Table 1.

Mud-bath therapy: number of patients included in the experimental and control groups.

Study	Treated Patients	Treatment	Control Group	Ongoing treatment	Total Patients
Fraioli A. et al. 2011	17	Mud-bath therapy	44	yes	61
Fioravanti A. et al. 2010	40	Mud-bath therapy	40	yes	80
Fioravanti A.et al. 2011	30	Mud-bath therapy	- -	- - -	30
Fioravanti A. et al. 2015	49	Mud-bath therapy	46	yes	95
Cantarini et al. 2007	30+24 (°)	Mud-bath therapy (∗)	20	yes (°°)	74
Total Patients	190		150		340

(°) 2 experimental groups included, the first one treated by mud-bath therapy, the second one with physical therapy.

(∗) Ongoing treatment.

(°) Not allowed any physical or pharmacological treatment during the study.

(°°) Not allowed glucocorticoids and intra-articular treatment with hyaluronic acid.