TABLE 1

Demographics of Study Population (n = 2574)

Characteristic
Age, median (IQR), y2.3 (0.9–5.2)
Age, N (%), y
    <21189 (46.2)
    2–4.9712 (27.7)
    5–9.9401 (15.6)
    10–21.9272 (10.6)
Male, N (%)1381 (53.7)
Triage temperature, N (%), °C
    <381624 (63.4)
    38.0–38.9564 (21.9)
    39.0–39.9311 (12.1)
    ≥4064 (2.5)
Age-specific tachypnea (RR measured at ED triage, breaths/min), N (%), y
    All ages510 (19.8)
    <2 (≥60)133 (11.2)
    2–4.9 (≥50)65 (9.1)
    5–9.9 (≥30)106 (26.4)
    10–21 (≥25)206 (75.7)
Triage oxygen saturation %, N (%)b
    97–1001663 (70.0)
    93–96593 (25.0)
    ≤92119 (5.0)
Duration of fever, N (%)
    None651 (25.3)
    ≤72 h1497 (58.2)
    >72 h426 (16.6)
Duration of cough, N (%)a
    None224 (8.8)
    ≤72 h1346 (52.9)
    >72 h974 (38.3)
Wheezing present upon examination in ED, N (%)704 (27.4)
Patients with WBC done, N (%)749 (29.1)
WBC count, mean (SD)13.1 (7.1)
Radiographic pneumonia, N (%)
    Definite pneumonia199 (7.7)
    Radiographic pneumonia422 (16.4)
% Admitted to hospital, N (%)576 (22.4)
    Definite pneumonia67 (34.2)
    Radiographic pneumonia133 (31.7)
  • IQR indicates interquartile range; WBC, white blood cell; RR, respiratory rate.

  • a Duration of cough was missing in 30 patients.

  • b Triage oxygen saturation was missing in 199 patients.