Clinical and Imaging Characteristics of Smear Negative Pulmonary Tuberculosis Patients: A Comparative Study
Table 3
Univariate analysis of imaging findings among SNPTB and SPPTB patients in Addis Ababa, Ethiopia, 2021.
Imaging outcomes
HC classification
AHRIL classification
SPPTB
SNPTB
SPPTB
SNPTB
Freq. (%)
Freq. (%)
COR
value
Freq. (%)
Freq. (%)
COR
value
Cavitary lesions
Yes
16 (47.1)
32 (21.9)
0.32
0.004
28 (39.4)
20 (18.3)
0.34
0.002
No
18 (52.9)
109 (73)
1
43 (60.6)
84 (81.7)
1
Infiltration/consolidation
Yes
13 (44.8)
43 (59.4)
0.62
0.257
24 (39.3)
32 (33.3)
0.77
0.444
No
16 (55.2)
85 (66.4)
1
37 (60.7)
64 (66.7)
1
Pleural effusion
Yes
1 (3)
24 (17.0)
6.77
0.066
9 (12.7)
16 (15.4)
1.25
0.616
No
33 (76.1)
117 (83)
1
62 (87.3)
88 (84.6)
1
Other
Yes
6 (22.7)
44 (44)
2.67
0.073
10 (21.3)
39 (52)
4.01
0.001
No
16 (77.3)
56 (56)
1
37 (78.7)
36 (48.5)
SNPTB: smear negative pulmonary tuberculosis; SPPTB: smear positive pulmonary tuberculosis. Imaging findings other than those listed in the table (includes discrete fibrosis, nodules (discrete, poorly defined), hilar lymphadenopathy, nonspecific signs of pneumonia, and abdominal ascites).
