Table 1.
Participant baseline characteristics.
| Characteristic |
|
Internet-mediated intervention (n=111) |
Enhanced usual care (n=118) |
| Age (y), mean (SD) |
|
51.2 (12.5) | 51.9 (12.8) |
| Male (%) |
|
89 | 86 |
| Race (%) |
|
|
|
|
|
White | 74 | 86 |
|
|
Black | 13 | 9 |
|
|
Other or prefer not to answer | 14 | 5 |
| Education level (%) |
|
|
|
|
|
High school or less | 29 | 25 |
|
|
Some college | 56 | 59 |
|
|
4 years of college or more | 16 | 16 |
| Married or living with a partner (%) |
|
59 | 68 |
| Employed full-time or part-time (%) |
|
39 | 31 |
| Annual household income (%) |
|
|
|
|
|
<US $10,000 | 18 | 13 |
|
|
US $10,000-$39,999 | 61 | 54 |
|
|
≥ US $40,000 | 21 | 33 |
| Take narcotic medications for back pain (%) | 41 | 49 | |
| General health status, fair or poor (%) | 41 | 43 | |
| Body mass index, mean (SD) |
|
30.6 (5.7) | 31.6 (5.5) |
| RDQ score (0-24)a, mean (SD) | 9.1 (6.0) | 9.8 (5.7) | |
| MOS pain-related functional interference score (0-100)a, mean (SD) | 48.5 (18.6) | 51.8 (16.3) | |
| Level of pain severity, 0-10 scalea, mean (SD) | 6.0 (1.9) | 6.1 (1.6) | |
| Daily step counts, mean (SD) | 4492.9 (2749.9) | 4321.9 (2285.4) | |
| Exercise self-efficacy score, 1-10b, mean (SD) | 6.8 (2.1) | 6.5 (2.3) | |
| Physical activity fear-avoidance behavior scale, 0-28a, mean (SD) | 13.9 (5.9) | 15.1 (6.0) | |
alower scores are better
bhigher scores are better