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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