Table 2 Control limits of the standard \(\uplambda\)-CUSUM chart and the risk-adjusted \(\uplambda\)-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 | |
RR = 1.5 | 1.79 | 1.93 | 2.42 | 2.5012 | 1.301 | 1.398 |
RR = 2 | 2.3258 | 2.417 | 2.9821 | 2.925 | 1.7951 | 1.873 |