Table 2 Intervention components present in DNA and non-DNA risk assessment arms
Intervention component | DNA arm | Non-DNA arm |
|---|---|---|
Mouthwash posted to participant to collect saliva sample for NOD2 Genotyping | √ | X |
Booklet containing results of risk assessment posted approximately 6 weeks after initial contact | √ | √ |
Personal risk presented using a numerical risk with a denominator of 1000, accompanied by a visual display | √ | √ |
Feedback of risk assessment based on family history of CD and smoking Status | √ | √ |
Feedback of risk assessment based on NOD2 genotype | √ | X |
Explanation of NOD2 gene in booklet | √ | X |
Explanation of how stopping smoking reduces the risk of CD in booklet | √ | √ |
Smoking cessation advice over the telephone | √ | √ |