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Table 3 Crude incidence rates of upper gastrointestinal bleeding within 120 days of incident bisphosphonate drug prescription

From: The association between serious upper gastrointestinal bleeding and incident bisphosphonate use: a population-based nested cohort study

  ≤ 80 years > 80 years Total
Number of UGIB events 47 70 117
Person-time at risk (y) 5,017 3,604 8,621
Incidence rate a 9.4 19.4 13.6
  1. a Incidence rate (per 1 000 person-years).
  2. UGIB = upper gastrointestinal bleed.