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Table 3 Household response proportions

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

 

Incentive Group

Non-Incentive Group

Between Group Difference (95% Confidence Interval)

Response Rate

36.1% (n=277)

28.7% (n=272)

7.4% (−0.7%, 15.6%)

Cooperation Rate

44.6% (n=224)

36.6% (n=213)

8.2% (−1.6%, 17.7%)

Less Conservative Cooperation Rate

58.5% (n=224)

52.1% (n=213)

6.4% (−3.4%, 16.1%)

  1. n refers to the denominator. The response rate n is larger due to the inclusion of non-contacts.