Table 1 Control limits of the standard p-CUSUM chart and the risk-adjusted p-CUSUM control chart
From: Risk-adjusted zero-inflated Poisson CUSUM charts for monitoring influenza surveillance data
Case(a) | Case(b) | Case(c) | ||||
|---|---|---|---|---|---|---|
Standard CUSUM | Risk-adjusted CUSUM | Standard CUSUM | Risk-adjusted CUSUM | Standard CUSUM | Risk-adjusted CUSUM | |
OR = 1.5 | 1.751 | 1.7317 | 2.066 | 1.99 | 1.395 | 1.403 |
OR = 2 | 2.45 | 2.41 | 2.8 | 2.708 | 2.018 | 2.018 |
OR = 4 | 3.44 | 3.352 | 3.79 | 3.65 | 2.984 | 2.94 |