Study	Endpoint (weeks)	Treatments compared				Mean difference vs placebo			SE of mean difference
Albert 2011	52	Placebo	Azithromycin 250 mg once daily			‐2.2			0.7853
Berkhof 2013	12	Placebo	Azithromycin 250 mg once daily three times per week			‐7.5			2.5456
He 2010	26	Placebo	Erythromycin 125 mg three times daily			‐3			5.6801
Sethi 2010	48	Placebo	Moxifloxacin 400 mg once daily (5 days every 8 weeks)			‐1.2			0.9231
Simpson 2014	12	Placebo	Azithromycin 250 mg once daily			6.1			5.31927
Uzun 2014	52	Placebo	Azithromycin 500 mg once daily three times per week			‐0.61			2.622449
Brill 2015*	13	Placebo	Doxycycline 100 mg once daily	Azithromycin 250 mg once daily three times per week	Moxifloxacin 400 mg once daily (5 days every 4 weeks)	1.02	‐2.29	‐1.88	3.135	3.212	3.426
						0.88	‐2.35	‐2.25	3.132	3.085	3.233