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Table 5 Postprandial responses for capillary blood glucose and plasma insulin following consumption of 40 g and 80 g starch (n = 19)

From: Effect of AMY1 copy number variation and various doses of starch intake on glucose homeostasis: data from a cross-sectional observational study and a crossover meal study

  Low AMY1 CN (n = 9) High AMY1 CN (n = 10) P value1
Blood glucose, mmol/L    
iAUC 40 g 125.6 (57.1) 229.7 (110.4) 0.02
iAUC 80 g 201.7 (73.8) 275.8 (138.6) 0.17
P value2 0.02 0.02  
Individual differences in iAUC between 40 g and 80 g 76.0 (75.7) 46.1 (54.1) 0.33
Plasma insulin, pmol/L    
iAUC 40 g 12,486 (5685) 22,056 (12,076) 0.05
iAUC 80 g 24,465 (11,235) 33,729 (22,216) 0.07
P value2 0.005 0.02  
Individual differences in iAUC between 40 g and 80 g 11,979 (9246) 11,673 (13,706) 0.28
  1. Values are presented as the mean (SD)
  2. 1P value testing differences between AMY1 groups are determined with unpaired t tests
  3. 2P value testing differences between doses within AMY1 groups are determined with paired t tests
  4. AMY1, salivary α-amylase gene; CN, copy number, iAUC, incremental area under the curve