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Table 1 The effect of the strategies on response rates

From: The effect of an internet option and single-sided printing format to increase the response rate to a population-based study: a randomized controlled trial

Logistic Regression, Model term

Crude OR (95% CI)

No intervention

1.00

Web (main effect)

0.95 (0.80, 1.13)

Single-sided (main effect)

1.01 (0.85, 1.20)

Web + Single-sided (interaction term)

1.24 (0.97, 1.59)