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FP = fractional polynomial.
| Model 1 | FP | Mean (95% CI) |
|---|---|---|
| Mean score | –0.5 | 5.9 (2.6 to 9.1) |
| Standard deviation | 3 | 0.7 (–1.3 to 2.7) |
| Review year | –0.5 | –1.2 (–3.0 to 0.6) |
| Model 2 | FP | Mean (95% CI) |
| Mean score | –0.5 | 5.4 (2.2 to 8.7) |
| Range | –0.5 | –0.1 (–1.0 to 0.8) |
| Review year | –0.5 | –1.2 (–3.0 to 0.6) |
