TABLE 1

Characteristics of Afebrile Infants With AOM (N = 1637)

Demographic
Median age, d (IQR)68 (49–80)
Age, d, n (%)
 0–28100 (6.1)
 29–56444 (27.1)
 57–901093 (66.8)
Male, n (%)957 (58.5)
Ethnicity, n (%)
 Hispanic595 (36.3)
 Not Hispanic859 (52.5)
 Unknown or other183 (11.2)
Term gestation, n (%)1217 (74.3)
Chronic illnessa, n (%)49 (3.0)
History of presenting illness, n (%)
 History of tactile warmth257 (15.7)
 Measured fever >2 d before ED visit92 (5.6)
Ear discharge422 (25.8)
Difficulty feeding429 (26.2)
Vomiting276 (16.9)
Diarrhea119 (7.3)
Decreased urine output96 (5.9)
Symptoms of upper respiratory infection1179 (72.0)
General examination, n (%); kb
 Ill appearancek30 (1.8); 0.56
 Respiratory distressk75 (4.6); 0.44
 Dehydrationk28 (1.7); 0.21
Ear examination ≥1 ear , n (%)
 Tympanic membrane erythema970 (59.3)
 Bulging tympanic membrane564 (34.5)
 Otorrhea477 (29.1)
  • All values are frequency (%) except where otherwise indicated.

  • a Includes congenital heart disease (19), major congenital anomaly other than congenital heart disease (10), renal or urologic disorder (6), failure to thrive (4), disease or use of medications that would affect the immune system (3), neurologic disorder (3), chronic lung disease (1), presence of indwelling catheters or shunts (1), and other (7). Does not total 49 because an infant may have >1 chronic illness.

  • b Cohen unweighted k (interrater reliability) was used to measure interrater reliability of 2 assessors’ determination of these findings. Variables with k of 0.21 to 0.40 were considered to have fair agreement, those with k of 0.41 to 0.60 were considered to have moderate agreement, and those with k of 0.61 to 0.80 were considered to have substantial agreement.