Table 1

Characteristics of patients tested for Sjögren's syndrome (SS)

Group A (n=33) Group B
(n=25)
Group C
(n=42)
Mean age at time of referral (years)515455
Sex (male/female)3/304/212/40
Xerogenic medication10 (30%)15 (60%)23 (55%)
Chronic fatigue21 (63%)19 (76%)29 (69%)
Salivary gland swelling1-150 17 (51%)7 (28%)8 (19%)
Connective tissue disease0 (0%)RA: 14 (56%)RA: 7 (17%)
SLE: 4 (16%)SLE: 2 (5%)
Scleroderma: 1 (4%)Scleroderma: 1 (2%)
CREST: 1 (4%)
Vasculitis: 1 (4%)
PBC: 1 (4%)
Polymyositis: 1 (4%)
Overlap syndrome: 2 (8%)
Positive salivary gland biopsy32 (97%)24 (96%)0 (0%)
Positive serology
 SSA28 (85%)13 (52%)3 (7%)
 SSB15 (45%)8 (32%)1 (2%)
Positive eye test1-151 25 (76%)17 (68%)18 (43%)
Parotid sialography1-152
 Sialectasia (positive for SS)28 (100%)16 (76%)3 (8%)
Subjective complaints1-153
 Dry eyes24 (73%)20 (80%)28 (67%)
 Dry mouth32 (96%)23 (92%)31 (74%)
  • Group A, patients with primary SS; group B, patients with secondary SS; group C, patients who tested negative for SS.

  • 1-150 Present at first visit.

  • 1-151 According to European criteria (at least one positive eye test).6

  • 1-152 According to Blatt,50 percentages based on the number of patients with available information.

  • 1-153 According to definition by European classification criteria.6

  • RA, Rheumatoid arthritis; SLE, systemic lupus erythematosus; CREST, calcinosis, Raynaud's phenomenon, oesophageal dysmotility, sclerodactyly, telangiectasis; PBC, primary biliary cirrhosis.