36 Chapter 2 Table 1 The unstimulated whole saliva (UWS), chewing-stimulated whole saliva (CH-SWS), and acidstimulated whole saliva secretion rates of the study sample. Data are expressed as the median with the corresponding interquartile range (IQR), and mean with standard deviation (SD). Median IQR Mean SD N UWS (mL/min) 0.18 0.08–0.34 0.27 0.33 264 CH-SWS (mL/min) 0.70 0.34–1.18 0.89 0.84 313 A-SWS (mL/min) 1.80 1.05–2.78 2.00 1.23 321 Table 2 Perceived oral dryness in nine different intra-oral regions as determined with the Regional Oral Dryness Inventory (RODI) in patients visiting a saliva clinic. Data are presented as median with corresponding interquartile range (IQR) and mean with standard deviation (SD). Median IQR Mean SD N Upper lip 3.0 2.0–4.0 2.80 1.26 303 Anterior palate 3.0 1.0–4.0 2.82 1.40 302 Inside cheeksa,b 3.0 1.0–4.0 2.68 1.34 302 Posterior palatea,b, c 3.0 2.0–4.0 3.09 1.35 302 Lower lipd 3.0 2.0–4.0 2.70 1.26 299 Floor of the moutha,b,c,d,e 2.0 1.0–4.0 2.54 1.34 297 Posterior tonguea,b,c,e,f 3.0 2.0–4.0 3.03 1.32 297 Anterior tonguea,c,d,e,f 3.0 2.0–4.0 2.94 1.40 297 Pharynxa,b,c,d,e,f 3.0 2.0–4.0 2.96 1.36 297 Wilcoxon signed-rank tests: a p < 0.05 vs upper lip, b p < 0.05 vs anterior palate, c p < 0.05 vs inside cheeks, d p < 0.05 vs posterior palate, e p < 0.05 vs lower lip, f p < 0.05 vs floor of mouth, g p < 0.05 vs posterior tongue, and h p < 0.05 vs anterior tongue
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