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Table 1 Overview of data collection and response rates per country

From: EuropeaN Energy balance Research to prevent excessive weight Gain among Youth (ENERGY) project: Design and methodology of the ENERGY cross-sectional survey

  Belgium Greece Hungary Netherlands Norway Slovenia Spain Total
School level         
   N 26 37 29 23 21 15 24 175
   Response rate (%) 29% 54% 71% 5% 36% 100% 72% -
   No. of completed audits 26 34 321 23 21 15 21 172
   No. of completed SMQ 19 37 29 15 20 15 21 156
Child level         
   No. completed Questionnaires 1003 1077 1022 926 1004 1178 1024 7234
   Response rate Questionnaire 82% 94% 100% 89% 99% 98% 97% -
   No. completed Anthropometry 1005 1077 1022 898 980 1146 1024 7152
   Response rate (anthropometry) 82% 94% 33.2% 87% 45% 96% 97% -
   No. of measured accelerometry 194 215 200 199 N/A N/A N/A 808
   Response rate (Accelerometry) 84% 97% 19.9% 85% n/a n/a n/a -
Parent level         
   No. of completed questionnaire 763 1008 932 404 903 1028 964 6002
   Response rate Questionnaire 62% 83% 91% 44% 89% 87% 94% -
  1. N/A: Not applicable; SMQ = School Management Questionnaire
  2. 1. In Hungary some schools had more than one location; therefore the number of audits is larger than the number of schools.