. 2007 Oct 31;6:35. doi: 10.1186/1475-2891-6-35

Table 1.

Situations of energy drink use among college energy drink users in an average month for the current semester

Situation	% of females	% of males	χ²	p (sex)
Insufficient sleep^a	67	68	0.17	.68
Need energy (in general)^a	62	69	1.27	.26
Studying or major project^b	46	56	2.22	.14
Driving car for long period of time^a	40	51	3.01	.08
Mix with alcohol while partying^a	57	50	1.33	.25
Treat hangover^a	16	18	0.18	.67

^an = 146 females, 107 males, χ²(1, N = 253); ^bn = 145 females, 104 males, χ²(1, N = 249).