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Table 4 Participant characteristics in the meal study (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 value2
AMY1 CN1 4 (2–4) 11 (10–16)  
Salivary α-amylase activity, U/mL 23.0 (7.7–52.7) 107.6 (69.6–155.9) < 0.01
Females, n (%) 5 (56%) 4 (40%) 0.653
Parent born outside Swe/Den, n (%) 1 (11%) 1 (10%) 1.003
Age, years 48.0 (28.6–57.6) 58.4 (37.8–66.7) 0.07
BMI¸ kg/m2 28.0 (21.9–29.9) 26.9 (23.4–28.7) 0.74
Fasting capillary blood glucose, mmol/L 5.35 (5.20–5.55) 5.08 (4.83–5.55) 0.17
Fasting plasma insulin, pmol/L 49.1 (37.7–63.0) 48.3 (37.3–69.5) 0.97
Habitual total bread intake, servings/week4 9.57 (6.45–10.47) 7.45 (5.64–11.04) 0.65
Habitual white bread intake, servings/week4 1.07 (0.63–1.5) 1.07 (0.35–5.5) 0.79
  1. Values are presented as medians (IQRs) unless stated otherwise
  2. 1Values are presented as median (range)
  3. 2P values were determined with the Mann-Whitney U test unless stated otherwise
  4. 3P value is determined with Fisher’s exact test
  5. 4From MOS baseline FFQ, n = 8 for both groups
  6. AMY1, salivary α-amylase gene; CN, copy number; FFQ, food frequency questionnaire; MOS, Malmö Offspring Study