Table 1 Cohorts used in the study
From: Food environment and childhood obesity: the effect of dollar stores
Years | |||||||
|---|---|---|---|---|---|---|---|
2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | |
2004 cohort | ✓ | ✓ | ✔ | ✔ | |||
K | 1st grade | 2nd grade | 4th grade | ||||
2005 cohort | ✓ | ✓ | ✔ | ✔ | |||
K | 1st grade | 2nd grade | 4th grade | ||||
2006 cohort | ✓ | ✓ | ✔ | ✔ | |||
K | 1st grade | 2nd grade | 4th grade | ||||