TABLE 1

Volumes Submitted for 1358 Blood Cultures According to Age Category

Age GroupBefore InterventionAfter Intervention
Final Blood Volume, Median (Range), mLAdequate Volume, n/N (%)Adequate Submission, n/N (%)Final Blood Volume, Median (Range), mLAdequate Volume, n/N (%)Adequate Submission, n/N (%)
<1 mo0.68 (0.0–2.6)62/95 (65.2)43/62 (69.3)0.85 (0.2–3.4)a31/38 (81.6)31/31 (100)b
1 to <36 mo1.24 (0.0–16.6)218/361 (60.4)159/218 (72.9)1.59 (0.1–11.6)b80/108 (74.1)a60/80 (75.0)
≥36 mo2.49 (0.0–20.1)211/611 (34.5)176/211 (83.4)4.27 (0.0–20.6)c75/145 (51.7)b58/75 (77.3)
All ages1.75 (0.0–20.1)491/1067 (46.0)378/491 (77.0)2.12 (0.2–20.6)b186/291 (63.9)c149/186 (80.1)
Total with adequate submission378/1067 (35.4)149/291 (51.2)c
  • a P ≤ .01 for difference between preintervention and postintervention volumes (Mann-Whitney test) and proportions of adequate volumes or submissions (Fisher's exact test).

  • b P ≤ .001.

  • c P ≤ .0001.