Table 2.
Mean (SD) of single-item and subscale assessments.
| Assessment | Single-Item Score (x Number of Subscale Items) | Subscale Score (Sum of Subscale Items) | DIFF Score (SDDIFF) | 95% Limits of Agreement Interval | % of DIFF scores outside the 95% Limits of Agreement interval | Agreement between Methods |
|---|---|---|---|---|---|---|
| IBS—constipation | 1.9 (3.2) | 3.3 (3.0) | 1.5 (1.8) | −2.1, 5.0 | 1.5 % | Yes |
| IBS—diarrhea | 4.5 (5.0) | 4.1 (3.1) | −0.5 (3.3) | −6.9, 6.0 | 4.9 % | Yes |
| IBS—pain | 4.0 (3.8) | 3.4 (2.8) | −0.6 (1.9) | −4.3, 3.3 | 3.1 % | Yes |
| POMS-SF Anger | 0.9 (3.4) | 2.4 (3.5) | 1.4 (2.7) | −3.9, 6.7 | 5.1 % | No |
| POMS-SF Depression | 3.7 (6.9) | 3.5 (5.3) | −0.1 (3.5) | −7.0, 6.7 | 4.8 % | Yes |
| POMS-SF Tension | 6.1 (6.5) | 4.2 (4.5) | −1.9 (3.7) | −9.1, 5.4 | 4.1 % | Yes |
| POMS-SF Fatigue | 10.7 (7.3) | 5.3 (5.0) | −5.4 (4.4) | −14.0, 3.2 | 3.9 % | Yes |
| POMS-SF Vigor | 9.2 (5.6) | 9.1 (4.4) | −0.1 (3.0) | −6.0, 5.8 | 3.3 % | Yes |
| DASS-21 Anxiety | 4.5 (9.1) | 7.5 (7.6) | 3.1 (6.0) | −9.9, 15.1 | 4.8 % | Yes |
| DASS-21 Depression | 9.1 (11.1) | 5.7 (6.9) | −3.4 (6.7) | −16.5, 9.7 | 4.4 % | Yes |
| DASS-21 Stress | 12.3 (12.3) | 9.8 (7.8) | −2.5 (8.1) | −18.7, 13.7 | 4.7 % | Yes |
| Mental resilience 1 | 20.6 (5.7) | 19.6 (4.4) | −1.0 (3.4) | −7.7, 5.6 | 4.9 % | Yes |
Sum (SD) scores of the subscales and single-items are presented. 1 = a comparison was made with the full-scale score. The SLEEP-50 insomnia scale was omitted from the table as the scale has no subscales for sleep initiation and sleep maintenance problems.