Table 3.
Median IRP values and interquartile ranges for different categories of manometric diagnosis stability.
| IRP, mmHg, median (IQR) | Stable normal motility (n=43) | Stable dysmotility diagnosis (n=29) | Variable normal and dysmotility (n=18) | Variable dysmotility diagnosis (n=10) | p-value* |
|---|---|---|---|---|---|
| IRPmin | 4.4 (3.0, 6.6) | 6.8 (4.7, 17.0) | 10.3 (6.7, 13.0) | 10.5 (8.9, 13.4) | <0.0001 ƚ |
| IRPmax | 9.3 (7.7, 11.7) | 12.3 (8.1, 23.0) | 17.9 (16.0, 19.6) | 17.7 (15.7, 19.0) | <0.0001 ƚ |
| Δ IRP | 4.1 (3.0, 5.8) | 5.5 (3.4, 6.1) | 6.7 (5.3, 11.2) | 5.9 (5.2, 7.7) | 0.0013 ƚ |
*
Kruskal-Wallis test (across-group comparison)
ƚ
Dunn’s test post-hoc 2 group comparisons with statistical significance:
IRPmin: stable normal motility vs all other groups (p<0.001)
IRPmax: stable normal motility vs all other groups (p<0.001), stable dysmotility vs normal and dysmotility (p=0.013)
Δ IRP: stable normal motility vs normal and dysmotility (p=0.002), stable dysmotility vs normal and dysmotility (p=0.020)