Table 3. Two-part models for healthcare activity: Clinical Practice Research Datalink sample of n = 10 528 people aged ≥50 years in two-person households.
| OR for any activity | 95 %LL | 95 %UL | Exp gamma coefficient (in the subset with any activity) | 95 %LL | 95 %UL | Adjusted means across both parts | 95 %LL | 95 %UL | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of primary care visits | ||||||||||
| MLTCs/healthy | Reference | Reference | 9.6 | 9.2 | 9.9 | |||||
| Both MLTCs | 1.31 | 0.67 | 2.56 | 1.09 | 1.03 | 1.15 | 10.5 | 10.1 | 10.8 | |
| Both healthy | 0.09 | 0.06 | 0.14 | 0.49 | 0.47 | 0.52 | 4.3 | 4.2 | 4.5 | |
| Healthy/MLTCs | 0.12 | 0.08 | 0.19 | 0.56 | 0.53 | 0.59 | 5.0 | 4.8 | 5.2 | |
| Primary care costs | ||||||||||
| MLTCs/healthy | Reference | Reference | £247 | £237 | £258 | |||||
| Both MLTCs | 1.31 | 0.67 | 2.56 | 1.13 | 1.07 | 1.19 | £280 | £269 | £290 | |
| Both healthy | 0.09 | 0.06 | 0.14 | 0.52 | 0.49 | 0.55 | £117 | £112 | £123 | |
| Healthy/MLTCs | 0.12 | 0.08 | 0.19 | 0.55 | 0.52 | 0.59 | £128 | £122 | £134 | |
| Outpatient costs | ||||||||||
| MLTCs/healthy | Reference | Reference | £483 | £443 | £523 | |||||
| Both MLTCs | 1.09 | 0.95 | 1.25 | 1.01 | 0.92 | 1.11 | £498 | £468 | £528 | |
| Both healthy | 0.35 | 0.31 | 0.39 | 0.69 | 0.60 | 0.79 | £222 | £194 | £250 | |
| Healthy/MLTCs | 0.41 | 0.37 | 0.47 | 0.68 | 0.58 | 0.79 | £239 | £207 | £271 | |
| Cost of non-elective admissions | ||||||||||
| MLTCs/healthy | Reference | Reference | £294 | £244 | £345 | |||||
| Both MLTCs | 1.19 | 1.02 | 1.39 | 1.04 | 0.87 | 1.24 | £351 | £302 | £401 | |
| Both healthy | 0.40 | 0.33 | 0.49 | 0.84 | 0.66 | 1.08 | £111 | £84 | £139 | |
| Healthy/MLTCs | 0.47 | 0.38 | 0.57 | 0.85 | 0.68 | 1.05 | £128 | £99 | £157 | |
| Cost of elective admissions | ||||||||||
| MLTCs/healthy | Reference | Reference | £599 | £525 | £673 | |||||
| Both MLTCs | 1.16 | 1.03 | 1.31 | 0.89 | 0.79 | 0.99 | £587 | £528 | £645 | |
| Both healthy | 0.50 | 0.43 | 0.57 | 0.72 | 0.63 | 0.82 | £255 | £218 | £292 | |
| Healthy/MLTCs | 0.54 | 0.47 | 0.62 | 0.70 | 0.62 | 0.79 | £266 | £224 | £307 | |
| ED costs | ||||||||||
| MLTCs/healthy | Reference | Reference | £69 | £62 | £76 | |||||
| Both MLTCs | 1.11 | 0.98 | 1.26 | 1.11 | 0.99 | 1.25 | £82 | £74 | £89 | |
| Both healthy | 0.53 | 0.47 | 0.61 | 0.76 | 0.67 | 0.87 | £33 | £29 | £37 | |
| Healthy/MLTCs | 0.56 | 0.49 | 0.64 | 0.73 | 0.65 | 0.81 | £33 | £29 | £36 | |
| Total hospital costs (outpatient + admissions + ED ) | ||||||||||
| MLTCs/healthy | Reference | Reference | £1445 | £1314 | £1576 | |||||
| Both MLTCs | 1.10 | 0.94 | 1.29 | 1.03 | 0.93 | 1.15 | £1525 | £1418 | £1630 | |
| Both healthy | 0.33 | 0.29 | 0.38 | 0.62 | 0.54 | 0.71 | £631 | £558 | £703 | |
| Healthy/MLTCs | 0.38 | 0.34 | 0.44 | 0.45 | 0.39 | 0.52 | £664 | £589 | £739 | |
| Number of days in hospital | ||||||||||
| MLTCs/healthy | Reference | Reference | 0.91 | 0.72 | 1.11 | |||||
| Both MLTCs | 1.08 | 0.94 | 1.24 | 0.89 | 0.70 | 1.12 | 0.86 | 0.73 | 0.99 | |
| Both healthy | 0.36 | 0.30 | 0.43 | 0.83 | 0.61 | 1.12 | 0.31 | 0.23 | 0.40 | |
| Healthy/MLTCs | 0.42 | 0.35 | 0.51 | 0.66 | 0.50 | 0.86 | 0.29 | 0.22 | 0.36 | |
ED = emergency department. Exp = exponentiated. LL = lower limit. MLTC = multiple long-term conditions. OR = odds ratio. UL = upper limit.