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Table 3 Outcomes, instruments and assessment points in the PEGASO study

From: Promoting healthy teenage behaviour across three European countries through the use of a novel smartphone technology platform, PEGASO fit for future: study protocol of a quasi-experimental, controlled, multi-Centre trial

Outcome Instrument Assessment point
   BL M2 M4 M6
Dietary habits Mediterranean Diet Quality Index in children and adolescents (KIDMED questionnaire) + 5 additional questions X    X
Physical activity Physical Activity Questionnaire for Adolescents (PAQ-A) + 3 additional questionnaires X    X
Sedentary behaviour Screen time-based sedentary behavior questionnaire (SSBQ) X    X
Sleeping habits Sleep Habits Survey (SHS) X    X
Knowledge questionnaire Ad hoc questionnaire X    X
Anthropometric Measurements   X    X
Height Stadiometer SECA 213 X    X
WC Flexible graduated measuring tape (SECA 201) X    X
Weight England, Catalonia, Italy: Homologated X    X
BMI electronic scale Tanita SC240MA     
% of body fat Scotland: Tanita MC780MA Multi X    X
% of body water Frequency Segmental Body Composition Analyser X    X
Family affluence and self-reported health status Family Affluence Scale (FAS) + 1 question from the Social Functioning subscale −12 (SF-12) X    
Motivation Perceived Competence Scale X X X X
Usability System Usability Scale    X X
Emotional Response to the Platform Emotional Metric Outcome questionnaire    X X
Satisfaction, Trust, Reputation Ad hoc questionnaire    X X
User Experience Focus Groups    X X
  1. In italics, outcomes assessd only in the intervention group. All the other outcomes were assessed in both, intervention and comparative group
  2. Additional questions: Research team included additional questions in order to better assess the target outcome in case no validated questionnaire were found
  3. Parent’s undertook an ad-hoc questionanire in order to assess sociodemographic characteristics, Socio Economic Status (SES) and Family structure and living conditions of the family
  4. WC Waist Circumference, BMI Body Mass Index
  5. BL Baseline, M2 Month 2, M4 Month 4, M6 Month6