Longitudinal analysis of symptom-based clustering in patients with primary Sjogren’s syndrome: a prospective cohort study with a 5-year follow-up period

Table 2 Latent status prevalence and item response probabilities

	Class 1	Class 2	Class 3
Latent status prevalence
Baseline	0.1976	0.4318	0.3706
1 year	0.1585	0.3477	0.4938
2 years	0.1255	0.3397	0.5349
3 years	0.1531	0.308	0.5389
4 years	0.1525	0.3047	0.5427
5 years	0.1174	0.2832	0.5995
Item response probabilities (all times)
Pain	0.1817	0.6887	0.2607
Fatigue	0.2839	0.8033	0.2174
Dryness	0.8121	0.5934	0.0748
Anxiety/depression	0.0715	0.486	0.1098

ISSN: 1479-5876