TABLE 2

Duration of Initial Empirical Antibiotic Treatment and Frequency of Prolonged Initial Empirical Antibiotic Treatment According to Network Center (N = 4039)

CenterDuration of Initial Empirical Antibiotic Treatment, Median (Range), dProlonged Initial Empirical Antibiotic Course (≥5 d), %a
16 (2–21)55
24 (2–11)49
38 (1–33)73
45 (1–33)56
57 (1–36)73
67 (3–29)68
74 (2–17)38
86 (1–26)55
94 (2–26)47
106 (1–15)55
113 (2–26)29
124 (2–19)49
134 (2–22)43
144.5 (2–23)50
155 (2–32)54
169.5 (2–17)85
174 (2–33)27
184.5 (2–15)50
197 (3–21)72
Total5 (1–36)53 (N = 2147)
  • a Proportion of infants included in the study cohort (P < .001 for center differences).