64 Chapter 3 Table 7: Correlations between the perceived oral dryness in eight different intra-oral regions and the total XI-scores for the six different patient groups. The Spearman’s rho correlation coefficient is shown with the Bias-corrected accelerated (BCa) 95% confidence interval. Patient groups Upper lip Anterior palate Posterior palate Inside cheeks Lower lip Anterior tongue Posterior tongue Floor mouth XI total for controls 0.57 (0.43-0.69)** 0.66 (0.53-0.77)** 0.66 (0.54-0.75)** 0.54 (0.38-0.68)** 0.51 (0.36-0.64)** 0.61 (0.48-0.71)** 0.61 (0.48-0.70)** 0.49 (0.33-0.63)** XI total for Low Med patients 0.43 (0.25-0.58)** 0.43 (0.29-0.57)** 0.47 (0.29-0.62)** 0.52 (0.36-0.67)** 0.47 (0.30-0.62)** 0.58 (0.46-0.68)** 0.56 (0.42-0.68)** 0.48 (0.30-0.65)** XI total for High Med patients 0.56 (0.39-0.70** 0.64 (0.52-0.75)** 0.62 (0.46-0.75)** 0.61 (0.46-0.73)** 0.51 (0.34-0.66)** 0.52 (0.34-0.67)** 0.59 (0.44-0.72)** 0.56 (0.41-0.70)** XI total for RTX patients NS 0.69 (0.12-0.98)* NS NS NS 0.70 (0.00-1.00)* 0.78 (0.11-1.00)* NS XI total for SS patients NS 0.48 (0.14-0.76)** 0.66 (0.46-0.82)** 0.48 (0.15-0.74)** 0.34 (-0.01-0.62)* 0.68 (0.47-0.83)** 0.58 (0.30-0.79)** 0.56 (0.24-0.81)** XI total for SS + High Med patients 0.59 (0.14-0.88)* NS NS 0.57 (0.04-0.90)* 0.57 (0.07-0.87)* NS NS 0.63 (0.07-0.88)** * indicates that that the correlation is significant at level 0.05. ** indicates that that the correlation is significant at level 0.01. NS = not significant.
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