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Table 2 Frequency of patients in primary Sjögren’s Syndrome (pSS), secondary SS (sSS), and non-SS (NSS) groups based on focus score (FS) according to Chisholm Mason FS criteria

From: Clinical and laboratory evaluation of sicca complaints: distinctive aspects of primary, secondary and non-Sjogren syndrome

 

pSS (n = 176/198)

sSS n = 110/149)

NSS-NM (n = 104/163)

NSS-EC (n = 16/163)

P

FS < 1

(15/176)

8.5%

(31/110)

28.2%

(90/104)

86.5%

(9/16)

56.2%

 

FS = 1

(23/176)

13.1%

(32/110)

29.1%

(14/104)

13.5%

(5/16)

31.2%

 

FS = 2

(42/176)

23.8%

(16/110)

14.5%

(0/104)

–

(2/16)

12.5%

 

FS = 3

(20/176)

11.3%

(10/110)

9.1%

(0/104)

–

(0/16)

–

 

FS = 4

(76/176)

43.2%

(21/110)

19.1%

(0/104)

–

(0/16)

–

 

Median (IQR)

3 (2–4)

1 (0–3)

0

0 (0–1)

P < 0.0001*

FS ≥ 1

(161/176)

91.4%

(79/110)

71.8%

(14/104)

13.5%

(7/16)

43.7%

 
   

17.5% (21/120)

  
  1. NSS-NM NSS subgroup who did not match the minimum diagnostic criteria; NSS-EC NSS subgroup who achieved any of the conditions listed as permanent exclusion criteria. Kruskal–Wallis test and Dunn’s post hoc test reveal differences among the groups
  2. *Statistically significant differences, except between the NSS-NM and NSS-EC groups