Table 1. Prevalence and respective 95% confidence intervals of clinical and epidemiological characteristics of 9th grade students in the study, National School Health Survey of 2012.
Characteristics | n | % | 95%CI | |
---|---|---|---|---|
Socioeconomic/demographic | ||||
Macro-region | North | 108,350 | 8.0 | 7.5-8.4 |
Northeast | 25.3 | 23.7-27.1 | ||
Mid-West | 7.9 | 6.7-9.2 | ||
Southwest | 44.3 | 41.6-47.0 | ||
South | 14.6 | 13.4-15.8 | ||
School | Public | 108,350 | 82.8 | 77.8-86.9 |
Private | 17.2 | 13.1-22.2 | ||
Child’s sex | Female | 108,350 | 52.2 | 50.2-54.3 |
Male | 47.8 | 45.7-49.8 | ||
Child’s ethnicity | Others | 108,296 | 63.2 | 57.8-68.3 |
White-Caucasian | 36.8 | 31.7-42.2 | ||
Child’s age | ≤14 years | 108,350 | 68.5 | 59.4-76.4 |
>14 years | 31.5 | 23.6-40.6 | ||
Living with parents | No | 108,191 | 37.8 | 35.9-39.8 |
Yes | 62.2 | 60.2-64.2 | ||
Mother’s education | No study | 90,035 | 10.0 | 8.4-12.0 |
Study | 90.0 | 83.0-91.6 | ||
Father’s education | No study | 83,539 | 15.2 | 13.1-17.4 |
Study | 84.8 | 82.6-86.9 | ||
Eating habits | ||||
Intake of fresh food in the past 7 days | <5 days | 107,792 | 82.1 | 80.9-83.3 |
≥5 days | 17.9 | 16.7-19.1 | ||
Intake of ultra-processed food in the past 7 days | >2 | 107,792 | 64.4 | 63.0-65.8 |
≤2 | 35.6 | 34.2-37.0 | ||
Lunch time or dinner time in the presence of parents or guardians in the past week | ≤4 days | 108,281 | 28.5 | 26.5-30.5 |
>4 days | 71.5 | 69.5-73.5 | ||
Meals in front of the TV or while studying | Yes | 108,221 | 81.2 | 78.7-83.4 |
No | 18.8 | 16.6-21.3 | ||
Breakfast in the past week | ≤4 days | 108,251 | 38.1 | 35.8-40.5 |
>4 days | 61.9 | 59.5-64.2 | ||
Drug use history | ||||
Cigarette | Yes | 108,329 | 19.6 | 17.1-22.3 |
No | 80.4 | 77.7-82.9 | ||
Alcohol | Yes | 108,350 | 66.6 | 64.0-69.2 |
No | 33.4 | 30.8-36.0 | ||
Illicit drugs | Yes | 108,327 | 7.0 | 5.3-9.4 |
No | 93.0 | 90.6-97.7 | ||
Respiratory problems | ||||
History of asthma* | Yes | 108,115 | 12.4 | 11.4-13.5 |
No | 87.6 | 86.5-88.6 | ||
Health service history | ||||
Has sought health care service in the last 12 months | Yes | 108,227 | 48.2 | 46.1-50.2 |
No | 51.8 | 49.8-53.9 |
95%CI: 95% confidence interval; *diagnosis by a physician at some point in their life.