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Table 2 Results for primary and secondary outcomes of healthcare use comparing intervention group and control group from 1 Jan 2018 until 31 Dec 2019

From: Costs and effects of comprehensive geriatric assessment in primary care for older adults with high risk for hospitalisation

Outcomes Group No. of events/No. of participants Event rates Absolute risk-reduction Relative risk-reduction (95% CI)a P value
Total number of hospital care days Intervention 5500/646 8.5 −1.8 −22% (−35% to − 4%) 0.02
Control 6833/662 10.3    
 -No. of hospital care episodes Intervention 922/646 1.4 −0.3 −17% (−30% to −2%) 0.03
Control 1109/662 1.7    
Total Number of visits Intervention 28,325/646 43.8 −0.7 −4% (−15 to 8%) 0.50
Control 29,471/662 44.5    
 -No. of primary care visits Intervention 16,500/646 25.5 0.9 0% (−20 to 26%) 0.99
Control 16,300/662 24.6    
 -No. of emergency room visits Intervention 1512/646 2.3 −0.3 −10% (−23 to 5%) 0.20
Control 1718/662 2.6    
 -No. of other outpatient care visits Intervention 10,315/646 16.0 −1.3 −10% (−25 to 8%) 0.25
Control 11,444/662 17.3    
  1. aRelative risk reductions were analysed with mixed models using primary care centres as random intercept. All models were estimated by a negative binomial distribution with a log link and were adjusted for risk score, age and gender. CI Confidence interval. Significant results are marked with bold text