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Table 5 Salivary IgA concentration and secretion rate before and after two-months of cereal ingestion (mean ±SD)*

From: Ingestion of micronutrient fortified breakfast cereal has no influence on immune function in healthy children: A randomized controlled trial

Variable Pre-study Post-study Treatment interaction p-value
Saliva IgA concentration (μg . mL-1)    0.461
   Low 333 ± 181 314 ± 152  
   Medium 292 ± 143 302 ± 151  
   High 315 ± 159 289 ± 158  
Saliva protein IgA concentration (μg . mg-1)    0.675
   Low 471 ± 162 484 ± 156  
   Medium 444 ± 170 419 ± 155  
   High 535 ± 224 499 ± 187  
Saliva IgA secretion rate (μg . min-1)    0.476
   Low 173 ± 135 220 ± 163  
   Medium 185 ± 118 233 ± 129  
   High 207 ± 118 212 ± 74  
  1. * Low (N = 21), medium (N = 24), high (N = 19) = level of nutrient fortification of the cereal product.