marginally significantP = 0.049
3.2.4 Association of SMC with risk of cognitive impairment SMC assignment was not a statistically significant predictor of cognitive decline according to the log‐rank test ( P = 0.06) and the incidence rate ratio (1.391, CI = 0.844–2.454), and it was marginally significant in the Cox PH model described above ( P = 0.049).