Table 1.

 Inter-rater agreement using risk of bias tool

Domain	Risk of bias assessments			Weighted κ (95% CI)
	High	Unclear	Low
Sequence generation	4	107	52	0.74 (0.64 to 0.85)
Allocation concealment	5	105	53	0.50 (0.36 to 0.63)
Blinding	16	49	98	0.35 (0.22 to 0.47)
Incomplete data	25	52	86	0.32 (0.19 to 0.45)
Selective reporting	16	19	128	0.13 (−0.05 to 0.31)
Other sources of bias	15	85	63	0.31 (0.17 to 0.44)
Overall risk of bias	61	96	6	0.27 (0.13 to 0.41)