Volume 9, Number 1—January 2003
Research
Foot and Mouth Disease in Livestock and Reduced Cryptosporidiosis in Humans, England and Wales
William J. Smerdon*, Tom Nichols*, Rachel M. Chalmers†, Hilary Heine*, and Mark Reacher*
Table 4
Rate ratios for weeks 8–39 of each year adjusted for yearly and seasonal effects, England and Wales, 1991–2001
| Yr | Rate ratio | 95% confidence intervals | p value |
|---|---|---|---|
| 1991 |
1.10 |
0.89 to 1.35 |
0.38 |
| 1992 |
0.78 |
0.64 to 0.96 |
0.02 |
| 1993 |
1.27 |
1.03 to 1.57 |
0.02 |
| 1994 |
1.10 |
0.89 to 1.35 |
0.38 |
| 1995 |
0.97 |
0.79 to 1.20 |
0.81 |
| 1996 |
1.02 |
0.83 to 1.26 |
0.82 |
| 1997 |
1.20 |
0.97 to 1.47 |
0.10 |
| 1998 |
1.11 |
0.90 to 1.38 |
0.32 |
| 1999 |
1.07 |
0.87 to 1.31 |
0.55 |
| 2000 |
0.93 |
0.76 to 1.14 |
0.47 |
| 2001 | 0.65 | 0.53 to 0.80 | 0.001 |
