TABLE 1.

Demographic and clinical characteristics of active TB patients (TB) and healthy controls (HC).

	Healthy controls (HC)	TB patients (TB)
Sample size	21	31
Female	9 (42.9%)	12 (38.7%)
Male	12 (57.1%)	19 (61.3%)
Age (mean ± SD)	26.83 ± 9.8	27.47 ± 12.5
Smear grade
None	21	11 (35.5%)
1+	N/A	9 (29.0%)
2+	N/A	5 (16.1%)
3+	N/A	6 (19.4%)
Chest X-ray
Nodules and fibrotic scars	N/A	30 (96.8%)
Infiltrates or consolidations	N/A	30 (96.8%)
Cavity	N/A	9 (29.0%)
Atelectasis	N/A	7 (22.6%)
Pleural effusion	N/A	2 (6.5%)
Bronchiectasis	N/A	7 (22.6%)

Recruitment site: Guangdong Center for Tuberculosis Control.