TABLE 1

Characteristics of Infants With a Positive Urinalysis by Receipt of CSF Testing

No CSF Testing Performed (n = 1061), n (%)CSF Testing Performed (n = 2511), n (%)Pa
Subjects
 Age, d<.001
  7–30187 (17.6)1281 (51.0)
  31–60874 (82.4)1230 (49.0)
 Sex<.001
  Male559 (52.7)1546 (61.6)
  Female502 (47.3)965 (38.4)
 Abnormal inflammatory marker<.001
  Yes426 (40.1)1524 (60.7)
  No556 (52.4)934 (37.2)
  Not obtainedb79 (7.4)53 (2.1)
Hospitals
 University affiliated.019
  Yes667 (62.9)1681 (67.0)
  No394 (37.1)830 (33.1)
 Urban setting.001
  Yes743 (70.0)1898 (75.6)
  No318 (30.0)613 (24.4)
 Annual volume of febrile infants<.001
  <100336 (31.7)671 (26.7)
  101–300383 (36.1)849 (33.8)
  >300342 (32.2)991 (39.5)
 Region<.001
  Northeast144 (13.6)408 (16.3)
  Midwest329 (31.0)572 (22.8)
  South322 (30.3)936 (37.3)
  West266 (25.7)595 (23.7)
  • a P value is calculated from the χ2 test.

  • b This reflects the number of patients who did not receive a complete blood cell count, C-reactive protein, or procalcitonin.