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Recent Transmission and Prevalent Characterization of the Beijing Family Mycobacterium tuberculosis in Jiangxi, China


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Fig. 1

The MIRU-VNTR genotypes in Jiangxi province, China – the study design. NTM – nontuberculous mycobacteria.
The MIRU-VNTR genotypes in Jiangxi province, China – the study design. NTM – nontuberculous mycobacteria.

Fig. 2

Map of Jiangxi showing the distribution of 1,433 isolates included in this study (the numbers indicate the absolute number of isolates in every region).
Map of Jiangxi showing the distribution of 1,433 isolates included in this study (the numbers indicate the absolute number of isolates in every region).

Prevalent characterization of Beijing and non-Beijing family strains.

Characteristics Beijing family Non-Beijing family
Clustered n = 612 Non-clustered n = 508 OR (95% CI) p-value Clustered n = 46 Non-clustered n = 267 OR (95% CI) p-value
Sex
Men 384 267   – 32 177
Women 228 241 1.210.–512. 93 0 .001 14 90 0.519.–126. 29 0.74
Age
≤ 30 187 176 13 78
30–50 232 149 0.501.–608. 91 0 .01 19 67 0.207.5–818.2 8 0.24
≥ 50 193 183 0.716.–011. 34 1 .00 14 122 0.615.–435. 25 0.41
Treatment history
New 530 461 32 203
Recurrent 67 38 0.403.–605. 99 0 .05 11 52 0.305.–714. 58 0.42
Treatment failure 15 9 0.300.–619. 59 0 .42 3 14 0.200.–724. 70 0.71
HIV status
Positive 28 23 2 14
Negative 584 485 0.518.–011. 78 1 .00 44 253 0.108.–832. 74 1.00
Sputum
Negative 121 104 12 83
Positive 391 404 0.819.–210. 62 0 .23 34 184 0.309.–718. 59 0.60
Cavity
No 494 432 39 225
Yes 118 76 0.919.–316. 86 0 .07 7 42 0.400.–926. 30 1.00

Demographic and drug-resistant characteristics of this study’s isolates (n = 1,433).

Characteristics Number Beijing family Non-Beijing family OR (95% CI) p-value
All 1,433 1,120 313   –
Sex
Men 860 651 209   –
Women 57 3 41 9 154 0.910.–114. 46 0.29
Age
≥ 50 512 376 136   –
30–50 46 7 38 1 86 1.114.–414. 83 0.003
≤ 30 45 4 36 3 91 1.015.–313. 67 0.02
Treatment history
New 1,174 900 274   –
Recurrent 16 8 14 5 23 0.303.–502. 83 0.004
Treatment failure 91   7 5 16 0.400.–710. 22 0.24
Region
Southern regions 249 181 68   –
Central regions 72 2 56 7 155 0.502.–713. 01 0.07
Northern regions 46 2 37 2 90 0.405.–604. 92 0.02
DST profile
DST profile 1,433 1,120 313   –
Pansusceptible 99 2 79 4 198 0.703.–819. 09 0.27
RIF   2 7   1 8 9 0.810.–749. 02 0.16
INH   3 3   2 5 8 0.511.–124. 56 0.68
SM   5 2   4 4 8 0.300.–615. 40 0.31
EMB    6    5 1 0.008.–762. 15 1.00
AK   1 9   1 5 4 0.301.–925. 90 1.00
CM   1 8   1 3 5 0.419.–338. 89 0.57
LEV   3 8   3 0 8 0.403.–925. 10 1.00
RIF + INH   5 6   4 7 9 0.303.–618. 41 0.41
RIF + SM   2 0   1 5 5 0.413.–139. 31 0.78
INH + SM   4 1   3 4 7 0.302.–714. 68 0.57
RIF + EMB    5    3 2 0.402–.3194 .34 0.30
INH + EMB    1    1 0   –
RIF + INH + EMB   7 1   6 0 11 0.304.–616. 26 0.24
RIF + INH + SM   2 9   2 5 4 0.200.–517. 66 0.37
INH + SM + EMB    5    4 1 0.100.–980. 03 1.00
RIF + INH + SM + EMB    2    1 1 0.223–.5587 .37 0.39
MDR 158 133 25 0.410.64 –1.01 0.05

Prevalent characterization of clustered and non-clustered strains.

Characteristics Clustered Non-clustered
Beijing family n = 612 Non-Beijing family n = 46 OR (95%CI) p-value Beijing family n = 508 Non-Beijing family n = 267 OR (95%CI) p-value
Sex
Men 384 32   – 267 177
Women 228 14 0.308.–714. 41 0.43 241 90 0.401.–506. 77 < 0.001
Age
≤ 30 187 13 176 78
30–50 232 19 0.517.–128. 45 0.72 149 67 0.618.–012. 50 1.00
≥ 50 193 14 0.418.–024. 28 1.00 183 122 1.016.5–024.1 4 0.03
Treatment history
New 507 28 443 246
Recurrent 84 14 1.533.–052. 97 0.003 61 9 0.103.2–606.5 4 0.00
Treatment failure 21 4 1.131.–41409. 73 0.05 4 12 1.752.–41062. 93 0.002
HIV status
Negative 584 37   – 485 260
Positive 28 9 0.009.–200. 45 0.001 23 7 0.715.–746. 16 0.24
Sputum
Negative 121 12   – 104 83
Positive 391 34 0.440.88 –1.75 0.72 404 184 0.410.57 –0.80 0.001
Cavity
Yes 108 7   – 86 42
No 504 39 0.512.–129. 74 0.84 422 225 0.713.–019. 63 0.76
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Temas de la revista:
Life Sciences, Microbiology and Virology