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Table 4 Costs for the five respondent groups

From: International health policy survey in 11 countries: assessment of non-response bias in the Norwegian sample

   Groups 1-4 postal respondents  
Variable Total respondents (n = 823) 1 Initial respondents (n = 406) 2 First reminder (n = 189) 3 Second reminder (n = 106) 4 Third reminder (n = 70) 5 Telephone respondents (n = 52)
Total costs for each respondent group (€) - 9 655 6 718 5 108 4 362 4 543
Cumulative survey costs (€) - 9 655 16 372 21 479 25 841 30 385
Percentage of survey costs in each respondent group - 31.8 22.1 16.8 14.4 15.0
Costs per response for each respondent group (€) - 23.8 35.5 48.2 62.3 87.4