Table 4A.

Prevalence of discrepant results

Study	Sample size	Proportion (%)	95% CI	Weight (%)
				Fixed	Random
Bub et al. (2016)[15]	21353	0.487	0.39 to 0.59	3.32	25.5
Clarke et al. (2016)[16]	608486	0.0542	0.049 to 0.060	94.66	25.53
Laget et al. (2019)[17]	273	100	98.66 to 100.00	0.043	23.5
Krstic et al. (2017) [18]	12689	0.449	0.34 to 0.58	1.97	25.48
Total (fixed effects)	642801	0.0696	0.063 to 0.076	100	100
Total (random effects)	642801	15.376	8.80 to 23.38	100	100