Table 4

Psychometric properties of OHIP-14, correlated with GORD, with and without DE

OHIP-14 subscales characteristicsMean subscale (SD)Statistical tests
With DE (group A) na=66Without DE (group B) nb=121Spearman rank: rs correlation valueMann-Whitney U test (p value)*
Functional limitation3.530 (2.199)2.5702 (1.92712) 0.200* 3065.0 (0.006)*
Physical pain1.182 (1.264)0.7273 (0.96609)0.167* 3260.0 (0.023)*
Psychological discomfort5.167 (1.853)4.0744 (1.98396) 0.297*2625.0 (<0.001)*
Physical disability6.394 (2.745)4.4463 (2.81351) 0.288*2672.0 (<0.001)*
Psychological disability4.591 (1.745)3.5868 (1.94795) 0.271*2754.5 (<0.001)*
Social disability7.106 (2.835)6.1405 (3.42127)0.142 3332.5 (0.053)
Handicap1.682 (1.230)1.2149 (1.31153)0.193* 3099.0 (0.008)*
  • Bold highlight represents important values in each statistical test results.

  • *Correlation is significant at p<0.05 level (two tailed).

  • DE, dental erosions; GORD, gastro-oesophageal reflux disease; OHIP-14, Oral Health Impact Profile-14; rs, ranks correlation coefficient.