Table 4.

Total subject number and RLN variations prevalence of the included studies.

Author	N Patients	Prevalence Number and Percentage
[3]	253	16/6.32%
[8]	2068	601/29.06%
[12]	1700	4/0.24%
[15]	603	4/0.66%
[27]	2658	15/0.56%
[64]	16	16/100%
[28]	4	4/100%
[11]	2158	16/0.74%
[30]	6	6/100%
[31]	137	101/73.72%
[32]	766	4/0.52%
[33]	49	16/32.65%
[36]	100	100/100%
[37]	993	3/0.30%
[38]	2068	858/41.49%
[40]	7392	28/0.38%
[41]	5344	128/2.39%
[42]	55	55/100%
[43]	294	294/100%
[45]	36	36/100%
[66]	2	2/100%
[68]	2404	690/28.7%
[58]	94	40/42.55%