Interobserver agreement for contrast-enhanced ultrasound of liver imaging reporting and data system: A systematic review and meta-analysis

Table 2 Analysis of interobserver agreement for included studies

Ref.	Kappa value (95%CI)	Weight in fixed model, %	Weight in random model, %
Chen et al[25]	0.81 (0.77, 0.84)	31.40	14.00
Schellhaas et al[20]	0.39 (0.14, 0.59)	3.80	11.40
Ling et al[28]	0.69 (0.52, 0.81)	3.90	11.40
Liu et al[26]	0.61 (0.45, 0.73)	5.80	12.30
Zhou et al[27]	0.87 (0.84, 0.90)	19.90	13.80
Tan et al[21]	0.94 (0.89, 0.97)	3.20	10.90
Wang et al[6]	0.77 (0.72, 0.81)	26.00	13.90
Cui et al1	0.67 (0.53, 0.77)	6.00	12.30

¹This is our study. CI: Confidence interval.