Quantitative data.

Comfort was based on a 10-point Likert scale [0 = “Not at all” to 10 = “The most comfortable I will ever feel”]). Quality was based on a 5-point Likert scale [0 = “Poor” to 5 = “Excellent”]. The subjective percent of AEs captured was based on a VAS scale ranging from 0% (none) to 100% (all).*Based on data collected from April 2010 to April 2011, the year prior to the study period.