ables 1 and 2 summarise the most relevant results of the
questionnaires completed by school administrators. Most
schools partook in nutrition and/or physical activity programmes, although only some of them had had their staff
specifically trained in these areas (16.1% and 38.7%, respectively). Health-promotion policies were not usually reflected
in the school’s educational goals, and less than half of the
schools offered some type of organised physical activity during recess (48.4%) or lunch break (22.6%). In this regard,
the improvement of outdoor spaces and equipment (which
nearly 80% considered important or very important), and the
involvement of families and students (with values approximating 90%) were the most highly rated aspects in relation
to increasing physical activity.
Table 3 shows the main characteristics of the schoolchildren sample by sex, with particular emphasis on issues
related to their activity habits. Boys reported significantly
higher levels of activity than girls for every item pertaining
to physical activity (P < .05), except during lunch break and
between 6 and 10 pm. In addition, we did not find any significant differences between sexes in the daily hours of screen
time.
The associations between individual and environmental
variables are summarised in Table 4. This table only presents
data for the aspects of school health promotion that had
an impact on one or more health indicators in participants.
Thus, schoolchildren whose teachers had received training