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. Author manuscript; available in PMC: 2012 Aug 19.
Published in final edited form as: Nutr Res. 2011 Aug 19;31(8):579–585. doi: 10.1016/j.nutres.2011.07.003

Table 3.

Parameter estimates for predictors of total vitamin D intake in the National Heart, Lung and Blood Institute Growth and Health Study.

Effect Parameter estimates [IU/day of Vitamin D] Statistical Significance
Race (race=White is reference group) 56.30 p<.0001
Visit −6.88 p<.0001
Race*Visit −2.64 p=.014
Breakfast consumption 18.00 p<.0001
Energy (average calories per day) 0.072 p<.0001
Dieting frequency −2.60 p=.274
Parental education −4.44 p=.189
Site (site=3 is reference group) −7.56 [site 1], −8.36 [site 2] p=.069