Table 3.

Meta-regression analysis based on restricting studies to a similar measuring instrument

Pooled results	Value	95 % CI	P value	I 2 (%)
Sensitivity	0.75	0.72–0.78	0.0000	91.4
Specificity	0.84	0.79–0.88	0.6635	0.0
Positive LR	4.82	3.69–6.30	0.9627	0.0
Negative LR	0.18	0.09–0.35	0.0000	86.8
Diagnostic OR	18.57	12.98–26.56	0.2197	32.1