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Table 6 Pooled incidence for each case definition per 100,000 person years

From: Defining upper gastrointestinal bleeding from linked primary and secondary care data and the effect on occurrence and 28 day mortality

Pooled case definitions Incidence per 100,000 95% confidence interval
1a & 1b 224 (222–226)
2a & 2b 136 (134–138)
3a & 3b 114 (112–115)
4a & 4b 58 (57–59)
  1. (Pooled between GPRD defined cases and HES defined cases).