Skip to main content

Table 2 Odds ratios for outcomes QuantiFERON-TB Gold plus (QFTG) and symptoms with associated risk factors, stratified by age (adults≥15 years of age; children < 15 years of age)

From: Implementing contact tracing for tuberculosis in Kyrgyz Republic and risk factors for positivity using QuantiFERON-TB Gold plus

    Combined Adults Children
Outcome Stratifier Predictor OR 95% CI p-value OR 95% CI p-value OR 95% CI p-value
QFTG positive None Adults vs Children 1.94 1.05–3.60 0.035
  IC ss + vs IC ss- 1.76 1.02–3.06 0.043* 1.88 0.98–3.61 0.057 1.36 0.48–3.94 0.58
  Symptoms 1.61 0.79–3.29 0.1884 1.57 0.68–3.64 0.289 1.625 0.40–6.54 0.494
  High household risk 1.97 1.09–3.54 0.024* 1.81 0.90–3.66 0.097 2.53 0.83–7.69 0.102
Index Case ss+ High household risk 2.47 1.10–5.50 0.027* 2.16 0.83–5.62 0.115 5.06 0.96–26.66 0.056
TST positive None IC ss+ 1.75 0.75–4.09 0.195 1.50 0.05–40.63 0.810 1.66 0.68–4.08 0.268
  High household risk 0.85 0.35–2.07 0.720 NA NA NA 0.88 0.34–2.28 0.792
Symptoms None IC ss+ 1.92 1.02–3.58 0.04* 2.63 1.18–5.89 0.018* 1.02 0.35–2.98 0.965
None High household risk 1.03 0.53–2.01 0.918 1.2 0.53–2.68 0.654 0.76 0.23–2.55 0.655
  1. Abbreviations: IC SS + index case has positive sputum smear microscopy, TST tuberculin skin test, QTFG Quantiferon-TB gold plus test, NA logistic regression not possible as too few results
  2. *Significant at p < 0.05; QFTG QuantiFERON-TB Gold plus, IC index case, ss + sputum smear microscopy positive