Table 2.

Results of octanoate breath test in 28 patients with primary Sjögren’s syndrome (pSS) and 50 controls. Results are presented as z-scores [median (IQR)] adjusted for age and sex as well as percentage with pathological increased time defined as z-score ≥ 2.

Gastric Emptying Variable	Patients with pSS	Controls	p
Half-time (t_half)	1.18 (−0.71, 2.06)	–0.06 (−0.72, 0.74)	0.03^*
Half-time (t_half) pathological, %	29	2	0.0009^**
Lag-time (t_lag)	1.40 (−0.14, 3.11)	–0.03 (−0.57, 0.66)	0.0008^**
Lag-time (t_lag) pathological, %	43	4	0.00004^**

p values were calculated using the Mann-Whitney U test and Fisher’s exact test, respectively;
↵* p < 0.05,
↵** p < 0.001.