Table 1.
Demographic characteristics of study participants
| cLBP (N=42) | Acute LBP (N=42) | Healthy Controls (N=20) | ||
|---|---|---|---|---|
|
| ||||
| Race | African American | 27 (64.3%) * | 7 (16.7%) | 6 (30%) |
| Asian | 1 (2.4%)* | 8 (19.0%) | 0 (0%) | |
| White | 11 (26.2%)* | 25 (59.5%) | 13 (65%) | |
| Other | 3 (7.2%)* | 2 (4.8%) | 0 (0%) | |
|
| ||||
| Gender | Female | 22 (52.4%) | 22 (52.4%) | 6 (13%) |
| Male | 20 (47.6%) | 20 (47.6%) | 14 (70%) | |
|
| ||||
| Age | 38.5 (9.6)# | 29.02 (9.8)* | 37 (15.6) | |
|
| ||||
| BMI | 31.01 (1.24) | 27.47 (1.02) | 27.95 (6.20) | |
|
| ||||
| Smoking | Current smoker (N, %) | 25 (59.5%)*# | 8 (19.0%) | 3 (15%) |
|
| ||||
| Prior LBP episodes | Yes (N, %) | 33 (78.6%) | 34 (81.0%) | - |
|
| ||||
| BPI | Average Pain | 5.2 (1.87) # | 3.57 (1.59) | - |
|
| ||||
| Pain Interference | 4.50 (0.35) # | 2.54 (1.73) | - | |
|
| ||||
| McGill Pain questionnaire | VAS | 50.87 (3.99) # | 25.72 (18.22) | - |
Data are presented as mean ± S.D. or percentage. Statistical analysis was carried out with Chi-square or ANOVA
*
p<0.05 v/s healthy controls;
#
p<0.05v/s acute low back pain group; (LBP= low back pain; BMI= body mass index; BPI= Brief Pain Inventory; VAS= Visual Analog Scale)