Table 1 Information on four cross-sectional studies with fourth-grade children from Augusta, Georgia, USA
| Â | Study A [19] | Study B [21] | Study C [20] | Study D [18] |
|---|---|---|---|---|
School year | 1999-2000 | 2000-2001 | 2001-2002 | 2002-2003 |
Number of schools | 6 | 11 | 10 | 6 |
School codes | a, b, c, d, e, f | a, b, c, d, e, g, h, i, j, k, l | a, b, c, d, e, g, h, i, j, k | b, e, f, g, k, m |
Percent of children invited to participate in study who provided written child assent and parental consenta | 73% | 73% | 56% | 70% |
Number of children in study | 329 | 570 | 362 | 274 |
Questions on consent form (response options) | Does this child usually eat the school breakfast? (yes, no) Does this child usually bring breakfast from home to eat at school? (yes, no) Does this child usually eat the school lunch? (yes, no) Does this child usually bring lunch from home to eat at school? (yes, no) | Does this child usually eat breakfast? (yes, no) If yes, where? (home, school, other) Does this child usually eat the school lunch? (yes, no) Does this child usually bring lunch from home to eat at school? (yes, no) | Does this child usually eat breakfast? (yes, no) If yes, where? (home, school, other) | On school days, where does this child usually eat breakfast? (at home, at school, at home and school, this child usually does not eat breakfast) |
Average number of days that nametag recordsb were completed for breakfast (range) | 35 (26-51) | 26 (7-36) | 16 (12-18) | 7 (3-10) |
Average number of days that nametag records were completed for lunch (range)c | 10 (3-22) | 7 (3-11) | 4 (3-8) | 5 (3-6) |
Time of day when weight and height measurements were collected at school | Afternoon, after lunch | Afternoon, after lunch | Afternoon, after lunch | Morning, after breakfast |
Month when weight and height measurements were collected | March | March | March | November |