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Table 1 The impact of response-enhancement measures on participation rate (Eligible participants = 4452 subjects)

From: Comparison of participants and non-participants to the ORISCAV-LUX population-based study on cardiovascular risk factors in Luxembourg

Response-enhancement measures Number of positive answers Participation rate
First invitation 1072 24.1%
Two reminders 323 7.3%
Repeated phone calls 37 0.8%
Total participants 1432 32.2%