Figure 2

Yearly RA-SPRT results (OR 2.0) for selected hospitals in which the graph was reset at the beginning of each year. The upper threshold represents the alternate hypothesis (H₁) confirming the odds ratio for the outcome ≥ 2.0, and the lower threshold represents the null hypothesis (H₀) there was not an elevated odds ratio for the outcome ≥ 2.0. Years are calendar years except 2006-2007, which were fiscal years October - September. A) Hospital 4, B) Hospital 8, C) Hospital 9, D) Hospital 6.