Table 3 Saliva and lacrimal measures
Measure | Group | n | Median (interquartile range) | p a |
|---|---|---|---|---|
Unstimulated salivary flow (ml/min) | Normal | 20 | 5.5 (4.0–9.5) | 0.0009 |
|  | RA | 25 | 3.0 (1.0–5.0) |  |
Stimulated salivary flow, 15 min (ml/min) | Normal | 20 | 8.0 (3.8–10.5) | 0.0005 |
|  | RA | 25 | 4.0 (1.5–4.5) |  |
Basal salivary NOx (μM)b | Normal | 20 | 46.1 (19.5–71.3) | NS |
|  | RA | 25 | 48.8 (31.3–83.4) |  |
Stimulated salivary NOx, 15 min (μM)b | Normal | 20 | 48.1 (26.6–98.7) | NS |
|  | RA | 25 | 37.0 (15.7–81.9) |  |
Schirmer's tear test, left (mm) | Normal | 19 | 14.0 (5.0–30.0) | 0.025 |
|  | RA | 25 | 8.0 (2.0–17.5) |  |
Schirmer's tear test, right (mm) | Normal | 19 | 12.0 (5.0–30.0) | 0.008 |
|  | RA | 25 | 5.0 (1.5–10.0) |  |