Table 3

Reasons for refusing participation in the study

Rural

Migrant

Urban

Total

Proportion*


n

n

n

n

%


Access to health care


Total

0

46

46

92

32.6%


Have social security insurance

0

26

33

59

20.9%


Have access to medical check-ups if wanted/needed

0

20

13

33

11.7%


Unwillingness to participate


Total

0

43

24

67

23.8%


Distrust (e.g. disclosure of personal details, signature)

0

13

12

25

8.9%


"Do not want to participate" statement

0

11

7

18

6.4%


Did not want blood samples to be taken

0

12

4

16

5.7%


Negativism from relative of selected participant

0

7

1

8

2.8%


Logistical


Total

1

17

32

50

17.7%


Time constraints due to working

0

6

12

18

6.4%


Time constraints, unspecified

0

5

13

18

6.4%


Travelling

0

4

1

5

1.8%


Other**

1

2

6

9

3.2%


Health status


Total

0

16

14

30

10.6%


Recent laboratory test done, no results provided

0

9

5

14

5.0%


Sickness, non-CVD

0

2

5

7

2.5%


Recent laboratory test done, negative for CVD risk factors

0

1

3

4

1.4%


Sickness, unspecified

0

3

0

3

1.1%


Sickness, CVD***

0

1

1

2

0.7%


Notes: Reasons for refusal shown in this table are not mutually exclusive and were aggregated using four categories. The same individual could have answer more than one option.

* This proportion is calculated using the total of responses as numerator and the total of non-responders (n = 282) as denominator

** Other category included the following reasons: 4 religious beliefs or ideologies, 3 fieldwork mistakes with appointments, 1 pregnant, 1 do not live permanently in the area

*** Sickness CVD included 1 case with diagnosed diabetes and 1 case with diagnosed hypercholesterolaemia. In both cases treatment status was not specified.

Miranda et al. BMC Cardiovascular Disorders 2009 9:23   doi:10.1186/1471-2261-9-23

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