Table 5.

Further Investigations

	Bothamley et al 2002			Monney et al 2005		Ormerod 1990		Verver et al 2001
Study details	Active screening (PoA)	Passive screening (GP)	Passive screening (Homeless)	Active screening (PoA)	Passive screening	Active screening (PoA)	Passive screening	Active screening (PoA)	Passive screening
Total follow ups	107	22	97	51	63	9	Not reported	321 (both active and passive groups)
Loss to follow ups	Not reported	None	2(2.1%)	None	None	Not reported	Not reported	55 (17.1% both active and passive groups)
Number of TB cases	3(2.8%	0%	0%	24(47.1%)	20(31.7%)	Unknown	unknown
Symptom complaints and duration at diagnosis
	Monney et al 2005				Verver et al 2001
	Active screening		Passive screening		Active screening		Passive screening
Proportion reporting symptoms at diagnosis	50.7%		82.4%		37%		Not reported
Mean(median) duration of symptoms before diagnosis	2 months (at least 8weeks)		2.5 months (at least 10weeks)		4.2 (0 weeks)		10.5 (7.5 weeks)
	No significance test reported				P-value < 0.001