Table 1.
Mean school characteristics by BIC treatment status, baseline (2006/07).
| Never BIC | Ever BIC (<25%) |
Ever BIC (>25% but not full) |
Ever BIC (full school) |
|
|---|---|---|---|---|
| Breakfast participation rate | 24.5 | 22.9 | 23.5 | 24.6 |
| Lunch participation rate | 76.5 | 77.6 | 82.7 | 82.4 |
| BMI z-score | 0.008 | −0.006 | 0.095 | 0.160 |
| Percent obese | 21.1 | 20.5 | 21.9 | 26.2 |
| Reading z-score (grades 3–8) | 0.016 | −0.036 | −0.247 | −0.276 |
| Math z-score (grades 3–8) | 0.001 | −0.064 | −0.285 | −0.307 |
| Attendance rate | 92.1 | 91.8 | 89.7 | 91.2 |
| Percent eligible for free lunch | 67.3 | 68.9 | 81.8 | 80.6 |
| Percent ELL | 11.7 | 12.8 | 11.9 | 14.5 |
| Percent special education | 13.9 | 14.1 | 14.6 | 17.1 |
| Percent Asian | 12.4 | 11.6 | 3.1 | 4.8 |
| Percent black | 33.5 | 34.8 | 43.4 | 34.6 |
| Percent Hispanic | 38.5 | 38.5 | 49.4 | 55.9 |
| Percent white | 14.7 | 14.2 | 3.2 | 3.5 |
| Percent male | 50.7 | 51.4 | 50.1 | 50.0 |
| Percent enrollment grades K–5 | 60.1 | 57.2 | 59.5 | 65.1 |
| Percent in Brooklyn | 33.2 | 32.1 | 30.8 | 7.9 |
| Percent in Manhattan | 17.3 | 17.0 | 17.9 | 42.1 |
| Percent in Queens | 24.3 | 23.0 | 6.4 | 10.5 |
| Percent in Staten Island | 4.8 | 7.3 | 0.0 | 0.0 |
| Percent in Bronx | 20.3 | 20.6 | 44.9 | 39.5 |
| Percent UFM school | 45.1 | 40.1 | 45.5 | 45.9 |
| School starting time | 8:20 a.m. | 8:18 a.m. | 8:22 a.m. | 8:19 a.m. |
| Total enrollment | 657 | 754 | 695 | 660 |
| N (observed in 2007) | 807 | 165 | 78 | 38 |
Notes: Only regular public schools serving any of the elementary and middle grades are included in the above. All means are for the 2006/07 academic year, and thus are prior to any school’s adoption of BIC. “Never BIC” refers to schools that had not adopted BIC as of June 30, 2012. “Ever BIC” refers to any school that adopted BIC prior to June 30, 2012. Schools that ever adopted BIC are divided into three categories: (1) those that offered BIC to fewer than 25 percent of all classrooms; (2) those that offered BIC to 25 percent or more of classrooms, but did not offer it schoolwide; (3) those that reported offering BIC schoolwide. In the few cases where BIC coverage changed over time, we classified schools according to their greatest extent of coverage.