The Values Clarification Exercise is a process that aids patients in clarifying their values and goals to improve alignment of their preferences with their chosen treatment. It was developed according to the International Patient Decision Aid Standards. It includes ten values that were chosen based on feedback from the parent investigators and clinicians. The ten values are: 1) discomfort to the child, 2) time in the hospital, 3) risk that the child will have impairments, 4) need to provide home medical care, 5) chronic medical care/decisions, 6) financial issues, 7) life in adulthood, 8) impact on the family, 9) beliefs about doing everything medically possible, & 10) life expectancy. Each value has a sliding scale where the user can compare 2 treatment options at a time. They are asked which described situation feels better for them and their family.

27 questions assessing the participant's knowledge of treatment options for CHD. Participants not in the intervention arm will also take this survey for comparison. 21 of the questions use a dichotomous response format (either "true / false" or "yes/no"); 5 questions are multiple choice. All questions are answered with full access to the decision aid (if not in standard care arm) since participants are not meant to test recall. "Better" scores will be measured by how many questions that a participant answers correctly.

Measured using the Perinatal Grief Scale which measures grief, coping, and despair following the death of a child. This scale was also adapted for a child who did not die. Answers are on a 5-point Likert scale that ranges from 1=strongly agree to 5=strongly disagree. A higher score would indicate less grief, and would therefore be considered "better".

The BSI is a validated scale of 53 questions that indicate the degree of stress the participant has experienced within the previous seven days. Answers range in a 5 point Likert scale from 0=not at all to 4=extremely. The scale measures stress, so a lower score is better. Scores are obtained for nine primary symptom dimensions and three global indices of distress.

This scale assesses participants' desire to participate in Shared Decision Making. It is an adaptation of the Degner & Sloan's Control Preference Scale. It is a one item question that asks people if they want to make the decision alone, with their clinician, or have their clinician make it. There is no right or wrong answer; it is up to patient preference, so no answer indicates a "better" than another.

Preparation for Decision Making Scale is a validated scale which will assess participants' perspectives of the decision aid's usefulness in preparing them to communicate with their clinicians and for Shared Decision Making. These questions are answered on a Likert scale ranging from 1=not at all to 5=a great deal. A higher score indicates that they are better prepared and, thus, a better outcome.

11 question survey that measures self-efficacy for performing informed decision making (e.g., getting needed information, asking questions, expressing opinions). Answers range in a 5 point Likert scale from 0=not at all confident to 4=extremely confident. Higher scores are better, as they indicate stronger self-efficacy.

A 16-question survey that measures 1) perceptions of uncertainty in choosing options, 2) feelings of having adequate knowledge and clear values, and 3) effective decision making. Answers range on a 5 point Likert scale from 0=strongly agree to 4=strongly disagree. Lower scores are better, as they indicate a stronger knowledge about choice availability.

Decision Regret will be assessed by asking participants to reflect on the decision they made about which treatment option they chose for their child. The measure consists of 5 items assessed on a 5-point Likert scale from "Strongly agree" to "Strongly disagree". There is no right or wrong answer; it is up to patient preference, so no answer indicates a "better" than another.

Treatment Choice will be assessed by asking participants to identify which treatment they chose. Using electronic health records, we will record the child's actual treatment in case of parental change of mind or misreport. A "better" score would be matching the treatment choice declaration with whichever treatment the electronic health record indicates that the patient received.

This scale assesses participants' desire to participate in Shared Decision Making. This scale is an adaptation of the Degner & Sloan's Control Preference Scale. It is a one item question that asks people if they want to make the decision alone, with their clinician, or have their clinician make it. There is no right or wrong answer; it is up to patient preference, so no answer indicates a "better" than another.

This will be assessed with 5 questions. Participants will be asked questions about if they used the decision aid (DA) before their appointment or during their appointment, their likelihood to recommend the DA, the amount of information presented, and if the DA seemed biased. There is no "better" or more correct answer; it is up to the patient's opinion.

2 items measuring the quality of consultation. One is asking the participant to rate their usefulness of consultation on a 7 point Likert scale that ranges from 0=not at all useful to 6=very useful. The second is asking the participant if the clinician encouraged any certain treatment. There is no "better" answer, as these are opinions.

The 12-Item Short Form Health Survey (SF-12) is a validated scale measuring the participant's health that was designed to reduce respondent burden while achieving minimum standards of precision for purposes of group comparisons involving multiple health dimensions. Answers are given on a 5 point Likert scale ranging from 1=excellent to 5=poor for three of the questions (lower scores are better); answers are given in a dichotomous (yes/no) format for four of the questions ("yes" is better); answers are given on a 6 point Likert scale ranging from 1=all of the time to 6=none of the time for three of the questions (lower scores are better); answers are given in a trichotomous format (yes, limited a little; yes, limited a lot; no, not limited at all) for the remaining two questions ("no" is the better answer).

Participants indicate whether they consulted any of 10 sources of health information. Of these 10 sources, 2 ask about personal relationships (i.e., relatives and friends), 3 had their roots in massmedia (i.e., exposure to television/movies, magazines, and books about CHD), and 2 were educational/research-based (i.e., scientific journals/research papers and the internet). The remaining 3 sources included providers, support groups, and other parents who have a child with CHD. Answers are in a 5 point Likert scale ranging from 1=never to 5=a great deal. There is no right or wrong answer; it is up to patient preference, so no answer indicates a "better" than another.

ICCAP is a validated questionnaire developed to assess the impact of giving birth to a child with severe anatomical congenital anomalies on parental quality of life as a result of early stress. There are 32 questions: 4 ask about contact with caregivers, 6 ask about support from social network, 5 ask about partner relationships, 4 ask about the participant's state of mind, and the remaining 13 ask about fear and anxiety. Answers range on a 4 point Likert scale that ranges from 1=strongly disagree to 4=strongly agree, with a "not applicable". With the first three categories (contact with caregivers, social network, and partner relationships), a higher score is a "better" score; the remaining two categories (state of mind and fear/anxiety) are reverse-scored, so a lower score is "better".