Questionnaires
The 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, see figure 1.
There was no evidence of a correlation between TOI-14 and age or BMI. There was no evidence of a difference in the mean TOI-14 between those with or without reflux. There was no evidence of difference in the mean TOI-14 between the three smoking groups. There was some evidence that the TOI14 was higher in females but this did not reach statistical significance at the 5% level – p=0.064. There was no correlation between HALT and age or BMI. There was no difference in the mean HALT between males and females. There was no evidence of a difference in the mean HALT between the three smoking categories. There was no evidence of a difference in the mean HALT between those with and without reflux.