borderline significancep -value = 0.073
The counties with BPRR ≥ 1 had reduced disparity in yearly ER visit rate with borderline significance (estimate = − 356.6/100,000, p -value = 0.073), but the difference was attenuated to almost 0 after adjustment for covariates (estimate = 0.1/100,000, p -value = 0.999).