borderline significantP value = 0.086
When individuals with ATSs and individuals with ketamine in their systems were examined separately, a prominent age acceleration was found among those deceased individuals with the presence of any ketamine ( n = 7) in both the NAcc (an increase of 16.1 years in the median; P value = 0.003) and the PFC (an increase of 13.9 years in the median; P value = 0.006), and a borderline significant age acceleration among those deceased individuals with the presence of any ATS ( n = 9) in both the NAcc ( P value = 0.086) and the PFC ( P value = 0.056).