The PRO-SF1 survey was developed as a condition-specific outcomes survey for use in clinical trials, physician benchmarking programs, and patient-specific reporting. The five multi-item scales capture key concepts including patient confidence, global impact of asthma/allergic rhinitis symptoms, specific impact of allergic rhinitis symptoms, impact of key asthma symptoms for adults, and impact of key asthma symptoms for children. Also included are five questions about managing asthma/allergies and the status of clinical treatment, five economic impact questions, and eight general demographic questions including length of time with the doctor.
Completion times can vary depending on a complex host of issues such as the setting, context, age, cognitive functioning, language, layout, etc. There are some skip patterns as the Behavior Scales and Change in Health items are not appropriate for infants less than 12 months of age. Response options for both lengths of the ITQOL scales are five levels, with the exception of Parent-Time Limitations which is 4 levels.