marginally significantp = 0.057
Of the five air pollutants, only PM 2.5 showed maximum annual average values that fell in the AQI “Moderate” range, as well as showed a marginally significant mean difference by dementia status (t(3812) = 1.905, p = 0.057), such that participants with dementia experienced slightly higher annual exposure to PM 2.5 (9.637 ± 1.615) compared to those without dementia (9.454 ± 1.641).