Article: Validity and reliability of the reflux symptom index (RSI)
- Self-administered nine point outcomes measurement for laryngopharyngeal reflux (LPR)
- Patients treated with twice a day proton-pump inhibitor, evaluated before and 6 months after
- Mean RSI of patients treated with a PPI after 6 months reached that of asymptomatic controls
- RSI> 13 is considered abnormal
- Scale of 0 = no problem 5= severe problem