Table 1 Summary table describing the national/regional nutrition surveys included in the EXPOCHI project
Country | Time span fieldwork | Population | Sampling | Sampling frame | Nr. of subject | Age range (y) | Sex | PR* |
|---|---|---|---|---|---|---|---|---|
Belgium | Oct 2002 - Feb 2003 | Preschoolers | Multi-stage cluster design (43 schools PSU randomly selected in the five different provinces of Flanders) | Register of schools from Ministry of Education | 696 (3 days) 1027 (> 1 day) | 2.5-6.5 | M/F | 50% |
Netherlands | 2006-2007 | Toddlers/Preschoolers | Random sampling stratified by age and gender | Consumer panels | 1279 | 2-6 | M/F | 78% |
France | Dec 2005 - May 2007 | All age and gender groups | Multi-stage cluster design | National census for 1998 & additional data of houses & buildings built between 1999 & 2004 | 574 | 3-10 | M/F | 69% |
Italy | Oct 2005 - Dec 2006 | All age and gender groups | Multi-stage stratified design (households as clusters) | Telephone directories at municipality level | 1329 households | 1-10 (no max. age limit) | M/F | 33% |
Spain1 | May 1998 - April 2000 | All age and gender groups | Multi-stage stratified design (geographical area, population size) and randomised by clusters in two stages (municipalities, individuals). | From national census | 3534 (1 day) 850 (2 days) | 1-24 | M/F | 68% |
Spain2 | March 2004 - Feb 2005 | children and adolescents | Multi-stage sampling design | A Regional Register from the Basque Country Statistics Institute, EUSTAT | 1178 households | 4-18 | M/F | 77% |
Denmark | June 2000 - December 2002 | children | Random sampling | From civil registration system | 825 | 4-10 | M/F | 71.4% |
Czech Republic | Nov 2003-Nov 2004 | Age groups 4 - 90 years - national food consumption study | Multistage sampling design | Czech national census data from 2001 | 413 | 4-14 | M/F | 54% |
Finland I | Ongoing cohort study | Finnish Type I Diabetes Predictin and Prevention Study | Cohort recruited based on genetic susceptibility on diabetes | All newborn babies in the area of three university hospitals | 500 (altogether 1500) | 1, 3, 6 | M/F | NA |
Finland II | Ongoing cohort study (participants were 10 yrs in 2000-2002) | Special Turku Coronary Risk Factor Intervention Study (control group) | Cohort recruited from the Turku well-baby clinics | All children aged 5 months and living in the Turku city were invited to the well-baby clinics. | 278 (altogether) | > 6 years | M/F | NA |
Greece | February 2004-June 2005 | Preschoolers | The sample consisted of all state-run nursery schools/playgroups in one of the four prefectures of Crete | Register of schools from Ministry of Education | 847 (total sample size 1755) | 4 to 6 | M/F | 48% |
Sweden | May/June - Oct/Nov 2003 | Children | Multi-stage cluster design | National register (for 4 years old) and list of schools (for 8-9 and 11-12 years old) were used | 2600 | 3 to 13 | M/F | 73% |
Cyprus | Oct 2002 - June 2006 | Children, adolescents | Multi-stage cluster design | Register of schools from Ministry of Education | 1000 (3 days) 500 (1 day) | 2-18 (2-10 only 1 day) | M/F | 52% |
Poland | Sept.-Dec. 2000 | All age and gender groups from 1362 surveyed households from all area of Poland | Random sampling using Central Statistical Office internal procedure | Random subsample of Polish population | 892 (from 4134) | 1-14 | M/F | 95% |
Germany | Ongoing cohort (since 1985) | German children and adolescents | An (open) cohort sample with about 40 new infants starting annually | Invitations and recruitment are mainly by study families who inform other parents about the study | > 600 | 1-10 | M/F | NA |