Figure 2

Ease of use and daily injection: prefilled follitropin alfa pen vs existing injection methods. The number and proportion of patients who rated (A) overall ease of use of and (B) daily injection with the prefilled follitropin alfa pen as 'much more easy', 'equal', or 'less easy' than existing injection methods. Exact binomial tests were used to test the null hypotheses that (a) the proportion of patients who rated the use of prefilled pen as much more easy than existing injections methods was equal to the proportion who rated the use as less easy and (b) the proportion of patients who rated the daily injection with the prefilled pen as much more easy than existing injections methods was equal to the proportion who rated the daily injection as less easy. Patients who responded that the pen was equally as easy to use and use daily for injection compared with existing injection methods were omitted from the analyses.