Nationality Frequency of mammograms Total Total Total 100.00 Total At least once a year 27.27 Total Every two years 41.75 Total Every three years or more 8.84 Total Never 22.14 Spanish Total 100.00 Spanish At least once a year 27.24 Spanish Every two years 43.17 Spanish Every three years or more 8.72 Spanish Never 20.86 Foreign Total 100.00 Foreign At least once a year 28.38 Foreign Every two years 23.27 Foreign Every three years or more 9.95 Foreign Never 38.40 No data recorded Total 100.00 No data recorded At least once a year 0.00 No data recorded Every two years 64.68 No data recorded Every three years or more 22.33 No data recorded Never 13.00