Description

Brain tissue pH at time of death

Format

A data frame with 54 observations on the following 5 variables.

pH

Brain tissue pH

Sex

F or M

Ethnicity

AfricanAmerican, Asian, Caucasian, or PacificIslander

Age

Age at death

DeathType

Cause of death (Cardiac, Other, or Suicide)

Details

These are data from a PNAS article (supplemental file) on pH in brain tissue samples for controls and for people who had Major Depressive Disorder. We extracted just the controls (roughly 3/4 of whom died of cardiac arrest).

Source

Jun Z. Li et al. (2013), "Circadian patterns of gene expression in the human brain and disruption in major depressive disorder," PNAS, vol 110, no. 24, www.pnas.org/cgi/doi/10.1073/pnas.1305814110

Data extracted from Supporting Information, Table S4: Li et al. www.pnas.org/cgi/content/short/1305814110