School based screening for tuberculosis infection in Norway: comparison of positive tuberculin skin test with interferon-gamma release assay

Table 3 Associations between background variables and positive QuantiFERON^®TB Gold test

Variable	Total	QFT+	a OR	p-value for variable
Origin of child				0.001
*Western-born*	280	16	ref
*Second generation immigrant*	108	6	0.9 (0.3 – 2.4)
*First generation immigrant*	123	22	3.3 (1.6 – 6.2)
Exposure				0.034
No	478	37	ref
*Yes*	27	7	2.9 (1.1 – 7.6)

Results from multivariate regression analysis with positive QuantiFERON^®TB Gold test as outcome variable among 511 tuberculin skin test positive children detected in the Norwegian school based screening programme in 2005–6. Final model; 505 observations, p-value < 0.001 and Log likelihood =-139.20399

ISSN: 1471-2334