Table 2.
GEE analysis of pelvic and thoracic ROM and ratio of thoracic ROM to pelvic ROMa
| Outcome | Group | Group effect (95% CI) | P value | Group by walking speed effect (95% CI) | P value |
|---|---|---|---|---|---|
| Pelvic ROM | HC | 0b | 0 | ||
| NDL | -1.5 (-2.3, -0.7) | < .001 | -2.4 (-3.4, -1.4) | < .001 | |
| DL | -0.6(-1.8, 0.5) | .29 | -3.0 (-4.7, -1.2) | .001 | |
| Thoracic ROM | HC | 0 | 0 | ||
| NDL | 1.0 (0.4, 1.7)† | .002 | -1.0 (-1.7, -0.3)† | .005 | |
| DL | 5.0 (3.5, 6.4) | < .001 | -4.4 (-6.4, -2.4) | < .001 | |
| Ratio | HC | 0 | 0 | ||
| NDL | 0.5 (0.3, 0.7)† | < .001 | -0.0 (-0.2, 0.1)† | 0.64 | |
| DL | 1.0 (0.7, 1.3) | < .001 | -0.5 (-0.9, -0.1) | .007 |
Reference group: healthy control group.
a Adjusted for walking speed, age, body height and body weight.
b Set to zero because HC was used as reference group.
† indicate significant difference between NDL and DL.
Abbreviations: GEE, generalized estimating equation; HC, healthy control group; NDL, patients without a Duchenne limp; DL, patients with a Duchenne limp.
Thoracic and pelvic ROM are expressed in degrees (°).