Table 3. Comparison of demographics and CT findings between diabetic PTB patients with HbA1c ≤ 8% and > 8%.
| Variable | HbA1c ≤ 8% (N = 51) | HbA1C > 8% (N = 72) | P value |
|---|---|---|---|
| Demographics | |||
| Age, yr | 72.5 ± 15.0 (29–95) | 68.8 ± 14.5 (33–94) | 0.581 |
| Gender, male/female (N, %) | 40/11 (78.4%/21.6%) | 57/15 (79.2%/20.8%) | 1.000 |
| Ever smoking (N, %) | 23 (45.1%) | 31 (43.1%) | 0.855 |
| HbA1c, % | 6.89 ± 0.73 (5.4–8.0) | 10.61 ± 2.05 (8.1–16.2) | < 0.001 |
| CT | |||
| Unusual findings | |||
| Primary TB | |||
| Segmental or lobar consolidation (N, %) | 21 (41.2%) | 38 (52.8%) | 0.271 |
| LAP (short-axis diameter > 10mm) (N, %) | 4 (7.8%) | 17 (23.6%) | 0.028 |
| Pleural effusion (N, %) | 13 (25.5%) | 24 (33.3%) | 0.426 |
| Others | |||
| Miliary lesions (N, %) | 0 (0%) | 5 (6.9%) | 0.076 |
| Pericardial effusion (N, %) | 1 (2.0%) | 4 (5.6%) | 0.402 |
| Large non-cavitary nodules/masses > 1cm (N, %) | 10 (19.6%) | 25 (34.7%) | 0.072 |
| > 1 cavity in one lesion (N, %) | 3 (5.9%) | 23 (31.9%) | < 0.001 |
| Usual findings | |||
| Centrilobular nodules (N, %) | 21 (41.2%) | 23 (31.9%) | 0.342 |
| Tree-in-bud opacities (N, %) | 26 (51.0%) | 43 (59.7%) | 0.057 |
| Single cavitary nodule/mass (N, %) | 13 (25.5%) | 23 (31.9%) | 0.547 |
| Satellite nodules (N, %) | 17 (33.3%) | 34 (47.2%) | 0.140 |
| Acinar or lobular nodules (N, %) | 32 (62.7%) | 56 (77.8%) | 0.104 |
| Location | |||
| Usual predominanta (N, %) | 23 (45.1%) | 21 (29.2%) | 0.087 |
| Unusual predominantb (N, %) | 11 (21.6%) | 19 (26.4%) | 0.671 |
| Mixedc (N, %) | 17 (33.3%) | 32 (44.4%) | 0.263 |
| Distribution | |||
| All lobes involvement (N, %) | 15 (29.4%) | 35 (48.6%) | 0.041 |
CT = computed tomography; HbA1C = glycosylated hemoglobin; LAP = lymphadenopathy; TB = tuberculosis.
aLesions limited to or predominantly involving the apical and posterior segments of the upper lobes and the superior segments of the lower lobes of lung.
bLesions limited to or predominantly involving the anterior segments of the upper lobes, the right middle lobe, lingular segment, and basal segments of the lower lobes of the lung.
cEven distribution of usual and unusual sites.