You also have to factor in life expectancy of various cohorts. Poor people will be healthier. Also note that the goal of ACA wasn't entirely to drop deathrate

You also have to factor in life expectancy of various cohorts. Poor people will be healthier. Also note that the goal of ACA wasn't entirely to drop deathrates. Unlike before, the combination of pre-existing conditions, and elimination of annual/lifetime maximums means that people are now able to get essential health care without risking bankruptcy from medical bills. There really is a true out-of-pocket maximum now for essential care, for anyone that has health insurance. This was not true before the ACA.