Table 2. Jadad scores for the included studies.

Reference (year)	Randomization	Concealment of allocation	Double blinding	Withdrawals and dropouts	Jadad score
Barroso et al., 201731	2	1	2	1	6
Coelho et al., 201330	2	1	2	1	6
Suhr et al., 201429	2	1	2	1	6
Keohane et al., 201727	2	1	2	1	6
Gundapaneni et al., 201828	2	1	2	1	6
Coelho et al., 201232	2	1	2	1	6