Number of syndesmophytes and/or bridges per time point in the total group, and stratifi ed for the presence or absence of existing syndesmophytes at baseline
| Baseline | 2 year | 4 year | |
|---|---|---|---|
| Total group (n=132) | |||
| Cervical spine | 2.19 (3.68) | 2.64 (3.87) | 3.02 (4.12) |
| Lumbar spine | 2.07 (3.53) | 2.54 (3.84) | 2.89 (4.01) |
| Total spine | 4.26 (6.38) | 5.17 (6.90) | 5.90 (7.26) |
| Absence of baseline syndesmophytes (n=51) | |||
| Cervical spine | 0.00 (0.00) | 0.08 (0.34) | 0.20 (0.75) |
| Lumbar spine | 0.00 (0.00) | 0.04 (0.20) | 0.18 (0.59) |
| Total spine | 0.00 (0.00) | 0.12 (0.38) | 0.37 (1.25) |
| Presence of baseline syndesmophytes (n=81) | |||
| Cervical spine | 3.57 (4.15) | 4.25 (4.20) | 4.79 (4.38) |
| Lumbar spine | 3.37 (4.00) | 4.11 (4.20) | 4.59 (4.29) |
| Total spine | 6.94 (6.91) | 8.36 (7.17) | 9.38 (7.32) |
Mean (SD).