Table 2.
OLS Regression of School Mean BMI by School Type.
| 2010: 7th |
2011: 8th |
2012: 9th |
All (7th–9th) |
2011: 12th |
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|---|---|---|---|---|---|---|---|---|---|---|
| Model 1 (1) | Model 2 (2) | Model 1 (3) | Model 2 (4) | Model 1 (5) | Model 2 (6) | Model 1 (7) | Model 2 (8) | Model 1 (9) | Model 2 (10) | |
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Panel A. Girls
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| Single-sex school | 0.456*** (0.099) | 0.308** (0.134) | 0.441*** (0.120) | 0.330** (0.155) | 0.548*** (0.118) | 0.427*** (0.162) | 0.415*** (0.062) | 0.294*** (0.079) | 0.149 (0.110) | 0.197 (0.131) |
| % of receiving lunch suppots | 0.006** (0.003) | 0.021*** (0.004) | 0.003 (0.002) | 0.006*** (0.002) | 0.004 (0.007) | |||||
| Private school | 0.170 (0.113) | 0.106 (0.129) | 0.111 (0.139) | 0.120* (0.066) | −0.066 (0.130) | |||||
| 8th grade | 0.574*** (0.020) | 0.575*** (0.020) | ||||||||
| 9th grade | 0.890*** (0.021) | 0.891*** (0.021) | ||||||||
| Constant | 20.086*** (0.198) | 20.058*** (0.197) | 20.214*** (0.237) | 19.992*** (0.232) | 20.771*** (0.234) | 20.736*** (0.236) | 19.926*** (0.037) | 19.892*** (0.043) | 21.469*** (0.155) | 21.436*** (0.184) |
| N | 317 | 317 | 318 | 318 | 320 | 320 | 2,868 | 2,868 | 137 | 137 |
| Adj-R2 | 0.252 | 0.270 | 0.229 | 0.295 | 0.210 | 0.217 | 0.377 | 0.389 | 0.175 | 0.180 |
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Panel B. Boys
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| Single-sex school | 0.142 (0.096) | −0.072 (0.126) | 0.344*** (0.110) | 0.159 (0.148) | 0.444*** (0.099) | 0.255* (0.133) | 0.344*** (0.051) | 0.144** (0.061) | 0.333*** (0.085) | 0.379*** (0.105) |
| % of receiving lunch suppots | 0.002 (0.004) | 0.006 (0.004) | 0.004* (0.002) | 0.004** (0.001) | 0.001 (0.004) | |||||
| Private school | 0.289*** (0.107) | 0.263** (0.126) | 0.210* (0.119) | 0.256*** (0.049) | −0.068 (0.102) | |||||
| 8th grade | 0.494*** (0.021) | 0.495*** (0.021) | ||||||||
| 9th grade | 0.875*** (0.023) | 0.876*** (0.023) | ||||||||
| Constant | 21.571*** (0.192) | 21.563*** (0.191) | 21.886*** (0.226) | 21.818*** (0.228) | 22.257*** (0.211) | 22.203*** (0.211) | 21.316*** (0.109) | 21.297*** (0.113) | 22.706*** (0.116) | 22.706*** (0.128) |
| N | 317 | 317 | 322 | 322 | 326 | 326 | 2,888 | 2,888 | 146 | 146 |
| Adj-R2 | 0.202 | 0.223 | 0.231 | 0.249 | 0.231 | 0.254 | 0.363 | 0.377 | 0.162 | 0.166 |
Note: In Model 1 we examine the relationship between school mean BMI and attending single-sex schools with dummy variables for 46 middle school districts and 11 high school districts. In Model 2 we additionally control for the proportion of students receiving lunch supports and an indicator to denote private school status.
***
p<0.01,
**
p<0.05,
*
p<0.1.