Association of two geriatric treatment systems on care home admission and mortality in patients with hip fracture

BMC Geriatrics

Table 4 Associations of the combination of rates per hospital of ‘acute geriatric care’ (AGC) and ‘transfers to subacute geriatric rehabilitation’ (TSR) on care home admission and death in patients with hip fracture aged 80 years and older

Care home admission n (%) IR (95% CI)^c		Rate of transfers to subacute rehabilitation (TSR)^b
Care home admission n (%) IR (95% CI)^c		Low	Medium	High
Rate of acute geriatric care (AGC)^a	None	^d	496 (20.2) 1.02 (0.92–1.12)	492 (18.9) 1.00 (0.90–1.10)
	Medium	419 (23.3) 1.14 (1.03–1.27)	724 (20.4) 1.00 (reference)	1002 (20.0) 1.04 (0.95–1.13)
	High	1089 (22.4) 1.11 (1.02–1.21)	324 (19.6) 0.99 (0.88–1.11)	231 (22.8) 1.20 (1.06–1.37)
Death n (%) IR (95% CI)^c		Rate of transfers to subacute rehabilitation (TSR) ^b
Death n (%) IR (95% CI)^c		Low	Medium	High
Rate of acute geriatric care (AGC)^a	None	^d	557 (22.7) 1.13 (1.03–1.24)	490 (18.9) 1.00 (0.91–1.11)
	Medium	400 (22.2) 1.11 (1.00–1.23)	719 (20.2) 1.00 (reference)	894 (17.9) 0.93 (0.86–1.02)
	High	858 (17.7) 0.91 (0.83–0.99)	295 (17.8) 0.91 (0.80–1.02)	172 (16.9) 0.93 (0.80–1.07)

^aRate of acute geriatric care (OPS 8–550): None: 0%; Medium: > 0 to ≤ 48.8%; High: > 48.8%
^bRate of transfer to subacute rehabilitation: Low: < 18.6%; Medium: 18.6–43.6%; High: > 43.6%
^cIR Incidence ratio accounting for clustering of patients within hospital by multi-level modelling; Adjusted for age, sex, care need the day before the fracture, number of hip fracture patients/hospital/year, days from hospital admission to surgery, and medication-based co-morbidity score. CI Confidence interval
^dThe combination ‘none inpatient rehabilitation – low transfers to subacute rehabilitation’ was excluded from the analysis due to the low number of hip fracture patients

ISSN: 1471-2318