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Table 2 CATI response rates

From: Maximising response rates in household telephone surveys

Denominator Response rate (denominator used in calculation)
  Target households1 Control households2 All households3
Number of letters sent 31% (1700) 30% (1726) 30% (3426)
Number of letters sent to estimated eligible households* 34% (1522) 31% (1674) 33% (3196)
Number of households contacted by telephone 37% (1410) 36% (1444) 36% (2854)
Number of eligible households contacted by telephone 41% (1262) 37% (1401) 39% (2663)
  1. 1 523 completed CATI 2 514 completed CATI 3 1037 completed CATI
  2. * = rate of eligibility of households contacted by telephone assumed to be the same for households not contacted by telephone