The decline in the number of members covered by private insurance entities "could seriously jeopardize the continuity of the system of public-private partnerships" This was said José Ramón Rubio, president of the Institute for the Development and Integration of Health (IDIS) , after learning of the data provided by the Ministry of Health, Social Services and Equality, which show a drop in number of members in 2012 of 0.99%, about 20,000 mutual, representing the largest decline in mutual since 2007.