Association between serological markers and gastric emptying variables in 28 patients with primary Sjögren's syndrome. Results are presented as z-scores [median (IQR)].
| Marker | Half time (thalf) Seronegative | Half time (thalf) Seropositive | p | Lag time (tlag) Seronegative | Lag time (tlag) Seropositive | p |
|---|---|---|---|---|---|---|
| RF | –0.75 (−1.24, 0.25) | 1.61 (0.09, 2.86) | 0.02* | –0.44 (−0.91, 1.05) | 2.39 (1.18, 4.22) | 0.02* |
| ANA | –0.99 (−1.56, 0.40) | 1.22 (−0.37, 2.40) | 0.06 | −0.80 (−0.95, −0.02) | 1.81 (−0.01, 3.42) | 0.06 |
| Anti-SSA | 1.65 (−1.36, 2.72) | 1.13 (−0.51, 2.07) | 0.93 | 1.81 (−0.96, 3.11) | 1.40 (−0.11, 3.24) | 0.70 |
| Anti-SSB | 0.03 (−1.03, 1.86) | 1.40 (−0.04, 2.78) | 0.34 | 0.67 (−0.78, 2.78) | 2.38 (0.83, 4.80) | 0.23 |
p values calculated using the Mann-Whitney U test;
↵* p < 0.05. RF: rheumatoid factor; ANA: antinuclear antibodies.