62 Chapter 3 Table 6: Perceived oral dryness in four different intra-oral regions of the lower jaw as determined with the Regional Oral Dryness Inventory (RODI) in six different patient groups. Data are presented as median with corresponding interquartile range (IQR) and as a mean with standard deviation (SD.). N indicates the total number of subjects per intra-oral region. Patient groups Lower lip: mean±SD. (N)* Lower lip: median±IQR Anterior tongue: mean±SD. (N)* Anterior tongue: median±IQR Posterior tongue: mean±SD. (N)* Posterior tongue: median±IQR Floor mouth: mean±SD. (N)* Floor mouth: median±IQR Controls (N=136) 2.38±1.27 (N=111) 2.00±1.00-3.00 2.48±1.33 (N=112) 2.50±1.00-4.00 2.57±1.34 (N=113) 3.00±1.00-4.00 2.01±1.20 (N=112) 2.00±1.00-3.00 Low Med patients (N=157) 2.70±1.28 (N=135)a 3.00-1.00-4.00 2.83±1.29 (N=132)a 3.00±2.00-4.00 2.79±1.34 N=134) 3.00±1.00-4.00 2.42±1.31 (N=132)a 2.00±1.00-4.00 High Med patients (N=140) 3.05±1.27 (N=120)a,b 3.00±2.00-4.00 3.25±1.29 (N=118)a,b 3.00±2.75-4.00 3.24±1.30 (N=120)a,b 3.00±2.00-4.00 2.91±1.35 (N=118)a,b 3.00±2.00-4.00 RTX patients (N=10) 3.10±1.10 (N=10) 3.50±2.00-4.00 3.00±1.41 (N=10) 4.00±1.00-4.00 3.10±1.37 (N=10) 3.50±1.75-4.00 2.70±1.16 (N=10) 3.00±1.75-4.00 SS patients (N=46) 3.40±1.03 (N=40)a,b 3.00±3.00-4.00 3.41±1.14 (N=41)a,b 4.00±3.00-4.00 3.43±1.21 (N=42)a,b 4.00±3.00-4.00 3.07±1.27 (N=41)a,b 3.00±2.00-4.00 SS + High Med patients (N=22) 3.53±1.12 (N=19)a,b 4.00±3.00-4.00 3.72±1.02 (N=18)a,b 4.00±3.00-4.00 4.00±0.67 (N=19)a,b,c 4.00±4.00-4.00 3.68±0.95 (N=19)a,b,c,d 4.00±3.00-4.00 * Indicates significant differences between the six patient groups, Kruskal Wallis test p<0.01. Mann-Whitney U test: a p<0.05 vs. controls, b p<0.05 vs. Low Med patients, c p<0.05 vs. High Med patients, d p<0.05 vs. RTX patients, and e p<0.05 vs. SS patients.
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