Social class	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
I	Total	100.00
I	Due to a health problem symptom or illness	7.16
I	Due to the primary care physician or specialist advise, but without any health problem	64.25
I	Due to a letter, call or advise received from the health care centre of having this test done	13.24
I	Other reasons	15.35
II	Total	100.00
II	Due to a health problem symptom or illness	7.62
II	Due to the primary care physician or specialist advise, but without any health problem	63.16
II	Due to a letter, call or advise received from the health care centre of having this test done	12.70
II	Other reasons	16.52
III	Total	100.00
III	Due to a health problem symptom or illness	9.00
III	Due to the primary care physician or specialist advise, but without any health problem	62.23
III	Due to a letter, call or advise received from the health care centre of having this test done	13.50
III	Other reasons	15.27
IV	Total	100.00
IV	Due to a health problem symptom or illness	9.72
IV	Due to the primary care physician or specialist advise, but without any health problem	58.62
IV	Due to a letter, call or advise received from the health care centre of having this test done	19.38
IV	Other reasons	12.29
V	Total	100.00
V	Due to a health problem symptom or illness	13.19
V	Due to the primary care physician or specialist advise, but without any health problem	57.93
V	Due to a letter, call or advise received from the health care centre of having this test done	14.92
V	Other reasons	13.95
VI	Total	100.00
VI	Due to a health problem symptom or illness	14.91
VI	Due to the primary care physician or specialist advise, but without any health problem	52.30
VI	Due to a letter, call or advise received from the health care centre of having this test done	15.44
VI	Other reasons	17.34
No data recorded	Total	100.00
No data recorded	Due to a health problem symptom or illness	18.65
No data recorded	Due to the primary care physician or specialist advise, but without any health problem	46.59
No data recorded	Due to a letter, call or advise received from the health care centre of having this test done	19.41
No data recorded	Other reasons	15.36