2016 American College of Rheumatology (ACR) and European Alliance of Associations for Rheumatology (EULAR) classification for primary Sjögren syndrome
| Inclusion criteria | Exclusion criteria | 
|---|---|
At least 1 symptom of ocular or oral dryness, defined as a positive response to at least 1 of the following questions:
 Or suspicion of Sjögren syndrome based on glandular enlargement or the presence of characteristic extraglandular involvement  | Prior diagnosis of any of the following conditions:
  | 
| ACR/EULAR classification criteria for primary Sjögren syndromea | |
| Criteria | Score | 
| ACR/EULAR classification criteria for primary Sjögren syndrome | 3 | 
| Anti-Ro/SS-A positive | 3 | 
| Ocular staining score ≥ 5 (or van Bijsterveld score ≥ 4) in at least 1 eye | 1 | 
| Schirmer test ≤ 5 mm at 5 minutes in at least 1 eye | 1 | 
| Unstimulated whole saliva flow rate ≤ 0.1 mL/minute | 1 | 
↵a The classification of primary Sjögren syndrome applies to any patient who meets the inclusion criteria, does not have any of the conditions listed as exclusion criteria, and has a score ≥ 4.
Adapted from reference 7.