Prevalence and Molecular Characterization of Second-Line Drugs Resistance among Multidrug-Resistant Mycobacterium tuberculosis Isolates in Southwest of China

Table 4

The effect of age on the Pre-XDR/XDR isolates from Southwest of China.

Age	Number (%) of isolates ()	Number (%) of Pre-XDR/XDR isolates ()	OR (95% CI)
29	29 (18.6)	15 (20.5)	—	—
30~39	33 (21.2)	18 (24.7)	0.893 (0.328–2.427)	0.824
40~49	40 (25.6)	17 (23.3)	1.450 (0.554–3.790)	0.446
50~59	25 (16.0)	14 (19.2)	0.842 (0.288–2.465)	0.753
60~69	21 (13.5)	4 (5.5)	4.554 (1.228–16.881)
≧70	8 (5.1)	5 (6.8)	0.643 (0.128–3.203)	0.588

value from Fisher’s exact test.