Table 2.
Intra-and Inter-individual Coefficients of Variation in Colonic Motor and Sensory Testing (COV=coefficient of variation; SD=standard deviation; VAS=visual analog scale; NA=not available)
| Group | All participants, n=72 | Males, n=38 | Females, n=34 | |||
|---|---|---|---|---|---|---|
| Function | Mean± SD | % COV inter/intra |
Mean±SD | % COV inter/intra |
Mean±SD | % COV inter/intra |
| Compliance Pr50, mmHg |
19.7±4.5 | 22.8 / 17.5 | 20.6 ± 4.9 | 23.7 / 17.0 | 18.8 ± 3.9 | 20.8 / 18.2 |
| Fasting 30 min tone§, ml |
113.4±34.9 | 30.8 / 21.5 | 106 ± 31.9 | 30.2 / 19.5 | 122 ± 36.6 | 30.0 / 21.1 |
| PP 30min tone §, ml |
74.5±26.8 | 35.9 /NA | 70.7±23.4 | 33.2/NA | 78.8±29.8 | 37.9/NA |
| Δ30min PP tone§, ml |
−38.9±23.0 | 59.1/ NA | −35.1±20.9 | 59.6 /NA | −43.1±24.7 | 57.3 / NA |
| 1st threshold, mmHg |
15.6±14.4 | 91.9 / 90.2 | 17.1±15.6 | 91.4 / 84.9 | 14.0±12.9 | 92.0 / 98.1 |
| Gas threshold, mmHg |
24.0±17.5 | 72.8 / 75.9 | 24.9±18.5 | 74.1 / 72.7 | 22.9 ±16.5 | 71.7 / 71.9 |
| Pain threshold, mmHg |
42.4±13.2 | 31.0 / 30.6 | 43.6±14.4 | 33.1 / 35.4 | 41.2±11.7 | 28.4 / 27.2 |
| Sensory Ratings Gas (mm VAS) at 36mmHg distension |
53.3±22.3 | 41.9 / 36.6 | 53.8±18.5 | 34.5 / 43.1 | 52.8.±25.9 | 49.1 / 29.1 |
| Sensory Ratings Pain (mm VAS) at 36mmHg distension |
48.6±27.3 | 56.3/ 33.0 | 49.4±27.2 | 55.1 /38.3 | 47.9±28.1 | 58.6 / 27.1 |
§
Post (placebo) data