Table 1

Response rate for Natsal-3 core and boost samples

AllCore (16–74)Boost 1 (16–34)Boost 2 (16–29)
N%N%N%N%
Sampled addresses59 41210024 92410018 53710015 951100
Known ineligible addresses
 Vacant/derelict31375.316206.58284.56894.3
 Non-residential7101.23101.22031.11971.2
 Not traced/built/other1770.3920.4390.2460.3
 Not eligible age range27 88546.9361314.512 43867.111 83474.2
Total known ineligibles31 90953.7563522.613 50872.912 76680.0
Unknown eligibility
 No contact10561.86982.82061.11521.0
 All information refused25014.220488.22911.61621.0
 Other5861.04181.71060.6620.4
Total unknown eligibility41437.0316412.76033.33762.4
 Estimated ineligible1229525418286
Total estimated eligible addresses26 27410018 76410046111002899100
No interview
 No contact with selected person3271.21901.0861.9511.8
 Refused (including proxy refusal)634324.1466824.9104922.862621.6
 Other reason15285.810435.63036.61826.3
 No information about address291411.1263914.11854.0903.1
Total unproductive11 11242.3854045.5162335.294932.7
Completed interviews15 16257.710 22454.5298864.8195067.3