| Variable | N | Functional limitation | Psychosocial impact | Pain/discomfort | Speech | Sense of taste | Self-conscious | Tension | Difficult to relax | Embarrassed | Irritable | Occupational | Unsatisfactory life | Unable to function | Painful aching | Uncomfortable eating | Unsatisfactory diet | Interrupt meals |
| Gender | | | | | | | | | | | | | | | | Male | 41 | 5 (5, 5) | 5 (3, 5) | 5 (3, 5) | 5 (5, 5) | 5 (5, 5) | 5 (3, 5) | 5 (4, 5) | 5 (5, 5) | 5 (3, 5) | 5 (5, 5) | 5 (2, 5) | 5 (2, 5) | 5 (2, 5) | 4 (4, 5) | Female | 27 | 5 (5, 5) 0.754 | 5 (2, 5) 0.508 | 3 (3, 5) 0.090 | 5(4.75, 5) 0.886 | 5 (3, 5) 0.056 | 3.5(2.75, 5) 0.090 | 5 (3.75, 5) 0.948 | 5 (5, 5) 0.747 | 5 (3.75, 5) 0.754 | 5 (5, 5) 0.959 | 5 (3, 5) 0.876 | 5 (3, 5) 0.460 | 5 (3, 5) 0.812 | 5 (4, 5) 0.710 |
| Race | | | | | | | | | | | | | | | | White | 33 | 5 (5, 5) | 5 (2.25, 5) | 5 (3, 5) | 5(4.25, 5) | 5 (5, 5) | 5 (3, 5) 03.5 | 5 (5, 5) | 5 (5, 5) | 5 (3.25, 5) | 5 (5, 5) | 5(3, 5) | 4.5 (2, 5) | 5 (2.25, 5) | 5 (4, 5) | Black | 28 | 5 (5, 5) | 5 (2, 5) | 3 (2.75, 5) | 5 (5, 5) | 5 (2.75, 5) | (2, 5) | 5 (3, 5) | 5 (3, 5) | 5 (2.75, 5) | 5 (4, 5) | 5(3, 5) | 5 (2, 5) | 5 (2.75, 5) | 5 (4.75, 5) | Hispanic | 08 | 5 (2, 5) 0.263 | 5 (3, 5) 0.822 | 5 (1, 5) 0.396 | 5 (2, 5) 0.891 | 5 (5, 5) 0.107 | 5(2, 5) 0.143 | 5 (5, 5) 0.106 | 5 (5, 5) 0.190 | 5 (3, 5) 0.812 | 5 (5, 5) 0.018 | 5 (2, 5) 0.865 | 3 (2, 5) 0.788 | 5 (5, 5) 0.500 | 5 (3, 5) 0.797 |
| Age | | | | | | | | | | | | | | | | ≤65 years | 30 | 5 (5, 5) | 5 (5, 2.5) | 5 (3, 5) | 5 (4, 5) | 5 (3, 5) | 5 (3, 5) | 5 (3, 5) | 5 (4.5, 5) | 5 (3, 5) | 5 (5, 5) | 5 (2.5, 5) | 4 (2, 5) | 5 (5, 5) | 5 (3.5, 5) | >65 years | 38 | 5 (5, 5) 0.550 | 5 (5, 5) 0.915 | 5 (3, 5) 0.797 | 5 (5, 5) 0.624 | 5 (5, 5) 0.336 | 5 (3, 5) 0.312 | 5 (5, 5) 0.011 | 5 (5, 5) 0.464 | 5 (4, 5) 0.275 | 5 (5, 5) 0.666 | 5 (3, 5) 0.209 | 5 (2.25, 5) 0.586 | 5 (2.25, 5) 0.376 | 5 (5, 5) 0.484 |
| Teeth | | | | | | | | | | | | | | | | <20 | 27 | 5 (3, 5) | 5 (2, 5) | 3.5 (3, 5) | 5 (3, 5) | 5(2.75, 5) | 3.5(2.75, 5) | 5 (3.75, 5) | 5 (5, 5) | 5 (2, 5) | 5 (3.75, 5) | 5 (3, 5) | 5 (2, 5) | 5 (2, 5) | 5 (2.75, 5) | ≥20 | 42 | 5 (5, 5) 0.024 | 5 (2, 5) 0.755 | 5 (3, 5) 0.463 | 5 (5, 5) 0.059 | 5 (4, 5) 0.516 | 5 (3, 5).174 | 5 (4, 5) 0.911 | 5 (5, 5) 0.832 | 5 (3, 5) 0.404 | 5 (5, 5) 0.028 | 5 (3, 5) 0.437 | 5 (2, 5) 0.779 | 5 (5, 5) 0.306 | 5 (5, 5) 0.058 |
