Table 4.
Results of the unpaired t-test of the unstandardized residuals (corrected SmO2) for area under the curve (AUC) and medians of oxygenation of the M. longissimus and M. multifidus in chronic nonspecific low back pain subjects (CNSLBP) with pain ratings above 2 and asymptomatic controls.
| Variables | Mean CNSLBP patients (pain intensity above 2) | Mean asymptomatic controls | Significance (P) and 95% CI (LL, UL) |
|---|---|---|---|
|
AUC (SmO2) M. longissimus (∆SmO2 (%) × time (s)) |
715.32 (3097.27) | − 1101.59 (4840.35) | 0.194 (− 976.33, 4610.17) |
|
AUC (SmO2) M. multifidus (∆SmO2 (%) × time (s)) |
− 458.23 (2967.43) | − 914.42 (3157.92) | 0.678 (− 1764.52, 2676.91) |
|
Median 1 (SmO2) M. longissimus (%) |
1.11 (17.21) | − 1.47 (25.07) | 0.723 (− 12.51, 17.33) |
|
Median 1 (SmO2) M. multifidus (%) |
− 4.35 (17.86) | − 3.71 (20.49) | 0.926 (− 14.50, 13.22) |
|
Median 2 (SmO2) M. longissimus (%) |
1.14 (19.33) | − 4.15 (24.52) | 0.513 (− 11.02, 21.61) |
|
Median 2 (SmO2) M. multifidi (%) |
− 6.01 (18.99) | − 4.14 (16.55) | 0.783 (− 15.71, 11.97) |
|
Median 3 (SmO2) M. longissimus (%) |
2.95 (17.91) | − 3.87 (25.92) | 0.344 (− 7.61, 21.27) |
|
Median 3 (SmO2) M. multifidi (%) |
− 4.14 (15.57) | − 1.09 (17.67) | 0.575 (− 14.01, 7.90) |
Displayed are the mean, significance (P) and 95% confidence intervals, lower limit (LL) and upper limit (UL).