Abstract:
:Descriptive and retrospective studies without control groups have suggested a possible association between primary Sjögren's syndrome (pSS) and vitamin B12 (B12) deficiency. This is of importance because several mucosal and neurological features are common to these two conditions and could be prevented or reversed in case of B12 deficiency. We aimed to evaluate the association between pSS and B12 deficiency. We prospectively assessed the B12 status of 490 patients hospitalized in an internal medicine department over a 15-week period. Patients with pernicious anemia were excluded. We extracted patients with pSS and paired them with controls according to age and sex, with a 1:5 ratio. Twenty-one pSS patients were paired with 105 control patients. The median age was 70 years old (51-75) and 95.2% of patients were women. The plasma B12 level was lower in pSS patients (329 (293-521) ng/L vs. 456 (341-587) ng/L, p < 0.0001). B12 deficiency was associated with pSS (42.9% among pSS patients vs. 11.4% among controls), even after adjustment for other causes of B12 deficiency (OR 6.45 (95%CI: 2.08-20.0)). In conclusion, pSS appeared to be associated with B12 deficiency, even after the exclusion of pernicious anemia. This justifies screening and treating B12 deficiency in pSS patients.
journal_name
J Clin Medjournal_title
Journal of clinical medicineauthors
Urbanski G,Chabrun F,Schaepelynck B,May M,Loiseau M,Schlumberger E,Delattre E,Lavigne C,Lacombe Vdoi
10.3390/jcm9124063subject
Has Abstractpub_date
2020-12-16 00:00:00issue
12issn
2077-0383pii
jcm9124063journal_volume
9pub_type
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