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Table 1 Crude odds of infection, LTBI and active disease compares to those who screened negative derived using multinomial social network analysis of year groups A and B course data

From: Social network analysis and whole genome sequencing in a cohort study to investigate TB transmission in an educational setting

Case status Variable OR 95% CI p-value
Infected (LTBI or active disease) Number of active contacts 1.37 1.02–1.84 0.04
Number of courses with suspected index case 1.69 1.08–2.64 0.02
Part of suspected index case community 2.23 0.67–7.45 0.19
Number of courses shared with LTBI cases 1.06 1.01–1.11 0.03
Number of LTBI contacts 1.10 1.00–1.21 0.06
Active disease Number of active contacts 1.83 1.04–3.20 0.04
Number of courses with suspected index case 2.57 1.38–4.79 0.00
Part of suspected index case community 7.47 1.27–44.00 0.03
Number of courses shared with LTBI cases 1.13 1.05–1.22 0.00
Number of LTBI contacts 1.26 1.09–1.45 0.00
LTBI Number of active contacts 1.25 0.93–1.68 0.15
Number of courses with suspected index case 1.40 0.91–2.14 0.13
Part of suspected index case community 1.23 0.37–4.06 0.73
Number of courses shared with LTBI cases 1.03 0.98–1.09 0.19
Number of LTBI contacts 1.06 0.96–1.18 0.25
Not screened Number of active contacts 1.65 1.11–2.45 0.01
Number of courses with suspected index case 1.08 0.60–1.94 0.81
Part of suspected index case community 0.75 0.13–4.32 0.74
Number of courses shared with LTBI cases 1.03 0.96–1.10 0.41
Number of LTBI contacts 1.11 0.98–1.26 0.09
  1. LTBI latent tuberculosis infection, OR odds ratio, CI confidence interval