Table 4

Summary of pancreatic cancer models showing degree of smoothing and global test statistic

Analysis

Latency (yrs)

Span^a

Cases/Controls^c

Deviance p-value^d

Figure #

Crude

All Residences

0

0.75

49/1005

0.04

--

Crude

All Residences

0

0.40^b

49/1005

-----^e

5a

Adjusted

All Residences

0

0.40

49/1005

0.02

5b

Span is the percentage of data used for smoothing the model.

^a Optimal span obtained by using the Akaike's Information Criterion (AIC) unless otherwise noted.

^b Same span as for adjusted, all residences.

^c Number of residences contributed to the analysis by participant status.

^d Null hypothesis is that the map is flat.

^e The p-values were omitted because the maps were created using a non-optimal span.

Vieira et al. Environmental Health 2009 8:3   doi:10.1186/1476-069X-8-3