Fig 1.
Study flow diagram.
Table 1.
Basic characteristics of included studies.
Fig 2.
Results of QUADAS-2, Risk of bias and concerns regarding applicability.
Fig 3.
Forest plot of pooled sensitivity.
Fig 4.
Forest plot of pooled negative predictive value.
Fig 5.
SROC curve.
Table 2.
Summary of subgroup analysis by different clinical characteristics.
Fig 6.
Deeks' funnel plot with regression line.