Table 4. Abnormalities in HIV-seropositive TB patients according to CD4 count^a.

Radiographic findings	CD4 ≤50 cells mm–3 (n=102) n (%)	CD4 >50 cells mm–3 (n=80) n (%)	Risk ratio (95% CI)	p-value
Normal chest radiograph	14 (14)	8 (10)	1.37 (0.61–3.11)	0.44
Focal upper lobe opacities	15 (15)	11 (14)	1.07 (0.52–2.20)	0.86
Diffuse opacities	66 (77)b	54 (75)c	1.02 (0.86–1.22)	0.80
Consolidation	34 (33)	43 (54)	0.62 (0.44–0.87)	0.006
Reticulonodular opacities	41 (40)	40 (50)	0.80 (0.58–1.11)	0.19
Cavities	9 (9)	15 (19)	0.47 (0.22–1.02)	0.05
Nodules	14 (14)	10 (13)	1.10 (0.52–2.34)	0.81
Miliary pattern	3 (3)	1 (1)	2.35 (0.25–22.19)	0.63
Intrathoracic lymphadenopathy	31 (30)	13 (16)	1.87 (1.05–3.33)	0.03
Pleural effusion	14 (14)	14 (18)	0.78 (0.40–1.55)	0.48

CI, confidence interval; HIV, human immunodeficiency virus; TB, tuberculosis.

^aCD4 count unknown for four HIV-positive TB patients.

^bOut of 86 patients with CD4 counts ≤50 and data available.

^cOut of 72 patients with CD4 counts >50 and data available.