Comparison of baseline and follow-up PROM scores
| PROM | Number with complete data | Baseline (Q1) Mean (SE, 95% CI) | Follow-up (QF) Mean (SE, 95% CI) | Change (95% CI, p values) |
| GIQLI | 158 | 93.3 (2.55, 88.3 to 98.4) | 97.9 (1.77, 94.4 to 101.4) | +4.6 (0.37 to 8.83, 0.048) |
| GIQLI symptom | 168 | 52.0 (1.18, 49.6 to 54.2) | 59.5 (0.76, 58.0 to 61.0) | +7.5 (5.68 to 9.32, <0.0001) |
| GIQLI emotion | 177 | 12.0 (0.45, 11.12 to 12.9) | 12.3 (0.35, 11.6 to 13.0) | +0.3 (–0.43 to 1.04, 0.37) |
| GIQLI physical | 176 | 14.0 (0.61, 12.8 to 15.2) | 13.3 (0.46, 12.4 to 14.2) | −0.7 (–1.68 to 0.28, 0.18) |
| GIQLI social | 174 | 11.0 (0.34, 10.4 to 11.7) | 9.8 (0.29, 9.27 to 10.4) | −1.2 (–1.82 to –0.58, 0.0006) |
| EQ-5D index | 175 | 0.58 (0.03, 0.52 to 0.64) | 0.64 (0.03, 0.59 to 0.69) | +0.06 (0.00 to 0.12, 0.06) |
GIQLI, Gastrointestinal Quality of Life Index; PROM, patient-reported outcome measure; QF, follow-up questionnaire.