Table 2.
Clinical Characteristics of back and neck pain
| Variables | White (95% C.I.) |
Black (95% C.I.) |
Latino (95% C.I.) |
White- Black Difference (p-value) |
White- Latino Difference (p-value) |
|---|---|---|---|---|---|
| Yrs. of chronic LBP (mean) |
10.5 (9.4 – 11.6) | 7.9 (6.0 – 9.9) | 9.6 (4.1 – 15.1) | 0.03 | 0.78 |
| Yrs. of chronic NP (mean) |
7.6 (6.0 – 9.3) | 5.0 (1.5 – 8.4) | 4.1 (0.8 – 7.3) | 0.21 | 0.07 |
| Pain intensity previous 3 months1(mean) |
6.3 (6.1 – 6.5) | 7.7 (7.5 – 8.0) | 7.9 (7.2 – 8.6) | <0.001 | <0.001 |
| Pain intensity on day of interview1(mean) |
5.2 (4.9 – 5.4) | 5.9 (5.5 – 6.3) | 6.1 (5.2 – 7.1) | 0.003 | 0.05 |
| Bed days past month (mean) |
4.0 (3.3 – 4.7) | 6.0 (4.7 – 7.2) | 5.5 (2.3 – 8.7) | 0.01 | 0.44 |
| Roland-Morris Disability Score (mean) |
14.3 (13.6 – 15.0) |
16.8 (15.9 – 17.4) |
13.2 (10.3 – 16.1) |
<0.001 | 0.37 |
| Neck Disability Index (mean) |
31.0 (28.2 – 33.9) |
38.9 (28.8 – 48.9) |
25.0 (17.0 – 32.9) |
0.15 | 0.14 |
| SF 12 physical functioning score (mean) |
32.5 (31.5 – 33.5) |
31.2 (29.8 – 32.7) |
36.2 (33.0 – 39.3) |
0.20 | 0.02 |
| SF 12 mental health score (mean) |
49.0 (47.9 – 50.0) |
44.8 (42.9 – 46.7) |
48.0 (43.6 – 52.4) |
0.001 | 0.76 |
| Previous spine surgery (%) |
27.0 (23.0 – 31.1) |
19.0 (12.8 – 25.1) |
5.1 (−2.2 12.5) | 0.06 | 0.02 |
| Number of chronic conditions (mean) |
1.7 (1.5 – 1.8) | 2.0 (1.8 – 2.3) | 1.1 (0.6 – 1.6) | 0.04 | 0.19 |
| Radiation of pain into legs/arms (%) |
65.9 (61.7 – 70.0) |
73.3 (66.4 – 80.2) |
61.0 (43.0 – 79.0) |
0.14 | 0.51 |
| Weakness of arms/legs (%) |
51.6 (47.1 – 56.1) |
65.8 (58.4 – 73.2) |
60.2 (41.7 – 78.6) |
0.006 | 0.48 |
1
On 0–10 scale