Table 2 Summary of signals generated by EARS C1, C2 and C3 cusum methods.
From: Outbreak detection algorithms for seasonal disease data: a case study using ross river virus disease
Method & parameters | No. signals of specified duration | Details of signals lasting ≥4 wks | |||
|---|---|---|---|---|---|
|  | 1 wk | 2 wks | 3 wks | ≥4 wks |  |
C1 4 wk BL k = 3 | 5 | 6 | 1 | 5 | 1992 (wk 5-11), 1996 (3-12), 2003 (10-20), 2004 (4-14), 2007 (38-45) |
C1 4 wk BL k = 4 | 5 | 4 | 0 | 5 | 1992 (wk 5-9), 1996 (5-9), 2003 (10-18), 2004 (4-7), 2007 (38-43) |
C2 4 wk BL k = 4 | 7 | 5 | 2 | 5 | 1992 (wk 5-13), 1996 (5-14), 2003 (11-25), 2004 (4-17), 2006 (2-7) |
C2 4 wk BL k = 5 | 7 | 1 | 1 | 4 | 1992 (wk 5-12), 1996 (5-13), 2003 (11-23), 2004 (4-15) |
C2 4 wk BL k = 6 | 5 | 2 | 1 | 4 | 1992 (wk 5-11), 1996 (5-12), 2003 (11-21), 2004 (4-8) |
C3 4 wk BL k = 5 | 8 | 1 | 2 | 4 | 1992 (wk 5-12), 1996 (5-12), 2003 (11-15), 2004 (4-15) |
C1 8 wk BL k = 3 | 6 | 3 | 1 | 3 | 1992 (wk 5-13), 1996 (5-14), 2003 (11-19) |
C1 8 wk BL k = 4 | 6 | 0 | 0 | 3 | 1992 (wk 5-10), 1996 (5-11), 2003 (11-15) |
C2 8 wk BL k = 4 | 0 | 4 | 0 | 6 | 1992 (wk 5-15), 1996 (5-18), 2001 (13-16), 2003 (11-21), 2004 (11-14), 2006 (2-8) |
C2 8 wk BL k = 5 | 1 | 4 | 0 | 3 | 1992 (wk 5-13), 1996 (5-16), 2003 (11-18) |
C3 8 wk BL k = 4 | 0 | 4 | 0 | 6 | 1992 (wk 5-15), 1996 (5-18), 2001 (13-16), 2003 (11-21), 2004 (11-14), 2006 (2-8) |
C3 8 wk BL k = 5 | 1 | 4 | 0 | 3 | 1992 (wk 5-13), 1996 (5-16), 2003 (11-18) |