Table 1 Changes in patients` characteristics, GI-symptoms and food tolerance from pre- to 6 months post-surgery
N | Pre-surgery | 6 months post-surgery | Change a | P-value | |
|---|---|---|---|---|---|
Age, years | 54 | 45.7 (7.74) | NA | NA | NA |
Gender (male/female), n (%) | 54 | 10 (18.5)/44 (81.5) | NA | NA | NA |
Type of surgery (RYGB/VSG), n (%) | 54 | NA | 43 (79.6)/11 (20.4) | NA | NA |
Weight (kg) | 54 | 120 (110 to 133) | 84.8 (78.1 to 95.1) | −34.3 (− 40.3 to −29.0) | < 0.001* |
BMI, kg/m2 | 54 | 41.6 (3.47) | 29.8 (3.69) | −11.8 (2.84) | < 0.001* |
GSRS-IBS Pain (1–7) | 50 | 1.50 (1.00 to 2.50) | 2.00 (1.00 to 2.50) | 0.00 (0.00 to 1.00) | 0.157 |
GSRS-IBS Satiety (1–7) | 51 | 1.00 (1.00 to 1.50) | 2.50 (1.50 to 3.00) | 1.00 (0.00 to 1.50) | < 0.001* |
GSRS-IBS Bloating (1–7) | 49 | 1.67 (1.00 to 3.00) | 2.00 (1.67 to 3.17) | 0.00 (−0.33 to 1.00) | 0.094 |
GSRS-IBS Constipation (1–7) | 50 | 1.00 (1.00 to 2.00) | 1.00 (1.00 to 2.50) | 0.00 (0.00 to 1.12) | 0.030* |
GSRS-IBS Diarrhea (1–7) | 50 | 1.25 (1.00 to 1.81) | 1.50 (1.00 to 2.25) | 0.12 (−0.25 to 0.56) | 0.192 |
FTS (1–27) | 53 | 24.0 (22.0 to 26.0) | 22.0 (20.0 to 25.0) | −1.00 (−4.50 to 1.00) | 0.006* |
Satisfaction of current eating (1–5) b | 53 | 4.00 (4.00 to 5.00) | 4.00 (4.00 to 5.00) | 0.00 (−1.00 to 1.00) | 0.258 |
Sum score of tolerance to eight individual food items (0–16) c | 54 | 16.0 (14.7 to 16.0) | 14.0 (12.0 to 15.2) | −2.00 (−3.25 to 0.00) | < 0.001* |
Vomiting/Regurgitation/Reflux (0–2–4-6; daily to never) | 54 | 4.00 (4.00 to 6.00) | 6.00 (4.00 to 6.00) | 0.00 (−2.00 to 2.00) | 0.120 |