G-Induced Loss of Consciousness

Keywords: binary data, binomial regression

Description

Military pilots sometimes black out when their brains are deprived of oxygen due to G-forces during violent maneuvers. Glaister and Miller (1990) produced similar symptoms by exposing volunteers’ lower bodies to negative air pressure, likewise decreasing oxygen to the brain. The data lists the subjects' ages and whether they showed syncopal blackout related signs (pallor, sweating, slow heartbeat, unconsciousness) during an 18 minute period.


	Variable		Description

	Subject		Initials of the subject's name
	Age		Subject's age in years
	Signs		Whether subject showed blackout-related signs (0=No, 1=Yes)

Download

Data File (tab-delimited text)

Source

Glaister and Miller (1990). Aviation, Space and Environmental Medicine.

Hamilton, L. C. (1992). Regression with Graphics. Duxbury, page 243.

Analysis

Regress binary response on one continuous covariate. Not statistically significant but easy to understand.