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Table 5 Differences in M. tuberculosis characteristics between the Beijing and non-Beijing families

From: Role of MIRU-VNTR and spoligotyping in assessing the genetic diversity of Mycobacterium tuberculosis in Henan Province, China

Drug susceptibility testing total (n = 668) Beijing family isolates(n = 558) Non-Beijing family isolates (n = 110) OR 95% CI p-value
Pan sensitive 466 394 72 1.09 0.69–1.75 0.700
Any resistance to
 Isoniazid 99 85 14 1.23 0.67–2.26 0.487
 Rifampin 63 54 9 1.20 0.57–2.51 0.623
 Ethambutol 42 38 4 1.56 0.54–4.50 0.415
 Streptomycin 129 108 21 1.01 0.65–1.71 0.946
 Kanamycin 28 20 8 2.11 0.90–4.92 0.078
 ofloxacin 58 44 14 1.79 0.94–3.41 0.072
 All four first-line drugs resistance 30 29 1 5.97 1.05–44.33 0.045
 MDR-TB 50 47 3 3.28 1.01–10.37 0.038
 Pre-XDR-TB 17 16 1 3.21 0.42–24.51 0.332
 XDR-TB 11 10 1 1.99 0.25–15.69 1.001
  1. OR odds ratio, CI confidence interval
  2. MDR-TB: multi-drug resistance TB, resistant to at least isoniazid and rifampicin
  3. XDR-TB: extensively drug-resistant tuberculosis, MDR-TB plus resistance to ofloxacin and kanamycin
  4. Pre-XDR-TB: MDR-TB plus resistance to either ofloxacin or kanamycin
  5. First-line drugs resistance: resistant to isoniazid, rifampin, ethambutol and streptomycin