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Table 3 Incidence rates and ratio

From: Prevention of hip fractures in older adults residing in long-term care facilities with a hip airbag: a retrospective pilot study

  Control Run-in Intervention Effectiveness
   Incidence rate/py (95%CI) Incidence rate ratio (95%CI)
Falls 2.1 (2.0—2.2) 2.0 (1.9–2.1) 1.8 (1.7–1.9)a 0.88 (0.83–0.93)
   Incidence rate/100py (95%CI) Incidence rate ratio (95%CI)
Hip fractures 2.9 (2.1–3.9) 1.5 (0.6–3.1) 1.6 (1.0–2.5) 0.56 (0.34–0.92)
Pelvic fractures 0.4 (0.2–0.9) 0.2 (0.02–1.2) 0.2 (0.03–0.05) 0.46 (0.11–1.92)
Hip + pelvic fractures 3.3 (2.4–4.4) 1.7 (0.8–3.4) 1.8 (1.2–2.7) 0.55 (0.34–0.87)
Other fractures 1.4 (0.9–2.2) 1.2 (0.5–2.7) 0.9 (0.5–1.6) 0.72 (0.37–1.40)
  1. IRR for the Intervention and Run-in study period in comparison to the control period
  2. arestricted up to 01–01-2020, due to availability of fall data until this date