Table 2. Questionnaire results.

Question 1: Has a doctor ever told you that your heart is not strong enough to support a pregnancy?	• Yes: 100% (50/50) • No: 0% (0/50)
Question 2: Have you ever been on a blood thinner medication called warfarin?	• Yes: 58% (29/50) • No: 42% (21/50)
Question 3: Were you taking a birth control medication (pills or injection) while taking warfarin? (For those who responded yes to Question 2 above)	• Yes: 14% (4/29) • No: 86% (25/29)
Question 4: Did you have a IUD (intrauterine device) in place while taking warfarin? (For those who responded yes to Question 2 above)	• Yes: 7% (2/29) • No: 93% (27/29)
Question 5: Have you ever been pregnant while taking warfarin? (For those who responded yes to Question 2 above)	• Yes: 17% (5/29) • No: 83% (24/29)
Question 6: Did a doctor ever explain to you that not taking a blood thinner (if you have a heart condition that requires that you take a blood thinner) increases the chance of you suffering a life-threatening stroke or blood clot?	• Yes: 58% (29/50) • No: 42% (21/50)
Question 7: Did a doctor ever explain to you that taking a blood thinner increases your risk of significant bleeding during pregnancy?	• Yes: 56% (28/50) • No: 44% (22/50)
Question 8: Did a doctor ever explain to you that taking warfarin increases the chance of birth defects in an unborn child during pregnancy?	• Yes: 53% (26/49) • No: 47% (23/49)
Question 9: Would being on warfarin reduce your desire to have children?	• Yes: 26% (13/50) • No: 74% (37/50)
Question 10: Would having a heart condition that makes pregnancy risky reduce your desire to have children?	• Yes: 38% (19/50) • No: 62% (31/50)
Question 11: How important is it for a woman to be able to have low-risk pregnancy?	• Important: 42% (21/50) • Neutral: 36% (18/50) • Unimportant: 22% (11/50)
Question 12: Do you think that society would look poorly on a woman who cannot have children due to a heart condition?	• Yes: 100% (50/50) • No: 0% (0/50)