Tenet Healthcare Corp. has reported Adjusted EBITDA of $336 million for the Q4 2012, up $48 million from the fourth quarter of 2011. Parkland Health & Hospital System Board of Managers has re-elected its board chair. The percentage of adults with employer-sponsored insurance stabilized in 2012 after three years of decline, according to a Gallup survey. The number of Americans remotely monitored at home is expected to grow six-fold by 2017 according to InMedica, a division of IMS Research.