But it is reassuring that including these additional controls does not significantly affect our results. We estimate an increase of 0.0076 ( p < 0.05) for the MWS and 0.0044 ( p < 0.05) for the previously uninsured, statistically indistinguishable from our results without province-by-year fixed effects. Private versus Public Utilization.—The 30 Baht program provided free care only in public, not private hospitals. Columns 3 and 4 present separate estimates for inpatient utilization in public and private hospitals. Reassuringly, we find the increase in utilization for the MWS group is entirely concentrated in public utilization (0.0081, p < 0.01) as opposed to private utilization (0.0009, p > 0.10).