Level of studies	Reason	Total
Total	Total	100.00
Total	Due to a health problem symptom or illness	13.42
Total	Due to the primary care physician or specialist advise, but without any health problem	35.77
Total	Due to a letter, call or advise received from the health care centre of having this test done	44.98
Total	Other reasons	5.82
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	10.08
Cannot read or write, or incomplete primary education	Due to the primary care physician or specialist advise, but without any health problem	26.86
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	59.67
Cannot read or write, or incomplete primary education	Other reasons	3.39
Complete primary education	Total	100.00
Complete primary education	Due to a health problem symptom or illness	10.11
Complete primary education	Due to the primary care physician or specialist advise, but without any health problem	31.15
Complete primary education	Due to a letter, call or advise received from the health care centre of having this test done	55.10
Complete primary education	Other reasons	3.63
Secondary education, 1st  stage	Total	100.00
Secondary education, 1st  stage	Due to a health problem symptom or illness	13.30
Secondary education, 1st  stage	Due to the primary care physician or specialist advise, but without any health problem	27.79
Secondary education, 1st  stage	Due to a letter, call or advise received from the health care centre of having this test done	53.55
Secondary education, 1st  stage	Other reasons	5.36
Secondary education, 2nd  stage	Total	100.00
Secondary education, 2nd  stage	Due to a health problem symptom or illness	17.31
Secondary education, 2nd  stage	Due to the primary care physician or specialist advise, but without any health problem	44.31
Secondary education, 2nd  stage	Due to a letter, call or advise received from the health care centre of having this test done	31.34
Secondary education, 2nd  stage	Other reasons	7.03
Advanced professional training or the equivalent	Total	100.00
Advanced professional training or the equivalent	Due to a health problem symptom or illness	21.99
Advanced professional training or the equivalent	Due to the primary care physician or specialist advise, but without any health problem	41.50
Advanced professional training or the equivalent	Due to a letter, call or advise received from the health care centre of having this test done	27.92
Advanced professional training or the equivalent	Other reasons	8.59
University education	Total	100.00
University education	Due to a health problem symptom or illness	12.87
University education	Due to the primary care physician or specialist advise, but without any health problem	52.97
University education	Due to a letter, call or advise received from the health care centre of having this test done	25.26
University education	Other reasons	8.90