Mean ± SD | 1.72 ± 0.78 |
1.20 ± 0.28 |
1.45 ± 0.40 |
0.006 |
Range | 0.42 – 4.05 | 0.71 – 1.85 | 0.71 – 2.90 |
True-positive | 13/179 = 7.26% | 2/26 = 7.69% | > 0.999 |
False-positive | 8/179 = 4.47% | 1/26 = 3.85% | > 0.999 |
Mean ± SD | 1.38 ± 0.42 |
1.49 ± 0.56 | 1.68 ± 0.70 |
1.52 ± 0.58 | 0.004 |
Range | 0.42 – 2.68 | 0.68 – 3.53 | 0.69 – 4.05 | 0.42 – 4.05 |
Samples weighed | 205 (100.0) |
Samples with volume estimation | 196 (95.6) |
Birthweight | 205 |
≤ 1500 g | 53 (25.9) |
1501–2500 g | 90 (43.9) |
> 2500 g | 62 (30.2) |
Material source | 205 |
Cord blood | 72 (35.1) |
Umbilical catheter | 20 (9.8) |
Peripheral vessel | 112 (54.6) |
Not specified | 1 (0.5) |
Positive blood cultures | 24 |
True-positive blood cultures | 15 (62.5) |
False-positive blood cultures | 9 (37.5) |
4 (2.0) | 1 (0.5) | 5 (2.6) | ||
22 (11.2) | 169 (86.2) | 191 (97.4) | ||
26 (13.3) | 170 (86.7) | 196 (100.0) |
n | 36 | 14 | 22 | |
Blood culture collection is: | ||||
Easy | 11 (30.6) | 6 (42.9) | 5 (22.7) | 0.469 |
Moderately difficult | 21 (58.3) | 7 (50.0) | 14 (63.6) | |
Difficult | 4 (11.1) | 1 (7.1) | 3 (13.6) | |
Don’t know | - | - | - | |
Measurement of blood volume collected for culture is: | ||||
Unnecessary | 2 (5.6) | - | 2 (9.1) | 0.244 |
Necessary, but a substantial impediment | 3 (8.3) | 1 (7.1) | 2 (9.1) | |
Necessary and not a substantial impediment | 27 (75.0) | 13 (92.9) | 14 (63.6) | |
Don’t know | 4 (11.1) | - | 4 (18.2) |