Table 4.

Sensitivity analysis.

First author, Year	Quality Scale	Definition of High Quality	Quality
Quinhoneiro, 2018	Chalmers [61]	Score >50 % of total possible score	High
Mielgo-Ayuso, 2014	Jadad [62]	Score ≥3 out of 5	High
Cardoso, 2012	Jadad [62]	Score ≥3 out of 5	High
Auvichayapat, 2008	Jadad [62]	Score ≥3 out of 5	High
Lonac, 2011	Chalmers [61]	Score >50 % of total possible score	High
Belza, 2009	Jadad [62]	Score ≥3 out of 5	High
Roberts, 2005	Chalmers [61]	Score >50 % of total possible score	High
Mahler, 2015	Jadad [62]	Score ≥3 out of 5	High
Brown, 2009	Jadad [62]	Score ≥3 out of 5	High
Hill, 2007	Chalmers [61]	Score >50 % of total possible score	Low
Chantre, 2002	Chalmers [61]	Score >50 % of total possible score	Low
Thielecke, 2010	Jadad [62]	Score ≥3 out of 5	High
Gregersen, 2009	Jadad [62]	Score ≥3 out of 5	High
Boschmann, 2007	Jadad [62]	Score ≥3 out of 5	High
Dullo, 1999	Jadad [62]	Score ≥3 out of 5	High