Try to do the following: 1. Install EpiData Analysis from http://www.epidata.dk 2. Read the data file (copy number one or two) 3. write in the command prompt: describe 4. Look at your results and see if the minimum, maximum etc are as you expect.

If some variable is completely strange - e.g. all with no content then re-run in EpiData Entry the codebook without check mark for that variable.

regards Jens Lauritsen (write to me directly at info (at) epidata.dk if no solution comes up. EpiData Association