Research Article
Multichart Schemes for Detecting Changes in Disease Incidence
Table 6
ARLs with their SDRL (in bracket) for the CUSUM-EWMA-CUSUM charts with
.
| Shifts in | | | | Average EWMA-CUSUM | | | | |
| 1.00 | 500.94 (484.69) | 500.54 (490.24) | 501.17 (495.91) | 500.88 (490.28) | 501.78 (486.69) | 1.25 | 82.02 (61.84) | 70.77 (58.68) | 102.39 (99.86) | 85.06 (73.46) | 76.35 (62.88) | 1.50 | 35.52 (20.29) | 27.66 (18.25) | 36.28 (32.23) | 33.15 (23.59) | 29.13 (19.82) | 1.75 | 22.22 (10.15) | 16.54 (9.14) | 18.06 (14.48) | 18.94 (11.26) | 17.05 (10.40) | 2.00 | 16.54 (6.44) | 11.79 (5.67) | 11.45 (8.25) | 13.26 (6.79) | 11.52 (6.74) | 2.25 | 13.04 (4.67) | 9.28 (4.13) | 8.02 (5.12) | 10.11 (4.64) | 8.67 (5.04) | 2.50 | 10.82 (3.54) | 7.55 (3.25) | 6.30 (3.79) | 8.22 (3.53) | 6.75 (3.78) | 2.75 | 9.44 (2.96) | 6.48 (2.65) | 5.14 (2.79) | 7.02 (2.80) | 5.54 (2.99) | 3.00 | 8.27 (2.48) | 5.65 (2.23) | 4.39 (2.24) | 6.10 (2.32) | 4.71 (2.44) | 3.25 | 7.47 (2.19) | 5.03 (1.90) | 3.89 (1.90) | 5.46 (2.00) | 4.12 (2.10) | 3.50 | 6.76 (1.91) | 4.52 (1.65) | 3.46 (1.61) | 4.91 (1.72) | 3.65 (1.77) | ETD | 16.121 | 12.176 | 13.590 | 13.960 | 11.955 | ETDE | 21.21 | 16.527 | 19.938 | 19.223 | 16.749 |
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