Results of the regression modeling: estimated HAQ-DI coefficient.
| Analyses | Estimated HAQ-DI Coefficient from Regression of Costs in HAQ-DI (£/unit) | ||
|---|---|---|---|
| Estimate (SE)* | 95% CI | p | |
| Primary analysis | |||
| Tests | £21.45 (£14) | −7 to 48 | 0.121 |
| A&E visit | £15.67 (£6) | 7 to 29 | 0.001 |
| Primary care consultation | £69.98 (£25) | 21 to 117 | 0.007 |
| Secondary care consultation | £278.14 (£50) | 185 to 381 | < 0.001 |
| Medications | £58.07 (£447) | −788 to 966 | 0.903 |
| Admitted care | £162.25 (£200) | −131 to 716 | 0.437 |
| Total costs (w/o meds) | £547.49 (£224) | 197 to 1120 | 0.006 |
| Sensitivity analyses for total costs (excluding medication cost) | |||
| Disease duration, yrs | |||
| 0 to < 5 (n = 6) | £−76.97 (£499) | −1335 to 779 | 0.852 |
| 5 to < 10 (n = 12) | £390.47 (£834) | −275 to 4118 | 0.656 |
| ≥ 10 (n = 63) | £626.50 (£264) | 212 to 1298 | 0.008 |
| HAQ-DI | |||
| 0 to < 1 (n = 58) | £981.68 (£572) | −15 to 2263 | 0.066 |
| 1 to < 2 (n = 33) | £116.88 (£904) | −2066 to 1615 | 0.849 |
| ≥ 2 (n = 10) | £3340.13 (£3693) | 883 to 15,303 | 0.051 |
| Sex | |||
| Female (n = 58) | £480.3 (£377) | −123 to 1407 | 0.208 |
| Male (n = 43) | £520.92 (£264) | 148 to 1273 | 0.014 |
↵* Bootstrapped SE. A&E: accident and emergency department; HAQ-DI: Health Assessment Questionnaire–Disability Index; SE: standard error.