Table 3.
The change in fecal short-chain fatty acids (fSCFAs) after the intervention was expressed as ratios to total SCFAs or raw values.
| V1 PRO (median (IQR)) |
V2 PRO (median (IQR)) |
∆ PRO (median (IQR)) |
V1 PLC (median (IQR)) |
V2 PLC (median (IQR)) |
∆ PLC (median (IQR)) | p ∆ | Difference of median (Δ PRO- Δ PLC) (median [95 % CI]) | Wilcoxon effect size (r) | |
|---|---|---|---|---|---|---|---|---|---|
| Ratio (%) | |||||||||
| Isovaleric acid (C5i) * | 0 (0–1.91) | 0.05 (0–0.65) | 0 (−0.85–0) | 0.14 (0–1.47) | 0 (0–0.82) | 0 (−0.76–0) | .853 | 0 [−0.12; 0] | 0.02 |
| Acetic acid (C2) | 66.4 (60.9–75.4) | 66.0 (62.3–77.2) | −0.91 (−8.92–6.81) | 66.0 (63.9–71.8) | 69.2 (65.3–75.1) | 4.82 (−4.88–8.61) | .240 | −5.73 [−2.6; 5.4] | 0.15 |
| Propionic acid (C3) | 0.47 (0–1.91) | 0.65 (0.2–1.28) | 0 (−0.32–0.31) | 0.77 (0.33–1.49) | 0.61 (0.12–1.34) | −0.02 (−0.71–0.23) | .553 | 0.02 [−0.27; 0.17] | 0.08 |
| Butyric acid (C4n) | 13.4 (9.32–17) | 13.7 (9.81–18.3) | 2.08 (−3.55–8.62) | 12.8 (8.46–16.1) | 12.1 (8.83–15.6) | 1.47 (−4.89–4.25) | .331 | 0.61 [−3.1; 3.3] | 0.13 |
| Isobutyric acid (C4i) | 14.4 (12.5–17.9) | 14.7 (11.5–18.3) | −0.47 (−2.7–2.87) | 16.9 (13.6–21.2) | 16.3 (11.7–18.7) | −0.02 (−5.21–1.82) | .433 | −0.45 [−2.5; 0.62] | 0.1 |
| Valeric acid (C5n) | 0 (0–0.02) | 0 (0–0.57) | 0 (0–0.13) | 0 (0−0) | 0 (0–0.01) | 0 (0; 0) | .412 | 0 [0; 0] | 0.1 |
| Raw values (mM) | |||||||||
| Total | 4.03 (3.38–6.79) | 4.66 (3.01–7.28) | 0.47 (−1.59–2.66) | 4.54 (3.35–6.98) | 4.33 (2.63–6.11) | −0.37 (−2.26–0.82) | .513 | 0.84 [−0.83; 0.82] | 0.09 |
| Isovaleric acid (C5i) | 0 (0–0.1) | 0.003 (0–0.05) | 0 (−0.007–0.04) | 0.01 (0–0.07) | 0 (0–0.05) | 0 (−0.05–0) | .150 | 0 [0; 0] | 0.19 |
| Acetic acid (C2) | 2.9 (2.21–4.73) | 3.27 (1.98–4.41) | 0.33 (−1.1–1.32) | 3 (2.27–4.25) | 2.9 (1.97–4.05) | −0.26 (−1.2–0.82) | .551 | 0.59 [−0.8; 0.69] | 0.08 |
| Propionic acid (C3) | 0.02 (0–0.08) | 0.04 (0.005–0.08) | 0.003 (−0.01–0.05) | 0.04 (0.02–0.08) | 0.03 (0.008–0.06) | −0.0005 (−0.03–0.01) | .088 | 0.0035 [−0.0095; 0.0092] | 0.22 |
| Butyric acid (C4n) | 0.64 (0.27–1.21) | 0.69 (0.27–1.36) | 0.1 (−0.49–0.31) | 0.41 (0.31–0.83) | 0.51 (0.25–0.93) | 0.01 (−0.37–0.25) | .580 | 0.09 [−0.12; 0.19] | 0.07 |
| Isobutyric acid (C4i) | 0.64 (0.49–1.21) | 0.72 (0.39–1.2) | −0.08 (−0.19–0.32) | 0.82 (0.53–1.04) | 0.77 (0.39–1.02) | −0.05 (−0.49–0.17) | .532 | −0.03 [−0.17; 0.12] | 0.08 |
| Valeric acid (C5n) | 0 (0–0.0009) | 0 (0–0.05) | 0 (0–0.01) | 0 (0−0) | 0 (0–0.0008) | 0 (0−0) | .540 | 0 [0; 0] | 0.08 |
Legend: * - primary outcome measure.