Variables | # Tested | % Positive | OR | 95% CI | P value | |
---|---|---|---|---|---|---|
All | Â | 33,383 | 4.60 | Â | Â | Â |
Explanatory | Â | Â | Â | Â | Â | |
Year | Â | Â | Â | Â | Â | |
 | 1997 | 1,027 | 5.94 | 1 |  |  |
 | 1998 | 335 | 3.88 | 0.65 | (0.35-1.19) | 0.162 |
 | 2000 | 5,555 | 7.96 | 1.50 | (1.12-2.01) | 0.006 |
 | 2001 | 4,521 | 6.83 | 1.24 | (0.92-1.67) | 0.154 |
 | 2002 | 17,210 | 3.83 | 0.68 | (0.51-0.91) | 0.010 |
 | 2003 | 451 | 8.65 | 1.38 | (0.90-2.12) | 0.141 |
 | 2007 | 1,601 | 0.19 | 0.03 | (0.01-0.10) | <0.001 |
 | 2008 | 2,683 | 0.34 | 0.06 | (0.03-0.11) | <0.001 |
Season | Â | Â | Â | Â | Â | |
 | Long Wet | 18,214 | 4.62 | 1 |  |  |
 | Short Wet | 3,206 | 4.09 | 1.00 | (0.81-1.22) | 0.968 |
 | Long Dry | 4,095 | 4.71 | 1.23 | (1.02-1.49) | 0.034 |
 | Short Dry | 7,868 | 4.70 | 1.14 | (1.00-1.29) | 0.044 |