a) |
A single episode with no other major episodes of back pain |
14 |
6.9 |
33 |
7.9 |
47 |
7.6 |
b) |
A few episodes of back pain, with mostly pain-free periods in between |
79 |
39.1 |
172 |
41.0 |
251 |
40.4 |
c) |
Some back pain most of the time, and a few episodes of severe pain |
47 |
23.3 |
102 |
24.3 |
149 |
24.0 |
d) |
Pain that goes up and down all the time, with episodes of severe back pain |
28 |
13.9 |
69 |
16.4 |
97 |
15.6 |
e) |
Severe back pain all or nearly all of the time |
8 |
4.0 |
15 |
3.6 |
23 |
3.7 |
f) |
Back pain that has got gradually worse |
12 |
5.9 |
17 |
4.0 |
29 |
4.7 |
g) |
Back pain that has improved gradually |
14 |
6.9 |
12 |
2.9 |
26 |
4.2 |
|
Total |
202 |
|
420 |
|
622 |
|