Table 3.

Summary of significant correlations between core body temperature at the club, and other dependent variables (viz: Ecstasy/MDMA usage, other drug usage, and subjective feeling states)

Variable	Body Temperature	Significance level
Ecstasy/MDMA usage
Ecstasy/MDMA use at club	r = +0.45	P < 0.001
Age first time took Ecstasy/MDMA	r = −0.32	P < 0.05
Last time took Ecstasy	r = −0.35	P < 0.05
Feeling states
Feeling Hot at club	r = +0.34	P < 0.01
Feeling Energetic 2–3 d later	r = −0.24	P < 0.05
Feeling Elated 2–3 d later	r = −0.34	P < 0.01
Feeling Tired 2–3 d later	r = +0.35	P < 0.01
Poor memory 2–3 d later	r = +0.34	P < 0.01
Mood fluctuations in past 6 months	r = +0.30	P < 0.05
Other drug usage
Cigarette use at club	r = +0.48	P < 0.001
Cigarette daily (general usage)	r = +0.55	P < 0.001
Cannabis use at club	r = −0.21	P < 0.10
Cannabis monthly (general usage)	r = −0.51	P < 0.001