Table 1. Age, brain pH, postmortem interval, and methamphetamine in the blood level of methamphetamine and control postmortem samples that were involved in the study.

	Methamphetamine (n=21)	Control (n=21)	p-value
Age	27.61±9.08	30.09±10.43	0.42
Brain pH	6.61±0.25	6.48±0.23	0.09
PMI	17.38±4.55	16.9±4.47	0.74
Blood level of methamphetamine	798 ng/mL (569.3–1025.6 ng/mL min–max)	–	–

PMI: postmortem interval.