Difference in Antibody Responses to Mycobacterium tuberculosis Antigens in Japanese Tuberculosis Patients Infected with the Beijing/Non-Beijing Genotype

Table 1

Clinical characteristics.

	Non-Beijing	Beijing	p value
Demographics
Males, n (%)	14 (87.5%)	14 (70.0%)	n.s.
Age [y, mean (%)]	50.7	60.2	n.s.
Mycobacterial identification
AFB-positive strains, n (%)	13 (81.2%)	17 (85.0%)	n.s.
Time to growth in MGIT (weeks)	7.43	8.20	n.s.
Drug resistance profile
Isoniazid-resistant strain	0	3 (15%)	n.s.
MDR strain	2 (12.5%)	0	n.s.
Laboratory findings
CRP (mg/mL)			n.s.
Blood IgG (mg/mL)	17.67	16.12	n.s.
Blood IgA (mg/mL)	3.83	3.99	n.s.
Chest radiograph findings
Cavity, positive (%)	4 (26.7%)	9 (45.0%)	n.s.
Pleural effusion, positive (%)	3 (20.0%)	5 (25.0%)	n.s.

STD, standard deviation; MDR, multidrug resistance, as resistant to rifampin and isoniazid in this study; CRP, C-reactive protein.