Table 1 Interview-based versus SMS-based mean intensity of LBP measured on a scale from 0 to 10 over a 1 year course (all weeks included)
SMS-based | Interview-based | ||
|---|---|---|---|
None to mild | Moderate to severe | Total | |
0–3 | 35% (8) | 39% (9) | 74% (17) |
4–10 | 13% (3) | 13% (3) | 26% (6) |
Total | 48% (11) | 52% (12) | 100% (23) |