Key PointsThe mean TOI-14 was 48.22 (SD 10.10).The mean HALT was 45.80 (SD 22.22).There was a significant correlation between the TOI-14 and HALT,r = 0.605, p<0.001.This is the first evidence that patients with poor quality of life due to sore throat also have poor quality of life due to halitosis.It is currently unknown if the HALT score is modified by tonsillectomy.