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Table 1 Subject characteristics and values for food and yeast antibodies in subjects with and without IBS

From: IgG and IgG4 antibodies in subjects with irritable bowel syndrome: a case control study in the general population

Subject characteristics and food groups IBS Non-IBS p
n = 269 n = 277
Female, % (0.0) 67.7 68.2 0.89
Age, years (0.0) 43.9 (10.1) 43.5 (10.0) 0.57
BMI, kg/m2 (0.2) 26.9 (4.6) 26.6 (4.2) 0.70
Education, years (0.4) 12.0 (3.5) 12.9 (3.3) 0.024
Number of diseases (0–9) (7.5) 0.8 (1.1) 0.5 (0.9) < 0.001
HSCL101 (1–4) (6.4) 1.6 (0.6) 1.3 (0.4) < 0.001
Allergic rhinitis, % (4.0) 21.4 10.3 < 0.001
Musculoskeletal complaints (0–12) (34.6) 3.5 (3.0) 2.0 (2.2) < 0.001
Physical activity, hours/day (10.6) 2.8 (1.7) 3.0 (1.7) 0.11
Smoking, % (1.3) 34.7 35.4 0.87
IgG antibodies FP52 (0.0) 35.7 (35.1) 38.8 (37.0) 0.12
IgG antibodies FP733 (0.0) 6.5 (4.6) 6.8 (5.9) 0.46
IgG antibodies against milk, mg/L (0.0) 13.0 (13.9) 16.1 (22.9) 0.046
IgG antibodies against egg, mg/L (0.0) 31.8 (37.3) 33.3 (36.4) 0.47
IgG antibodies against wheat, mg/L (0.0) 11.5 (10.9) 13.5 (15.8) 0.039
IgG antibodies against pork, mg/L (0.0) 4.2 (2.2) 4.2 (1.9) 0.60
IgG antibodies against beef, mg/L (0.0) 6.3 (1.6) 6.5 (1.6) 0.24
IgG antibodies against chicken, mg/L (0.0) 5.7 (3.8) 6.2 (5.1) 0.091
IgG antibodies against cod, mg/L (0.0) 4.1 (2.8) 4.0 (2.1) 0.55
IgG antibodies against brewers’ yeast, mg/L (0.0) 9.0 (7.3) 8.5 (6.0) 0.40
IgG antibodies against Candida albicans, mg/L (0.0) 66.8 (56.1) 55.5 (46.8) 0.057
IgG4 antibodies against milk, mg/L (0.0) 7.9 (13.0) 8.6 (12.9) 0.13
IgG4 antibodies against egg, mg/L (0.0) 12.8 (16.9) 14.4 (17.7) 0.31
IgG4 antibodies against wheat, mg/L (0.0) 1.3 (3.0) 1.8 (5.2) 0.13
IgG4 antibodies against Candida albicans, mg/L (0.0) 0.3 (0.4) 0.3 (0.3) 0.62
Fruits and berries, g/day (1.3) 86.6 (76.1) 94.5 (78.9) 0.17
Vegetables, g/day (1.5) 146.9 (118.2) 142.2 (107.1) 0.74
Potatoes, g/day (1.1) 118.6 (78.4) 124.7 (79.8) 0.41
Dairy products, portions/day (12.8) 2.0 (1.5) 2.5 (1.4) < 0.001
Water, 100 ml/day (1.1) 3.8 (1.9) 3.8 (1.8) 0.78
Carbonated beverages, 100 ml/day (0.0) 2.0 (2.3) 1.5 (1.7) 0.015
Coffee, 100 ml/day (0.4) 4.1 (3.2) 4.6 (3.6) 0.18
Tea, 100 ml/day (0.2) 1.6 (2.6) 1.2 (1.9) 0.22
Juice, 100 ml/day (3.7) 1.0 (1.3) 0.8 (0.9) 0.30
Alcohol, units/day (2.7) 0.24 (0.58) 0.20 (0.29) 0.60
Omega 3 fatty acids, g/day (4.5) 0.7 (0.6) 0.8 (0.7) 0.047
Sugar4, g/day (15.0) 30.6 (24.6) 25.5 (16.5) 0.13
  1. 1Hopkins Symptom Checklist 10 for mood disorder measurement.
  2. 2food panel with the following allergens: milk, egg, cod, wheat, soybean and peanut.
  3. 3food panel with the following meat allergens: chicken, beef, pork and lamb.
  4. 4estimated and calculated from the intake of fruits and berries, juice and carbonated beverages with sugar.
  5. From original data obtained using the Mann–Whitney U test/Chi-square test. The ranges for ordinal variables, and the percentage missing, are given in parentheses. Values are mean (SD) unless otherwise.
  6. stated.