TABLE 1

Demographics, Laboratory Values, and Hospitalization Characteristics From Included Patients in Study Subgroups

Patient DemographicsANF GroupPaASF GroupPaFP Group
No.27893560
No. males (%)153 (55.0).8651 (54.8).99303 (54.1)
Mean age, d ± SD17.9 ±7.6.3020.8 ±7.3.2218.9 ±7.2
Race.23.55
 White210 (75.5)68 (73.1)414 (73.9)
 African American45 (16.2)21 (22.6)105 (18.8)
 Other7 (2.5)3 (3.2)22 (3.9)
 Unknown16 (5.8)1 (1.1)19 (3.4)
Ethnicity.22.60
 Hispanic/Latino6 (2.2)2 (2.2)6 (1.1)
 Not Hispanic/Latino225 (80.9)80 (86.0)476 (85.0)
 Not stated47 (16.9)11 (11.8)78 (13.9)
Historical characteristics
 Term gestation.08.29
  ≥36 wk273 (98.2)91 (97.8)556 (99.3)
  <36 wk4 (1.4)1 (1.1)1 (0.2)
  Not stated1 (0.4)1 (1.1)3 (0.5)
Laboratory characteristics
 Median white blood cell count, 109/L (IQR)11.3 (9.5–13.9)<.00111.0 (8.6–14.0).2610.4 (7.4–14.1)
 Median absolute neutrophil count, 109/L (IQR)3.46 (2.28–4.90)<.0014.22 (3.01–6.44).884.42 (2.77–6.91)
 Median absolute band count, 109/L (IQR)0.00 (0.00–0.20)<.0010.30 (0.00–0.7).900.29 (0.06–0.83)
 Hours to positive preliminary blood culture results (IQR)20.2 (19.3–23.9).8116.7 (13.8–19.0).1420.2 (16.4–25.8)
Time characteristics
 Median time difference between temperature assessments, min (IQR)240 (202–300)<.001240 (178–277).004240 (150–284)
 Median No. temperature assessments per patient (IQR)11 (8–14)<.00114 (11–17).4014 (11–18)
 No. temperatures measured as rectal (%)2002/3226 (62.1).021046/1457 (71.8)<.0016643/11 134 (59.7)
Hospitalization data
 Median length of stay, h (IQR)43.0 (33.5–51.1)<.00147.4 (42.6–61.0).8747.5 (40.3–62.2)
 Given antibiotics210 (75.5)<.00177 (82.8).41485 (86.6)
  • —, not applicable.

  • a Pairwise comparisons (between the ANF group and FP group and between the ASF group and FP group) by χ2 or Wilcoxon rank sum tests as appropriate.