Test-treatment RCTs are susceptible to bias: a review of the methodological quality of randomized trials that evaluate diagnostic tests

Table 1 Search strategy for test-treatment RCTs conducted in CENTRAL Issue 2 2009

Search strategy		Hits
#1	sensitiv^a or diagnose or diagnosis or diagnostic^a in Clinical Trials	70,052
#2	random^a in Clinical Trials	335,175
#3	“study design” next “rct” in Clinical Trials	150,275
#4	(#2 OR #3)	449,453
#5	(#1 AND #4)	50,419
#6	(#5), from 2004 to 2007	12,892

ISSN: 1471-2288