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. 2022 Jun 9;9:900349. doi: 10.3389/fmed.2022.900349

TABLE 1.

Demographic and clinical parameters of pSS and healthy controls on study entry.

pSS (n = 60) Controls (n = 61) P-value
Age, mean ± SD years 53.5 ± 14.5 49.0 ± 15.9 0.213
Female/male 57/3 57/4 0.716
Disease duration, mean ± SD months 59.9 ± 89.5 NA NA
Constitutional symptoms(±) 19/41 NA NA
Lymphadenopathy(±) 25/35 NA NA
Glandular swelling(±) 13/47 NA NA
Arthritis (±) 12/48 NA NA
Cutaneous involvement(±) 7/53 NA NA
Lung involvement (±) 15/45 NA NA
Renal involvement (±) 3/57 NA NA
Peripheral neuropathy(±) 2/58 NA NA
Hematologic disorder(±) 44/16 NA NA
Biopsy focus score (number of lymphocytic foci/4 mm2) 2.2 ± 1.4 NA NA
Anti-SSA(%) 42/18 NA NA
Anti-SSB(%) 26/34 NA NA
IgG, mg/dL 1863 ± 681.1 NA NA
ESR, mean ± SD mm/h 36.6 ± 26.9 NA NA
RF, mean ± SD U/L 168.8 ± 469.4 NA NA
C3, mean ± SD mg/dl 96.6 ± 23.3 NA NA
C4, mean ± SD mg/dl 18.5 ± 8.3 NA NA
ESSDAI scores, mean ± SD 4.5 ± 3.0 NA NA
PD-1+CXCR5CD4+T cells (Tph)/CD4+T cells (%) 7.53 ± 6.65 3.08 ± 1.31 < 0.0001
PD-1+CXCR5+CD4+T cells (Tfh)/CD4+T cells (%) 3.42 ± 2.35 1.25 ± 0.56 < 0.0001

NA: not applicable; IgG, 700-1600mg/dl; ESR: Erythrocyte sedimentation rate, normal range 0–20mm/h; RF, rheumatoid factor, normal range 0–20 U/L; C3, normal range 58–160 mg/dL; C4, normal range 7–49 mg/dL; ESSDAI, EULAR Sjögren’s syndrome disease activity index.