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Table 5 Population and sample difference in deprivation quintiles

From: Increasing questionnaire response: evidence from a nested RCT within a longitudinal birth cohort study

 

Quintile 1 (least deprived)

Quintile 2

Quintile 3

Quintile 4

Quintile 5 (most deprived)

Population

7%

16%

21%

30%

26%

Sample of those consented

8%

17%

22%

29%

24%

Sample of those responding

10%

21%

26%

26%

17%

Difference between responded and population

3%

5%

5%

-4%

-9%