Fig. 1: Survey participation.

RGCS = reproductive genetic carrier screening | ‘New’ increased chance = People newly identified through Mackenzie’s Mission as having an increased chance of having children with a condition screened | ‘Known’ increased chance = people who already knew they had an increased chance of children with an inherited condition prior to taking part in Mackenzie’s Mission and received a low chance for all other conditions screened in the study. aParticipants were not asked any further survey questions as the combined low chance result was no longer relevant for reproductive planning bFor low chance results, 27.4% individual response rate with 45.7% of couples represented. cFor new increased chance results, 33.1% individual response rate with 54.9% of couples represented c For known increased chance results, 20.3% individual response rate with 35.8% of couples represented.