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. 2021 Dec 2;5(12):e24840. doi: 10.2196/24840

Table 3.

Changes in questionnaire findings (pre vs post) according to the modify, improve, and maintain percentile categories.

Variable Modify percentile category, % Improve percentile category, % Maintain percentile category, % Change (Δ), % P valuea

Pre Post Pre Post Pre Post Modify percentile Improve percentile Maintain percentile
KIDSCREEN-52










Physical well-being 18.4 18.1 67.4 50.0 14.2 23.9 −0.3 −9.4 9.7 .001

Psychological well-being 27.5 7.6 66.8 78.5 5.7 13.9 −19.9 11.8 8.2 .001

Mood/emotion 8.8 5.4 78.5 76.1 12.7 18.4 −3.3 −2.4 5.7 .03

Self-perception 12.1 10.3 87.9 89.7 0.0 0.0 −1.8 1.8 0.0 .42

Autonomy 10.6 4.5 77.3 72.5 12.1 23.0 −6.0 −4.8 10.9 .001

Parent relationship 8.8 8.2 91.2 91.8 0.0 0.0 −0.6 0.6 0.0 .89

Financial resources 13.3 4.5 86.7 95.5 0.0 0.0 −8.8 8.8 0.0 .001

Peers 10.0 6.3 82.2 78.2 7.9 15.4 −3.6 −3.9 7.6 .003

School environment 10.3 6.9 77.9 78.2 11.8 14.8 −3.3 0.3 3.0 .12

Social acceptance 13.3 7.9 86.7 92.1 0.0 0.0 −5.4 5.4 0.0 .01
KIDMEDb 9.4 7.3 76.7 78.2 13.9 14.5 −2.1 1.5 0.6 .44
PAQ-Cc 17.8 12.4 80.4 86.4 1.8 3.0 −5.4 4.2 1.2 .07

aP value is for the change (Δ).

bKIDMED: Mediterranean Diet Quality Index for children and adolescents.

cPAQ-C: Physical Activity Questionnaire for Older Children.