspected systemic infection
HIV-status analyzed
 No
 Yes
 No
 Yes
No. of observations
 n = 216
 n = 128
 n = 1527
 n = 790

OR (95%CI)
 OR (95%CI)
 OR (95%CI)
 OR (95%CI)
Male sex
 *
 *
 0.8 (0.60–1.05)
 *
Neonate (≤ 1 month)
 *
 *
 *
 0.7 (0.45–1.15)
Malnutrition
 1.9 (0.95–3.88)
 *
 2.1 (1.47–2.90)‡
 1.6 (0.96–2.55)
HIV infection
 NA
 3.4 (1.22–9.40)†
 NA
 2.1 (1.29–3.26)†
Other underlying infectious disease
 *
 *
 1.8 (1.13–2.87)†
 *
Underlying non-infectious disease
 *
 *
 *
 *
Malaria
 *
 *
 *
 *
Hospital-acquired infection
 *
 *
 *
 *
Polymicrobial infection
 *
 *
 *
 *
Growth in blood-culture of:



- Enterobacteriaceae
 3.5 (1.71–7.03)†
 5.6 (2.06–14.95)†
 3.3 (2.09–5.34)‡
 4.2 (2.27–7.65)‡
- Non -Enterobacteriaceae
 2.4 (0.92–6.13)
 4.0 (0.99–16.45)
 2.4 (1.02–5.46)†
 2.7 (0.80–8.81)
- Candida spp.
 2.6 (0.91–7.29)
 2.9 (0.70–12.09)
 2.5 (1.02–6.03)†
 *
Inappropriate antimicrobial treatment
 2.1 (1.09–4.16)†
 2.3 (0.95–5.58)
 2.1 (1.14–3.93)†
 1.7 (0.76–3.73)

OR, odds ratio; 95%CI, 95% confidence interval. *Variables with P > 0.2 were removed from the models. Statistically significant risk factors are marked † P < 0.05 and ‡ P < 0.001.

Blomberg et al. BMC Infectious Diseases 2007 7:43   doi:10.1186/1471-2334-7-43