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Table 2 Average daily caloric, carbohydrate, protein, and fat intakes of children

From: Access to food outlets and children's nutritional intake in urban China: a difference-in-difference analysis

  Kilocalorie Carbohydrate Protein Fat
OLS ‘04 OLS ‘06 DID OLS ‘04 OLS ‘06 DID OLS ‘04 OLS ‘06 DID OLS ‘04 OLS ‘06 DID
Age 35.09 (.798) 467.60*** (.008) 1275.00* (.069) 18.19 (.325) 77.33*** (.001) 157.80 (.159) -3.23 (.587) 17.37*** (.010) 53.30** (.047) -2.77 (.736) 10.15 (.357) 45.89 (.231)
Age squared 1.88 (.760) -16.04** (.014) -10.67** (.038) -.27 (.748) -2.67*** (.003) -1.72** (.037) .24 (.373) -.61** (.014) -.22 (.27) .22 (.532) -.34 (.417) -.33 (.243)
Income per capita 35.58*** (.000) 7.45 (.436) 15.02 (.107) 4.28** (.012) .56 (.688) 1.28 (.388) 1.22** (.014) .38 (.416) .39 (.276) 1.51* (.055) .40 (.504) .94* (.067)
Wet market density 44.39*** (.001) 4.75 (.760) 32.25*** (.005) 6.80*** (.006) -.53 (.825) 3.43* (.057) 1.60*** (.008) -.07 (.909) 1.35*** (.002) 1.20* (.089) .79 (.337) 1.47** (.017)
Income * wet market density -4.00*** (.004) .33 (.904) -2.72** (.044) -.60** (.018) -.05 (.900) -.27 (.213) -.10 (.129) .10 (.364) -.07 (.150) -.13* (.079) .018 (.920) -.15** (.041)
Supermarket density -.83 (.906) 12.81 (.414) -6.26 (.480) -.06 (.967) 1.86 (.471) .061 (.965) -.11 (.672) .13 (.808) -.38 (.260) -.013 (.974) .54 (.584) -.61 (.208)
Fast food restaurant density .23 (.990) -31.49* (.070) -9.63 (.737) -.37 (.880) -2.67 (.543) -.49 (.914) -.85 (.265) -.29 (.463) .01 (.996) .57 (.698) -2.19*** (.000) -.82 (.601)
Interaction of being under 12 and fast food restaurant density -32.21 (.182) 15.89 (.505) 20.85 (.617) -4.80* (.093) 0.67 (.890) -1.02 (.878) -.32 (.729) .79 (.399) .46 (.772) -1.31 (.481) 1.08 (.258) 2.57 (.260)
Owning car -53.74 (.659) 78.97 (.512) 208.90 (.292) -30.19 (.293) 20.49 (.353) 37.03 (.242) 1.64 (.807) 6.07 (.190) 10.04 (.185) 6.81 (.611) -2.74 (.711) 2.59 (.811)
Bus stop -84.03 (.289) 65.59 (.539) 147.80 (.206) 3.32 (.797) 13.16 (.399) 32.46* (.082) -3.84 (.274) -1.62 (.713) 7.22 (.106) -9.08* (.066) 2.14 (.721) -1.32 (.836)
Maternal education -21.36* (.086) 14.19 (.487)   -4.98** (.031) -.94 (.723)   .23 (.663) .53 (.489)   -.26 (.826) 1.79 (.132)  
Female -274.60*** (.001) -363.70*** (.000)   -40.26*** (.001) -50.36*** (.000)   -14.52*** (.000) -9.94*** (.005)   -6.18 (.240) -13.56** (.014)  
Adj./within R2 .36 .18 .11 .35 .18 .09 .31 .16 .13 .12 .10 .07
Prob. > F .00 .00 .04 .00 .00 .09 .00 .00 .01 .01 .00 .36
  1. Note: N = 185 for OLS regressions; N = 370 for DID regressions; *p < .10, **p < .05, ***p < .01; p-values included in parentheses; robust standard errors are used in OLS regressions.