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Table 5 Timing of probable or possible secondary care events to primary care defined upper gastrointestinal bleed events

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

Time difference between defining primary care event and closest probable or possible secondary care event Frequency Percentage Cumulative percentage
Exact match 15,689 51.99 52.99
1 day prior or 1 week post 1,348 4.47 56.46
2 weeks pre or post event 469 1.55 58.01
1 month pre or post event 612 2.03 60.04
2 months pre or post event 573 1.90 61.94
> 2 months or no associated code 11,485 38.06 100.00
Total 30,176 100.00