Volume 15, Number 3—March 2009
Dispatch
Sudden Increases in Listeriosis Rates in England and Wales, 2001 and 2003
Benjamin J. Cairns
and Robert J.H. Payne
and Robert J.H. Payne
Table 1
Coefficient names and descriptions for the best-fit negative binomial generalized linear model of listeriosis incidence
| Variable | Coefficient description |
|---|---|
| (Intercept) | Log of overall monthly no. cases in March 2001 |
| GEAPR01 | Change in log cases (April 2001) |
| GEMAR03 | Change in log cases (March 2003) |
| MEANTEMP | Log cases/°C 30-year mean temperature of the current month |
| MEANTEMP1 | Log cases/°C 30-year mean temperature of the previous month |
| MONTHNUM | Overall linear trend of log cases/month |
| ANOMALY1 | Overall log cases/°C previous month’s temperature anomaly |
| ANOMALY1×GEAPR01 | Change in log cases/°C previous month's temperature anomaly from April 2001 |
| θ (theta) | Negative binomial response distribution size parameter |
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