Social class	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
I	Total	100.00
I	Due to a health problem symptom or illness	11.19
I	Due to the primary care physician or specialist advise, but without any health problem	46.67
I	Due to a letter, call or advise received from the health care centre of having this test done	32.99
I	Other reasons	9.15
II	Total	100.00
II	Due to a health problem symptom or illness	12.10
II	Due to the primary care physician or specialist advise, but without any health problem	44.08
II	Due to a letter, call or advise received from the health care centre of having this test done	34.90
II	Other reasons	8.92
III	Total	100.00
III	Due to a health problem symptom or illness	13.44
III	Due to the primary care physician or specialist advise, but without any health problem	42.13
III	Due to a letter, call or advise received from the health care centre of having this test done	39.14
III	Other reasons	5.29
IV	Total	100.00
IV	Due to a health problem symptom or illness	11.55
IV	Due to the primary care physician or specialist advise, but without any health problem	30.14
IV	Due to a letter, call or advise received from the health care centre of having this test done	53.37
IV	Other reasons	4.94
V	Total	100.00
V	Due to a health problem symptom or illness	14.15
V	Due to the primary care physician or specialist advise, but without any health problem	31.04
V	Due to a letter, call or advise received from the health care centre of having this test done	49.74
V	Other reasons	5.07
VI	Total	100.00
VI	Due to a health problem symptom or illness	16.78
VI	Due to the primary care physician or specialist advise, but without any health problem	29.99
VI	Due to a letter, call or advise received from the health care centre of having this test done	49.30
VI	Other reasons	3.94
No data recorded	Total	100.00
No data recorded	Due to a health problem symptom or illness	11.86
No data recorded	Due to the primary care physician or specialist advise, but without any health problem	29.71
No data recorded	Due to a letter, call or advise received from the health care centre of having this test done	50.84
No data recorded	Other reasons	7.59