brainNM {DClusterm} R Documentation

## Brain cancer in New Mexico, USA, 1973-1991.

### Description

This data set contains the number of incident brain cancer cases in the 32 counties of New Mexico, USA, and each year of the period 1973-1991, and the location of Los Alamos National Laboratory. In addition, the data set also includes for each county and year information about the expected cases, the Standardized Morbidity Ratio (SMR), the FIPS, ...

File brainNM_clusters contains the results of running DetectClustersModel on a null model ('nm.m0') and another one with covariates ('nm.m1'). The results are in 'nm.cl0' and 'nm.cl1', respectively.

### Usage

data(brainNM)

### Format

brainst: A STFDF object containing the following information for each county and year:

 Observed Number of observed brain cancer cases Expected Number of expected brain cancer cases. Standardisation is done taking the whole time-period and not year-ly to keep any temporal trend. SMR Standardized Morbidity Ratio (observed/expected) Year Year FIPS FIPS Code ID ID (from 1 to 32) IDLANL Inverse distance to Los Alamos National Laboratory IDLANLre Re-scaled Inverse distance to Los Alamos National Laboratory (i.e., IDLANL/mean(IDLANL))

losalamos: A SpatialPoints object which contains the location (in long/lat) of Los Alamos National Laboratory obtained from the Wikipedia: -106.298333, 35.881667.

### Source

Data have been downlodad from the SatScan website. Boundaries have been obtained from the U.S. Census Bureau. Cibola and Valencia counties has been merged together.

### References

SatScan (c). http://www.spatstat.org

Kulldorff, M., W. F. Athas, E. J. Feurer, B. A. Miller, and C. R. Key (1998). Evaluating cluster alarms: a space-time scan statistic and brain cancer in los alamos, new mexico. American Journal of Public Health 88, 1377-1380.

[Package DClusterm version 1.0-1 Index]