Table 3.

Variation in acidification and proteolytic activities in hMDM from LTB (n = 35) and ATB (n = 101) in response to TDM beads.

Acidification	30 min			60 min			90 min
	Range	% CV (mean ± SD)	P	Range	% CV (mean ± SD)	P	Range	% CV (mean ± SD)	P
LTB	0.97–1.10	3.12 (1.02 ± 0.03)	0.32	1.00–1.19	3.97 (1.09 ± 0.04)	0.41	1.02–1.23	4.53 (1.12 ± 0.05)	0.39
ATB	0.98–1.10	2.75 (1.03 ± 0.03)		1.00–1.23	4.52 (1.1 ± 0.05)		1.00–1.32	5.14 (1.14 ± 0.06)
Proteolysis	60 min			120 min			180 min
	Range	% CV (mean ± SD)	P	Range	% CV (mean ± SD)	P	Range	% CV (mean ± SD)	P
LTB	1.45–5.91	36.53 (2.71 ± 0.99)	0.24	2.80–19.38	42.87 (8 ± 3.43)	0.08	3.53–24.57	39.98 (11.42 ± 4.57)	0.03
ATB	1.00–4.85	30.61 (2.91 ± 0.89)		1.74–15.3	32.95 (8.56 ± 2.82)		2.31–21.27	29.1 (12.12 ± 3.53)

LTB, Latent tuberculosis; ATB, Active tuberculosis.

Range, min-max; Mean ± SD, Mean ± standard deviation; CV, coefficient variation, calculated by percentage of SD divided by mean.

P, P-value for comparison of coefficient variation in either acidification or proteolytic activity among two groups.