Table 6.
Intensity ratio and baseline intensity parameter estimates together with associated naive and robust 95% confidence intervals for the model that includes the effects of joint type, previous activity on transitions from state 1 and opposite damage on all transitions
| Parameter | Estimate | 95% confidence interval | |
|---|---|---|---|
| Naive | Robust | ||
| Baseline intensities(×10−2) | |||
| λ012 | 9.24 | (8.19, 10.43) | (6.76, 12.63) |
| λ013 | 0.14 | (0.07, 0.30) | (0.04, 0.49) |
| λ021 | 151.48 | (146.10, 157.10) | (126.25, 181.76) |
| Intensity ratios | |||
| exp(γ) | 21.72 | (11.89, 39.69) | (5.79, 81.46) |
| Metacarpophalangeal on 1→2 | 1.10 | (0.99, 1.21) | (0.82, 1.47) |
| Metacarpophalangeal on 1→3 | 0.37 | (0.16, 0.86) | (0.05, 2.75) |
| Proximal on 1→2 | 1.24 | (1.12, 1.36) | (0.96, 1.59) |
| Proximal on 1→3 | 1.04 | (0.56, 1.94) | (0.31, 3.52) |
| Distal on 1→2 | 0.86 | (0.77, 0.95) | (0.63, 1.16) |
| Distal on 1→3 | 2.82 | (1.60, 4.96) | (0.95, 8.36) |
| Thumb metacarpophalangeal on 1→2 | 1.26 | (1.12, 1.42) | (0.97, 1.63) |
| Thumb metacarpophalangeal on 1→3 | 2.68 | (1.43, 5.04) | (0.88, 8.13) |
| Joint ever active on 1→2 | 2.98 | (2.84, 3.13) | (2.13, 4.17) |
| Joint ever active on 1→3 | 3.07 | (2.38, 3.96) | (1.27, 7.40) |
| Opposite joint damage on 1→2 | 1.20 | (1.01, 1.44) | (0.64, 2.27) |
| Opposite joint damage on 1→3 | 7.19 | (4.90, 10.54) | (2.11, 24.44) |
| Opposite joint damage on 2→1 | 1.08 | (0.91, 1.28) | (0.64, 1.82) |
| Opposite joint damage on 2→3 | 7.50 | (5.08, 11.09) | (2.40, 23.46) |