Table 3.
Results of the unpaired t-tests of the unstandardized residuals (corrected SmO2) for area under the curve (AUC) and medians of NIRS measurements of M. longissimus and M. multifidus in chronic nonspecific low back pain subjects (CNSLBP) and asymptomatic controls.
| Variables | Mean CNSLBP patients (SD) | Mean asymptomatic controls (SD) | Significance (P) and 95% CI (LL, UL) |
|---|---|---|---|
|
AUC (SmO2) M. longissimus (∆SmO2 (%) × time (s)) |
− 193.71 (4148.23) | − 276.50 (4361.66) | 0.936 (− 1963.68, 2129.26) |
|
AUC (SmO2) M. multifidus (∆SmO2 (%) × time (s)) |
− 272.18 (3086.92) | − 77.55 (2633.75) | 0.792 (− 1664.68, 1275.43) |
|
Median 1 (SmO2) M. longissimus (%) |
− 2.90 (23.13) | 0.00 (21.98) | 0.591 (− 13.67, 7.85) |
|
Median 1 (SmO2) M. multifidus (%) |
− 2.43 (17.45) | 0.43 (18.17) | 0.531 (− 11.97, 6.23) |
|
Median 2 (SmO2) M. longissimus (%) |
− 2.08 (23.54) | − 0.99 (22.79) | 0.852 (− 12.67, 10.50) |
|
Median 2 (SmO2) M. multifidi (%) |
− 2.05 (17.69) | 0.29 (15.10) | 0.591 (− 11.07, 6.36) |
|
Median 3 (SmO2) M. longissimus (%) |
− 1.74 (24.89) | − 1.75 (23.39) | 0.998 (− 10.95, 10.99) |
|
Median 3 (SmO2) M. multifidi (%) |
− 0.73 (15.47) | − 0.78 (16.87) | 0.990 (− 7.34, 7.44) |
Displayed are the mean, significance and 95% confidence intervals, lower limit (LL) and upper limit (UL).