Chunk #21 — Methods — Impact of incentives on participation rate and enrolled subjects' characteristics

Source

Environment And Genetics in Lung cancer Etiology (EAGLE) study: an integrative population-based case-control study of lung cancer.

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After study completion, we assessed the impact of the involvement of the family physician in controls' response rate. Controls contacted by their family physician had a much higher participation rate (80.1%) than those (49.3%) not contacted.