Research Article
Multichart Schemes for Detecting Changes in Disease Incidence
Table 7
ARLs with their SDRL (in bracket) for the CUSUM-EWMA-CUSUM charts with
.
| | Shifts in | | | | Average EWMA-CUSUM | | | | |
| | 1.00 | 201.51 (180.30) | 202.53 (192.35) | 204.21 (203.3) | 202.75 (191.98) | 199.58 (192.24) | | 1.25 | 51.92 (35.82) | 45.44 (37.36) | 51.29 (46.61) | 49.55 (39.93) | 46.76 (38.31) | | 1.50 | 27.19 (14.17) | 20.64 (14.18) | 21.77 (18.01) | 23.20 (15.45) | 21.45 (15.34) | | 1.75 | 18.47 (8.01) | 12.79 (8.96) | 12.67 (8.70) | 14.64 (8.56) | 12.80 (8.03) | | 2.00 | 14.05 (5.34) | 9.17 (6.71) | 8.71 (4.92) | 10.64 (5.66) | 9.18 (5.46) | | 2.25 | 11.39 (3.98) | 7.26 (4.05) | 6.59 (3.89) | 8.41 (3.97) | 7.00 (3.86) | | 2.50 | 9.69 (3.15) | 6.03 (3.08) | 5.41 (2.98) | 7.04 (3.07) | 5.76 (3.10) | | 2.75 | 8.41 (2.63) | 5.15 (2.55) | 4.51 (2.37) | 6.02 (2.52) | 4.84 (2.41) | | 3.00 | 7.48 (2.23) | 4.47 (2.12) | 3.93 (2.06) | 5.29 (2.14) | 4.20 (2.02) | | 3.25 | 6.74 (1.96) | 4.01 (1.77) | 3.51 (1.73) | 4.75 (1.82) | 3.70 (1.68) | | 3.50 | 6.13 (1.75) | 3.59 (1.49) | 3.15 (1.44) | 4.29 (1.56) | 3.35 (1.47) | | ETD | 12.837 | 8.971 | 8.898 | 10.233 | 8.892 | | ETDE | 16.147 | 11.855 | 12.154 | 13.383 | 11.904 |
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