Bottle type | Compliant | Noncompliant, ≤10-ml vol | Noncompliant, >10-ml vol | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|

No. of bottle pairs | % positives | % significant positives | % contaminated | No. of bottle pairs | % positives | % significant positives | % contaminated | No. of bottle pairs | % positives | % significant positives | % contaminated | |

SA | 754 | 7.3 | 5.6 | 1.6 | 267 | 7.5 | 4.5 | 3.0 | 276 | 5.8 | 4.7 | 1.1 |

SN | 826 | 5.0 | 4.2 | 0.6 | 235 | 4.3 | 3.0 | 1.3 | 195 | 3.1 | 3.1 | 0.0 |

FA Plus | 1,053 | 8.9 | 7.0 | 1.6 | 388 | 7.7 | 5.9 | 1.8 | 261 | 14.2^{b} | 11.9^{b} | 2.3 |

FN Plus | 906 | 7.4 | 5.7 | 1.7 | 275 | 9.5 | 8.0 | 1.5 | 273 | 10.3 | 9.2^{c} | 1.1 |

All | 3,539 | 7.3 | 5.7 | 1.4 | 1,165 | 7.4 | 5.5 | 1.9 | 1,005 | 8.7 | 7.5 | 1.2 |

↵a Positive culture results imply that at least one bottle from a bottle pair gave a positive result and a positive subculture was obtained. Data for 5 indeterminate positives, all in volume-compliant bottle sets, 1 each in SA and SN and 3 in FA Plus, were excluded from this table.

↵b Data were statistically significant by Pearson's chi-square test;

*P*= 0.011 (all positives) and*P*= 0.010 (significant positives).↵c Data were statistically significant;

*P*= 0.045.