 In order to answer the primary and secondary objectives of this study, the investigators will run an inferential analysis comparing data at baseline, at 3 months and at one year in the two treatment groups. Tests for independent samples will be used in every case between the control and experimental groups. Either the chi-square test or Fishers exact test will be used, as appropriate, to compare categorical variables and Students T-test will be used to compare continuous variables; if the variable under study does not meet the conditions for the applicability of parametric tests, a non-parametric alternative, the Mann Whitney U test, will be used. 