Consumption of Energy Drinks and Their Effects on Sleep Quality among Students at the Copperbelt University School of Medicine in Zambia

Table 1

Characteristics of the study population.

Characteristics		All	Poor Sleep Quality	Good Sleep Quality	P-Value
Age (n = 132)	18-20	13 (9.8%)	12 (15%)	1 (1.9%)	0.032
	21-24	101 (76.5%)	56 (70%)	45 (86.5%)
	>24	18 (13.6%)	12 (15%)	6 (11.5%)
Gender (n=137)	Male	82 (59.9%)	47 (56%)	35 (66%)	0.241
	Female	55 (40.1%)	37 (44%)	18 (34%)
Year of study (n = 137)	Second year	84 (61.3%)	71 (86.6%)	13 (23.6%)	<0.01
	Third year	53 (38.7%)	11 (13.4%)	42 (76.4%)
Program (n = 118)	MBChB	88 (74.6%)	56 (82.4%)	32 (64%)	0.047
	BDS	25 (21.2%)	11 (16.2%)	14 (28%)
	BSc CM	5 (4.2%)	1 (1.5%)	4 (8%)
Use of Energy Drinks (n = 141)	No	102 (27.7%)	49 (58.3%)	53 (93%)	<0.01
	Yes	39 (73.2%)	35 (41.7%)	4 (7%)