Table 1.

Characteristics of study participants (n = 157).

Variables	n	%
Age
<16 years old	68	43.3
≥16 years old	89	56.7
Sex
Female	109	69.4
Male	48	30.6
Nutritional status
Obese	19	12.1
Overweight	1	0.06
Normal	126	80.3
Undernourished	11	7.0
Caffeine intake before sleeping
Yes	46	29.3
No	111	70.7
Noises during sleep
Yes	46	29.3
No	111	70.7