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Table 1 Socio-demographic and clinical characteristics of the 166 Chinese TB patients with multiple episodes of treatment history

From: Drug resistance characteristics and cluster analysis of M. tuberculosis in Chinese patients with multiple episodes of anti-tuberculosis treatment

  Geographic locations
Variables West East Central North South Total
  n = 22 n = 29 n = 38 n = 52 n = 25 n =166
Female sex 5 (22.7) 6 (20.7) 8 (21.1) 11 (21.2) 6 (24.0) 36 (21.7)
Age (mean ± SD) 46 ± 13.8 47 ± 13.9 45 ± 17.8 46 ± 14.5 42 ± 11.8 45 ± 14.7
Episodes of previous treatment history
 =2 8 (36.4) 12 (41.4) 20 (52.6) 26 (50.0) 12 (48.0) 78 (47.0)
 >2 14 (63.6) 17 (58.6) 18 (47.4) 26 (50.0) 13 (52.0) 88 (53.0)
Cavity 9 (40.9) 11 (37.9) 13 (34.2) 22 (42.3) 14 (56.0) 69 (41.6)
Concurrent disease 2 (9.1) 2 (6.9) 3 (7.9) 4 (7.7) 2 (8.0) 13 (7.8)
Drug resistant profile
 MDR only 6 (27.3) 7 (24.1) 13 (34.2) 27 (51.9) 9 (36.0) 62 (37.3)
 MDR-FQR 3 (13.6) 2 (6.9) 5 (13.2) 6 (11.5) 3 (12.0) 19 (11.4)
 MDR-INJR 1 (4.5) 3 (10.3) 2 (5.3) 4 (7.7) 1 (4.0) 11 (6.6)
 Other 1st DR 6 (27.3) 9 (31.0) 9 (23.7) 7 (13.5) 9 (36.0) 40 (24.1)
 Other 2nd DR 3 (13.6) 0 (0) 0 (0) 0 (0) 0 (0) 3 (1.8)
 1st-2nd DR 2 (9.1) 7 (24.1) 8 (21.1) 6 (11.5) 2 (8.0) 25 (15.1)
 XDR 0 (0) 1 (3.4) 1 (2.6) 2 (3.8) 1 (4.0) 5 (3.0)
  1. MDR multidrug resistance, XDR extensively drug resistance, FQR floroquinolones resistance, INJR injective drug resistance