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Table 3 Predictors of fall-related hospitalisations within 365 days of entry into permanent residential aged carea

From: The risk of fall-related hospitalisations at entry into permanent residential aged care

Variables sHR 95%CI P-value
Time trend, years 1.07 1.05–1.09 < 0.001
Age (per 1 year increment) 1.02 1.02–1.03 < 0.001
Men vs Women 1.00 0.94–1.08 0.900
Facility Remoteness
 Inner Regional vs Major Cities 0.80 0.72–0.91 < 0.001
 Outer Regional vs Major Cities 0.93 0.80–1.07 0.300
 Remote or Very Remote vs Major Cities 0.91 0.61–1.35 0.640
History of Fractures (yes vs no) 1.28 1.15–1.41 < 0.001
History of Falls (yes vs no) 1.30 1.20–1.42 < 0.001
Dementia (yes vs no) 1.36 1.24–1.50 < 0.001
Osteoporosis (yes vs no) 1.13 1.03–1.25 0.013
Normalised Weighted ROSA Frailty Index Category
 [0.2–0.4) vs [0–0.2) 0.79 0.65–0.96 0.019
 [0.4–0.6) vs [0–0.2) 0.76 0.62–0.93 0.007
 [0.6–0.8) vs [0–0.2) 0.71 0.57–0.89 0.003
 [0.8–1.0] vs [0–0.2) 0.47 ND 0.870
Rx-Risk-V Co-morbidity Category
 2–3 vs 0–1 0.99 0.84–1.17 0.900
 4–5 vs 0–1 1.11 0.94–1.30 0.210
 6–8 vs 0–1 1.07 0.90–1.28 0.440
 9+ vs 0–1 1.14 0.95–1.37 0.170
Vitamin K Antagonists (ATC Code B01AA) (yes vs no) 1.30 1.17–1.45 < 0.001
SSRI (ATC Code N06AB) (yes vs no) 1.15 1.04–1.27 0.007
Activities of Daily Living Level
 No or minimal vs Severe impairment 1.01 0.56–1.83 0.970
 Mild vs Severe impairment 0.99 0.80–1.22 0.930
 Moderate vs Severe impairment 1.02 0.88–1.18 0.810
Behavioural Daily Living Level
 No or minimal vs Severe impairment 0.93 0.78–1.11 0.440
 Mild vs Severe impairment 0.89 0.78–1.00 0.059
 Moderate vs Severe impairment 0.92 0.84–1.01 0.077
Complex Health Care (CHC) Needs Level
 No vs ≥10 CHC procedures needed 1.02 0.87–1.20 0.820
 1–4 vs ≥10 CHC procedures needed 1.07 0.97–1.18 0.150
 5–9 vs ≥10 CHC procedures needed 1.11 1.01–1.22 0.026
Nutrition Rating
 A best vs D worst 1.57 1.27–1.94 < 0.001
 B vs D worst 1.46 1.22–1.74 < 0.001
 C vs D worst 1.59 1.40–1.81 < 0.001
Mobility Rating
 A best vs D worst 0.74 0.53–1.04 0.088
 B vs D worst 0.92 0.74–1.14 0.450
 C vs D worst 0.99 0.85–1.15 0.880
Cognitive Rating
 A best vs D worst 0.63 0.53–0.75 < 0.001
 B vs D worst 0.78 0.69–0.88 < 0.001
 C vs D worst 0.80 0.71–0.89 < 0.001
Wandering Rating
 A best vs D worst 0.88 0.78–1.00 0.053
 B vs D worst 1.09 0.93–1.26 0.290
 C vs D worst 1.04 0.87–1.23 0.690
Depression and Dysthymia Rating
 A best vs D worst 0.92 0.81–1.05 0.200
 B vs D worst 0.98 0.86–1.11 0.710
 C vs D worst 1.07 0.94–1.23 0.310
Number of Unplanned Hospitalisations (year prior)
 1 vs 0 1.30 1.10–1.52 0.002
 2–4 vs 0 1.45 1.21–1.75 < 0.001
 5+ vs 0 1.90 1.51–2.39 < 0.001
Number of ED Presentations (year prior)
 1 vs 0 1.07 0.95–1.20 0.270
 2–4 vs 0 1.29 1.13–1.48 < 0.001
 5+ vs 0 1.28 1.06–1.54 0.011
Number of Unplanned Potentially Preventable Hospitalisations (year prior)  
 1 vs 0 0.97 0.87–1.09 0.630
 2–4 vs 0 0.85 0.72–1.02 0.082
 5+ vs 0 0.23 0.02–2.75 0.250
Days Between Last Unplanned Hospitalisation and Entry into PRAC
 0–20 vs 151+ 0.72 0.62–0.84 < 0.001
 21–100 vs 151+ 0.80 0.71–0.90 < 0.001
 101–150 vs 151+ 0.75 0.63–0.90 0.002
Number of GP Attendances (year prior)
 1–5 vs 0 1.59 1.13–2.22 0.007
 6–15 vs 0 1.75 1.25–2.45 0.001
 16+ vs 0 1.99 1.41–2.83 < 0.001
Number of GP Management, Multidisciplinary/Team Care Plans (year prior)
 1 vs 0 1.03 0.91–1.18 0.610
 2–4 vs 0 1.00 0.92–1.09 0.980
 5+ vs 0 1.04 0.81–1.33 0.770
Number of 75+ Health Assessments (year prior)
 1 vs 0 1.08 0.98–1.19 0.130
 2+ vs 0 0.99 0.69–1.43 0.970
  1. sHR Subdistribution hazard ratio, CI Confidence intervals, ROSA Registry of Senior Australians, ATC Anatomical, Therapeutic and Chemical classification codes, GP General practitioners, ED Emergency department, MBS Medicare Benefits Schedule, ND Not defined, confidence interval not defined due to inflated standard error
  2. aN = 30,808 included in models. 1508 (4.7%) of cohort not included due to missing data