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Table 1 Descriptive statistics of the data used for fitting a trend SARerr model of BT spread in France in 2007-2008, based on clinical cases of BTV-8.

From: Estimating front-wave velocity of infectious diseases: a simple, efficient method applied to bluetongue

variable min max average median
X -743.9 168.2 -208.4 -197.8
Y -868.2 26.3 -339.6 -328.5
t 270 715 491 556
  1. X and Y are the geographic coordinates (in km) of the municipality centroids adjusted to the area of BT introduction, t is the number of days to the BT introduction in 2006 (excluding 90 days corresponding to the period from 1 January to 31 March), min and max, are the minimum and maximum values, respectively.