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Table 4 Progressively fitted models for serum ORAC with p values (hierarchical method) [male smokers excluded].

From: A forced titration study of the antioxidant and immunomodulatory effects of Ambrotose AO supplement

Effect

df

Model 1

Model 2

Model 3

Intercept

1

0.000

0.000

0.000

Group

1

0.206

0.096

 

Linear dose

1

0.158

0.153

0.135

Quadratic dose

1

0.047

0.045

0.047

Linear dose * Group

1

0.210

  

Quadratic dose * Group

1

0.959

 Â