Table V.
Proposed cut-off values of radiological JSW in millimeters based on the measurement error (e.g., Bland and Altman method with SDD in knee OA)
| Author | Year | Analysis* | Film† | Bland and Altman method |
|||||
|---|---|---|---|---|---|---|---|---|---|
| N | Mean change | SD change | SDD mm (cut-off) | Limits of agreement |
|||||
| Min | Max | ||||||||
| Ravaud | 1996 | 3 (52) | 1 | 55 | −0.01 | 0.43 | 0.84 | −0.85 | 0.83 |
| 1 | 1 | 55 | 0.2 | 0.33 | 0.64 | −0.44 | 0.84 | ||
| Ravaud | 1998 | 2 | 1 | 36 | −0.03 | 0.32 | 0.62 | −0.65 | 0.59 |
| Mazzucca | 2002 | 2 | 1 | 76 | 0 | 0.3 | 0.6 | −0.6 | 0.6 |
| Buckland-Wright | 2003 | 2 | 1 | 266 | −0.012 | 0.169 | 0.33 | −0.342 | 0.318 |
| Vignon | 2003 | 1 | 2 | 36 | 0 | 0.25 | 0.5 | −0.5 | 0.5 |
| Conrozier | 2004 | 1 | 1 (semi-auto) | 127 | 0.01 | 0.14 | 0.27 | −0.26 | 0.28 |
| 1 | 1 (auto) | 127 | 0.005 | 0.06 | 0.12 | −0.115 | 0.125 | ||
| Lavalley | 2005 | 2 | 3 | 355 | −0.01 | 0.43 | 0.84 | −0.85 | 0.83 |
*
Analysis: 1 = score of a single film in a single patient; 2 = score of two films in a single patient taken less than 2 days a part; 3 = score of the changes in a single patient between two visits and if yes precise () the number of weeks between these two visits.
†
Film: 1 = antero-posterior view; 2 = flexed view; 3 = lateral view.