Table 1 Characteristics of pSS patients and healthy controls

n

60

61

Female (n)

55

56

Age (Y)

46.9 ± 13.16

43.25 ± 11.22

Anti-SSA antibodies+ (n (%))

41 (68.33)

Anti-SSB antibodies+ (n (%))

32 (53.33)

IgG (mg/dl)

2039.47 ± 753.85

Unstimulated whole salivary flow≤1.5 ml/15 min (n (%))

40 (95.24)

Schirmer’s test ≤5 mm per 5 min (n (%))

25 (89.29%)

≥ 50 inflammatory cells/4 mm2 of Minor labial salivary gland on biopsy (n (%))

59 (98.33)