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Table 2 Demographic characteristics for all respondents among participating households stratified by experimental group

From: The use of incentives in vulnerable populations for a telephone survey: a randomized controlled trial

 

Individual Respondents in Incentive Group n=255 (for education, n=213)

Individual Respondents in Non-Incentive Group n=176 (for education, n=148)

Incentive vs. Non-Incentive Between Group Difference (95% Confidence Interval)

Non-response on income

31.4%

33.0%

−1.6% (−10.6%, 7.4%)

Living at or below the low income cut-off 1

33.7%

22.9%

10.8% (0.5%, 21.2%)

Non-response on education (adults only)

11.3%

7.4%

3.8% (−2.2%, 9.8%)

Not a post-secondary graduate 2

32.8%

40.1%

−7.3% (−17.9%, 3.2%)

Non-response on birthplace

7.1%

4.0%

3.1% (−1.2%, 7.3%)

Born outside Canada 3

46.0%

45.0%

1.0% (−8.8%, 10.8%)

  1. 1 Individuals living at or below the low income cut-off are representative of those of “lower SES”.
  2. 2 Non post-secondary graduates are representative of those of “lower education”.
  3. 3 Individuals born outside Canada are representative of “new Canadians”.
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BMC Research Notes

ISSN: 1756-0500

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