[R-sig-Epi] R-sig-Epi Digest, Vol 41, Issue 1 (David Evans)

[Mirian Carvalho de Souza]

Geleira
Oi David!
I'm using Poisson models.
I studied the help files of Epi package, and I didn't find a solution for 
overdispersion.
I've checked and the data has overdispersion for 1-year classes and for 
5-year classes L.

This is the command I'm using.
masc.fit <- 
apc.fit(A=masc.df$meio,P=masc.df$periodo,D=masc.df$Y,Y=masc.df$POB/10^5,ref.c=1920,ref.p=1982,dist="poisson",model="ns",dr.extr="Holford",parm="ACP")


This is my data structure.
   AGE idade meio       ano PER    Y      POB   tx_masc coorte periodo
1    1 35-39   37 1980-1984   1  400 16968583    23,573   1945    1982
2    1 35-39   37 1985-1989   2  457 20347442    22,460   1950    1987
3    1 35-39   37 1990-1994   3  453 23366339    19,387   1955    1992
4    1 35-39   37 1995-1999   4  515 26528097    19,413   1960    1997
5    1 35-39   37 2000-2004   5  423 30630477    13,810   1965    2002
6    2 40-44   42 1980-1984   1  850 15180168    55,994   1940    1982
7    2 40-44   42 1985-1989   2  940 17494477    53,731   1945    1987
8    2 40-44   42 1990-1994   3  996 19660193    50,661   1950    1992
9    2 40-44   42 1995-1999   4 1172 22532923    52,013   1955    1997
10   2 40-44   42 2000-2004   5 1221 26303422    46,420   1960    2002
11   3 45-49   47 1980-1984   1 1754 12143731   144,437   1935    1982
12   3 45-49   47 1985-1989   2 1824 13733480   132,814   1940    1987
13   3 45-49   47 1990-1994   3 1873 15293895   122,467   1945    1992
14   3 45-49   47 1995-1999   4 2261 18031010   125,395   1950    1997
15   3 45-49   47 2000-2004   5 2538 21664359   117,151   1955    2002
16   4 50-54   52 1980-1984   1 3010 10631742   283,114   1930    1982

Best regards,

Mirian Carvalho