Ordinal logistic model: odds ratio of a Health Assessment Questionnaire score greater than 0.75 (that is, median) at three years
| Odds ratio (95% CI) | Likelihood χ2 | df | p Value | |
| Carstairs deprivation score3-150 | 1.74 (1.10 to 2.74) | 5.76 | 1 | 0.02 |
| Age group (years): | ||||
| −44 | 1 | |||
| 45 to 54 | 1.71 (1.18 to 2.47) | 10.1 | 3 | 0.02 |
| 55 to 64 | 1.41 (0.98 to 2.02) | |||
| 65+ | 1.68 (1.15 to 2.45) | |||
| Sex: | ||||
| Male | 1 | 24.0 | 1 | <0.001 |
| Female | 2.01 (1.52 to 2.66) | |||
| Centre | – | 9.51 | 8 | 0.30 |
| HAQ score at presentation: | ||||
| Quartile 1 | 1 | |||
| Quartile 2 | 1.61 (1.14 to 2.30) | 121.4 | 3 | <0.001 |
| Quartile 3 | 4.10 (2.83 to 5.95) | |||
| Quartile 4 | 7.66 (5.08–11.6) | |||
↵3-150 Odds ratio corresponding to an increase from the 5th to the 95th centile of the Carstairs score.