Table 2.
Relationships between blood culture sample sites and BCC (September 2010 to March 2012).
| Blood culture sites | Blood culture results | Relationships between blood culture sample sites and BCC | |||
|---|---|---|---|---|---|
| False positive n (%) |
True positive n (%) |
Negative n (%) |
P value | OR (95% CI) | |
| Peripheral venepuncture | 30 (34·0) | 28 (43·7) | 561 (41·3) | 0·009 | 1 |
| Central venous catheter | 48 (54·5) | 24 (37·5) | 431 (31·8) | 0·003 | 2·1 (1·3–3·3) |
| Dialysis line | 5 (5·7) | 6 (9·4) | 123 (9·1) | 0·58 | 0·7 (0·29–1·99) |
| Arterial line | 3 (3·5) | 2 (3·1) | 47 (3·4) | 0·77 | 1·2 (0·35–4·1) |
| Not recorded | 2 (2·3) | 4 (6·3) | 195 (14·4) | ||
| Total | 88 | 64 | 1357 | ||
BCC, Blood culture contamination; OR, Odds ratio; CI, confidence interval.