Table 3. Frequencies and proportions of diagnostic categories and x-ray descriptive findings, by observer. Numbers in parentheses are proportions.

	Observer 1	Observer 2	Observer 3
Diagnosis
Pneumonia	38 (19)	39 (19.5)	47 (23.5)
Wheezing	84 (42)	99 (49.5)	91 (45.5)
Pneumonia plus wheezing	78 (39)	62 (31)	62 (31)
X-ray description
Bronchovascular network	168 (84)	163 (81.5)	163 (81.5)
Air trapping	134 (67)	126 (63)	129 (64.5)
Rib horizontalization	125 (62.5)	119 (59.5)	127 (63.5)
Alveolar infiltrate	107 (53.5)	97 (48.5)	97 (48.5)
Air bronchogram	56 (28)	52 (26)	62 (31)