| Dental status | | | | | | | | | | | | | | | | Dentate | 57 | 5 (5, 5) | 5 (2, 5) | 5 (3, 5) | 5 (5, 5) | 5 (4, 5) | 5 (3, 5) | 5 (4, 5) | 5 (5, 5) | 5 (3, 5) | 5 (5, 5) | 5 (3, 5) | 5 (2, 5) | 5 (3, 5) | 5 (4.5, 5) | Edentate | 12 | 5(3.5, 5) 0.398 | 5 (2.5, 5) 0.837 | 4 (2, 5) 0.401 | 5 (4, 5) 0.463 | 5 (3, 5) 0.519 | 4.5 (2.25, 5) 0.475 | 5 (3.5, 5) 0.984 | 5 (5, 5) 0.98 | 5 (3, 5) 0.907 | 5 (3, 5) 0.031 | 5 (3.5, 5) 0.401 | 5 (2, 5) 0.830 | 5 (3.25, 5) 0.759 | 5 (3.25, 5) 0.531 |
| Diabetes | | | | | | | | | | | | | | | | Yes | 36 | 5 (5, 5) | 5 (3, 5) | 4 (3, 5) | 5 (5, 5) | 5 (5, 5) | 5 (3, 5) | 5 (5, 5) | 5 (5, 5) | 5 (4, 5) | 5 (5, 5) | 5 (3, 5) | 5 (2, 5) | 5 (3, 5) | 5 (4, 5) | No | 34 | 5 (5, 5) 0.926 | 5 (2, 5) 0.405 | 5(2.75, 5) 0.715 | 5 (4.5, 5) 0.809 | 5 (2.75, 5) 0.088 | 5 (2.75, 5) 0.920 | 5 (3, 5) 0.160 | 5 (4.5, 5) 0.200 | 5 (2.75, 5) 0.577 | 5 (4.75, 5) 0.176 | 4.5 (2, 5) 0.110 | 5 (2, 5) 0.878 | 5 (2, 5) 0.717 | 5 (3.75, 5) 0.613 |
| CPI | | | | | | | | | | | | | | | | 0 | 8 | 5(3.5, 5) | 3.5(1.25, 5) | 5 (3, 5) | 5(2.25, 5) | 5 (5, 5) | 5 (2.25, 5) | 5 (3.5, 5) | 5 (5, 5) | 5 (2.75, 5) | 5 (5, 5) | 5(2.25, 5) | 5 (3.5, 5) | 5 (2.75, 5) | 5 (3.5, 5) | 1–4 | 50 | 5 (5, 5) 0.357 | 5 (3, 5) 0.288 | 5 (3, 5) 0.554 | 5 (5, 5) 0.222 | 5 (3, 5) 0.413 | 5 (3, 5) 0.949 | 5 (4, 5) 0.930 | 5 (5, 5) 0.775 | 5 (3, 5) 0.134 | 5 (5, 5) 0.936 | 5 (3, 5) 0.970 | 4 (2, 5) 0.176 | 5 (3, 5) 0.899 | 5 (4, 5) 0.930 |
| Saliva pH | | | | | | | | | | | | | | | | Acidic | 21 | 5(4.75, 5) | 5 (2, 5) | 5(2.75, 5) | 5(3.75, 5) | 5 (3, 5) | 5 (2.75, 5) | 5 (3, 5) | 5 (4.75, 5) | 5 (2.75, 5) | 5 (5, 5) | 5 (3, 5) | 4.5 (2, 5) | 5 (2.75, 5) | 5 (4, 5) | Healthy | 41 | 5 (5, 5) 0.245 | 5 (2, 5) 0.918 | 5 (3, 5) 0.833 | 5 (5, 5) 0.405 | 5 (4, 5) 0.762 | 5 (3, 5) 0.913 | 5 (5, 5) 0.530 | 5 (5, 5) 0.727 | 5 (3, 5) 0.581 | 5 (5, 5) 0.990 | 5 (3, 5) 0.987 | 5 (2, 5) 0.590 | 5 (3, 5) 0.857 | 5 (4, 5) 0.599 |
| Years on dialysis | | | | | | | | | | | | | | | | ≤3 years | 41 | 5 (5, 5) | 5 (2.75, 5) | 4 (3, 5) | 5 (4.5, 5) | 5 (4.75, 5) | 5 (3, 5) | 5 (3.75, 5) | 5 (5, 5) | 5 (3, 5) | 5 (5, 5) | 5 (3, 5) | 5 (2, 5) | 5 (2.75, 5) | 5 (4.5, 5) | >3 years | 29 | 5 (5, 5) 0.686 | 5 (2, 5) 0.797 | 5 (3, 5) 0.284 | 5 (5, 5) 0.590 | 5 (3, 5) 0.279 | 5 (2, 5) 0.735 | 5 (4, 5) 0.640 | 5 (5, 5) 0.843 | 5 (4, 5) 0.544 | 5(5, 5) 0.631 | 5 (3, 5) 0.771 | 4 (2, 5) 0.550 | 5 (3, 5) 0.747 | 5 (4, 5) 0.738 |
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