Table 1. General characteristics of schoolchildren from the city of Santa Cruz, 2011.

Variables	n	%
Scoliosis
Present	123	58
Absent	89	42
Age
7 to 9 years old	50	23.6
10 to 12 years old	85	40.1
13 to 15 years old	61	28.8
16 to 17 years old	16	7.5
Gender
Male	88	41.5
Female	124	58.5
Sexual maturation level
Prepubertal	48	22.6
Pubertal	143	67.5
Post-pubertal	21	9.9
Nutritional status
Eutrophic	132	62.3
Malnourished	27	12.7
Overweight/obese	53	25
Hand to ground distance
Fingers touching the ground	73	34.4
Fingers not touching the ground	139	65.6
Tibiotarsal joint angle
≤90°	16	7.5
>90°	196	92.5
Socioeconomic level
B1, B2	28	13.2
C, D, E, F	184	86.8
Level of physical activity
Active	184	86.8
Low-active	28	13.2
Time watching television every day
≤2 hours	135	63.7
>2 hours	77	36.3
Habit of sleeping in a hammock
No	79	81.4
Yes	18	18.6
Hours of sleep every night
<8 hours	11	5.2
8 to 10 hours	72	34
>10 hours	129	60.8
School supplies weight
Appropriate	199	93.9
Inappropriate	13	6.2
School supplies mode of transportation
Appropriate	134	63.2
Inappropriate	78	36.8