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Table 2 Associations between the s-IgG and s-IgA milk antibodies and perceived milk intolerance

From: Is perceived intolerance to milk and wheat associated with the corresponding IgG and IgA food antibodies? A cross sectional study in subjects with morbid obesity and gastrointestinal symptoms

 

Perceived milk intolerance

P-value †

Cut-off Ç‚

Perceived milk intolerance (22/70 (31.4))

P-value ‡

 

Yes (n = 22)

No (n = 48)

  

Test positive

Test negative

 

IgG total (μg/ml) (n = 69)

9.77 (2.19)

10.6 (2.08)

0.143

    

IgG cow’s milk (μg/ml)

15.1 (2.40–112)

10.9 (2.40–117)

0.713

≥ 7.5

≥ 20

14/43 (32.6)

9/23 (39.1)

8/27 (29.6)

13/47 (27.7)

0.797b

0.332b

IgG cheese (μg/ml)

5.99 (2.40–72.0)

3.84 (2.40–88.9)

0.755

≥ 7.5

≥ 20

8/23 (34.8)

3/14 (21.4)

14/47 (29.8)

19/56 (33.9)

0.672b

0.524a

IgA casein (U/ml)

5.05 (2.70–65.0)

5.15 (2.10–33.1)

0.556

≥ 8.0

≥ 12

7/25 (28.0)

4/12 (33.3)

15/45 (33.3)

18/58 (31.0)

0.645b

1.000a

  1. †Data are given as mean (SD) or median (min-max) and independent sample t-test or Mann-Whitney-U-test is performed
  2. Ç‚Positive test results as defined by cut-off values recommended by the manufacturer
  3. ‡Data are given as proportion (percent) and X2-statistics is performed
  4. aFisher’s Exact Test
  5. bPearson Chi-Square