Table 3.
Measure | Citation | Scale information | Time 1 (pre-decision baseline, phase 1) | Time 2 (post-decision, phase 1 or 2a) | Time 2A (post-additional information decision,bphase 2) | Time 3 (short-term follow-up) | Time 4 (long-term follow-up) |
---|---|---|---|---|---|---|---|
Sociodemographic variables | X | ||||||
Health literacy | [32] | 1 item Likert scale |
X | ||||
Personal and family history of genetic testing | 5 items Yes/no |
X | |||||
Knowledge of genomic sequencing | [38] | 19 items True/ false |
X | X | X | ||
Understanding NC NEXUS | 5 items True/false |
X | |||||
General depression and anxiety | [43] | 14 items Likert scales |
X | X | X | ||
Decisional conflict | [44] | 16 items Likert scale |
X | X | |||
Decision regret | [45] | 5 items Likert scale |
X | X | |||
Decision regret for additional informationc | Adapted from [45] | 6 items Likert scale |
X | X | |||
Dyadic decision-making conflict | 9 items Likert scale |
X | X | ||||
Test-related distress | [46] | 17 items Likert scale |
X | X |
aThe time 2 questionnaire is administered in phase 1 for participants who decline NGS-NBS in the decision aid and in phase 2 for those who indicate interest in NGS-NBS in the decision aid by selecting accept or undecided
bThis questionnaire is completed by decision arm participants after they decide to learn all, some, or none of the three categories of additional information
c Relevant to decision arm participants only