From: Correlation between mass and volume of collected blood with positivity of blood cultures
Positivity, n (%) | OR | CI 95 % | P | ||
---|---|---|---|---|---|
No | Yes | ||||
Gender | |||||
Female | 118 (91.5) | 11 (8.5) | |||
Male | 172 (79.6) | 44 (20.4) | 2.74 | 1.36–5.53 | 0.005 |
Diagnosis on admission | |||||
Sepsis/septic shock/other shock states | 123 (78.8) | 33 (21.2) | 0.063 | ||
Respiratory failure | 68 (94.4) | 4 (5.6) | 0.22 | 0.08–0.65 | 0.006 |
Neurologic disorders | 46 (88.5) | 6 (11.5) | 0.49 | 0.19–1.24 | 0.130 |
Solid organ transplantation | 18 (81.8) | 4 (18.2) | 0.83 | 0.26–2.62 | 0.748 |
Others | 35 (81.8) | 8 (18.6) | 0.85 | 0.36–2.01 | 0.715 |
Median age (in years)a | 68 (52–82) | 68 (56–78) | 1.00 | 0.98–1.01 | 0.884 |
Number of comorbiditiesa | 3 (2–4) | 3 (2–4) | 1.00 | 0.82–1.22 | 0.972 |
Number of blood cultures pairsa | 2 (1–3) | 3 (2–7) | 1.28 | 1.16–1.42 | <0.001 |
Mean body temperature (°C) at time of collectiona | 36.7 (36.1–37.3) | 37.0 (36.0–37.6) | 1.20 | 0.90–1.62 | 0.220 |
Body temperature ≥37.8 °C at time of collection | |||||
No | 212 (86.5) | 33 (13.5) | |||
Yes | 78 (78.0) | 22 (22.0) | 1.81 | 1.00–3.30 | 0.052 |
Body temperature ≥39.0 °C at time of collection | |||||
No | 285 (84.8) | 51 (15.2) | |||
Yes | 5 (55.6) | 4 (44.4) | 4.47 | 1.16–17.21 | 0.029 |
Collected median volume (mL)a | 35 (20–52) | 56 (34–95) | 1.02 | 1.01–1.03 | <0.001 |
Collected median weight (g)a | 35 (21–53) | 54 (32–82) | 1.02 | 1.01–1.02 | <0.001 |