Please select the eligibility criteria that correspond to the clinical trial below.
Title: ACTIVITAL: Health Promotion Intervention in Ecuadorian Adolescents to Promote Healthy Dietary and Physical Activity Patterns.
Brief Summary: Worldwide, low-income and middle-income countries are undergoing rapid demographic and nutritional changes. Populations tend to move from their traditional food habits towards dietary patterns characterized by a more energy-dense diet, while urbanization and technology (work, transport) play a role in the reduction of their physical activity. This shift towards energy-dense diets and lower levels of physical activity are key determinants of chronic diseases. Nowadays, childhood overweight and obesity are becoming a major threat to public health all in low-income and middle-income countries. Clearly, not properly addressing this health problem will only aggravate the already enormous impact of chronic diseases on the social and economic development of these countries. This study aims to develop a culturally relevant school-based prevention intervention among Ecuadorian adolescents (11-13 years old) in Cuenca. The intervention will target behavioural nutrition and physical activity. Intervention strategies will be developed based on theoretical behavioural change models integrated in two complementary frameworks, i.e. (i) the Intervention Mapping protocol, and (ii) the Comprehensive Participatory Planning and Evaluation protocol.

The study includes two phases:

1. A formative research, which will be conducted in order to understand the causality of the school environment and unhealthy eating and low physical activity levels in school-going adolescents, aged 12-13 years old.
2. A paired, cluster-randomized controlled trial including 1400 adolescents (12-13 years old) from 10 pairs of schools (i.e. clusters). Within each pair of clusters, one cluster will be randomly assigned to the intervention and the other to the control group.


Options:
A: Inclusion Criteria:

* 11-13 years old
* school-going
* willing to participate

Exclusion Criteria:

* pregnant
* severe medical/physical disorder
B: Inclusion Criteria:

* All six full-time schools with the program called Programa Saúde na Escola in Fortaleza were eligible
* students of both sexes
* students aged 12-15 years
* students who are enrolled in 7-9 grade classes

Exclusion Criteria:

* students who are younger than 12 years-old and older than 15 years-old
* students with uncompleted data at baseline or 4-months follow-up
* students who are absence in the school days with data collection
* students who dropout the school
* students who refused to participate in data collection or intervention
C: Inclusion Criteria:

* Student enrolled in Health, Biology, or Public Health course

Exclusion Criteria:

* Cognitive ability unable to read or respond to questions in program
D: Inclusion Criteria:

* High school girls
* Low levels of physical activity - defined as being in precontemplation, contemplation, or preparation stages of change for physical activity with activity levels at, or below, 30 minutes per day/three days per week outside of school physical education class
* Priority will be given to girls with a body mass index (BMI) greater than or equal to the 75th percentile for age and gender

Exclusion Criteria:

* BMI less than the 25th percentile for age and gender

Answer: A