Level of studies	Reason	Total
Total	Total	100.00
Total	Due to a health problem symptom or illness	11.09
Total	Due to the primary care physician or specialist advise, but without any health problem	58.97
Total	Due to a letter, call or advise received from the health care centre of having this test done	15.05
Total	Other reasons	14.89
Cannot read or write, or incomplete primary education	Total	100.00
Cannot read or write, or incomplete primary education	Due to a health problem symptom or illness	19.03
Cannot read or write, or incomplete primary education	Due to the primary care physician or specialist advise, but without any health problem	51.66
Cannot read or write, or incomplete primary education	Due to a letter, call or advise received from the health care centre of having this test done	19.45
Cannot read or write, or incomplete primary education	Other reasons	9.86
Complete primary education	Total	100.00
Complete primary education	Due to a health problem symptom or illness	13.71
Complete primary education	Due to the primary care physician or specialist advise, but without any health problem	56.32
Complete primary education	Due to a letter, call or advise received from the health care centre of having this test done	17.69
Complete primary education	Other reasons	12.29
Secondary education, 1st  stage	Total	100.00
Secondary education, 1st  stage	Due to a health problem symptom or illness	11.54
Secondary education, 1st  stage	Due to the primary care physician or specialist advise, but without any health problem	55.56
Secondary education, 1st  stage	Due to a letter, call or advise received from the health care centre of having this test done	17.92
Secondary education, 1st  stage	Other reasons	14.98
Secondary education, 2nd  stage	Total	100.00
Secondary education, 2nd  stage	Due to a health problem symptom or illness	11.10
Secondary education, 2nd  stage	Due to the primary care physician or specialist advise, but without any health problem	61.65
Secondary education, 2nd  stage	Due to a letter, call or advise received from the health care centre of having this test done	11.73
Secondary education, 2nd  stage	Other reasons	15.53
Advanced professional training or the equivalent	Total	100.00
Advanced professional training or the equivalent	Due to a health problem symptom or illness	11.24
Advanced professional training or the equivalent	Due to the primary care physician or specialist advise, but without any health problem	61.09
Advanced professional training or the equivalent	Due to a letter, call or advise received from the health care centre of having this test done	12.65
Advanced professional training or the equivalent	Other reasons	15.02
University education	Total	100.00
University education	Due to a health problem symptom or illness	5.95
University education	Due to the primary care physician or specialist advise, but without any health problem	64.61
University education	Due to a letter, call or advise received from the health care centre of having this test done	12.26
University education	Other reasons	17.17