# Table 2 Responses from IVF patients (n= 71) stratified by age of respondent concerning treatment preferences, as a function of various cost breakpoints

Question Mean age (yrs) p 1
In your opinion, which factor is the most important regarding your upcoming fertility treatment?
“Reducing the total number of injections is most important to me” 33.5 0.66
“Reducing out-of-pocket cost is most important to me” 33.5
“If A and B work equally well (i.e., same pregnancy rate) then I wouldn’t care” 33.2
”I would prefer B, but out-of-pocket cost would influence my choice” 34.6
Assuming there was no difference in your out-of-pocket cost for A and B, what would you prefer?
“I would definitely prefer treatment A” 35 0.016
“If both work equally well (i.e., same pregnancy rate) then I
wouldn’t care”
34.2
“I would definitely prefer treatment B” 34.3
“I don’t know” 26.7
If reducing the total number of injections is important to you (Treatment B), and you would be willing to pay some extra for this, how much more would you be willing to pay?
“I would pay up to \$100 more for treatment B” 33.5 0.025
“I would pay \$100-500 more for treatment B” 35.7
Next, assume there is a difference in your ‘out-of-pocket’ cost for these two treatments. Treatment A will cost you about \$260, while Treatment B will cost you about \$650.
What would you do based on this information?

“I would prefer Treatment A based on this difference” 33.5 0.176
“If both work equally well (i.e., same pregnancy rate) then I wouldn’t care” 35.1
“I would prefer Treatment B based on this difference” 36
1. Note: Treatment A = GnRH-agonist, Treatment B = GnRH-antagonist.
2. 1Analysis of variance.