Table 4.
Association between objective stimulated and unstimulated salivary flow measurements and xerostomia (data are presented as n (total %)).
| Variable | UWS, >0.2 mL/min | UWS, ≤0.2 mL/min | Total | p * |
| SWS, >0.7 mL/min | 150 (55.8) | 34 (12.6) | 184 (68.4) | <0.001 |
| ≤0.7 mL/min | 33 (12.3) | 52 (19.3) | 85 (31.6) | |
| Total | 183 (68.0) | 86 (32.0) | 269 (100.0) | |
| No xerostomia | Xerostomia | Total | p * | |
| UWS, >0.2 mL/min | 129 (61.4) | 12 (5.7) | 141 (67.1) | 0.332 |
| ≤0.2 mL/min | 60 (28.6) | 9 (4.3) | 69 (32.9) | |
| Total | 189 (90.0) | 21 (10.0) | 210 (100.0) | |
| No xerostomia | Xerostomia a | Total | p * | |
| SWS, >0.7 mL/min | 133 (62.7) | 15 (7.1) | 148 (69.8) | 1.000 |
| ≤0.7 mL/min | 57 (26.9) | 7 (3.3) | 64 (30.2) | |
| Total | 190 (89.6) | 22 (10.4) | 212 (100.0) |
UWS; unstimulated whole salivary flow rate, SWS; stimulated whole salivary flow rate. a Values are presented as n (%) of participants that had an XI score above 25. * Chi-square test.