Lupus & antiphospholipid syndrome

Association between cognitive impairment and olfactory deficits in systemic lupus erythematosus without major neuropsychiatric syndromes

LupusPublished Cross-sectional study

Authors' conclusion

This study indicates that significantly cognitive and olfactory functions are impaired in SLE patients.

Study context

Population
Systemic lupus erythematosus (SLE) patients without major neuropsychiatric syndromes and healthy controls
Participants
55 vs 50
Exposure
SLE vs healthy controls
  • SLEn = 55
  • Healthy controlsn = 50reference
Outcome
Cognitive function (RBANS: immediate memory, visuospatial/constructional, language, attention, delayed memory) and its relationship with olfactory function (threshold, identification, memory)

Main finding

As reported in the abstract

RBANS scores
SLE had significantly lower total Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), immediate memory (IMME), Vis/Con, attention (ATT) and delayed memory (DEME) index scores than healthy controls
p < 0.01 for all and p = 0.027 for attention
Olfactory memory and total scores correlated with DEME
r = 0.393, p = 0.021
Olfactory memory and total scores correlated with total RBANS scores
r = 0.429, p = 0.011

Observational data: associations, not effects.

Further findings

Anosmia and hyposmia

χ2 10.533 · P = 0.015

Anosmia

Hyposmia

Cognitive function (total RBANS, IMME, Vis/Con, ATT and DEME index scores)

SLE patients had significantly lower total RBANS, IMME, Vis/Con, ATT and DEME index scores than healthy controls (p < 0.01 for all and p = 0.027 for attention)

Olfactory scores

All olfactory scores significantly decreased in SLE patients vs controls (p = 0.001)

Correlation of olfactory memory and total scores with DEME and total RBANS scores

Correlation with DEME
r = 0.393, p = 0.021
Correlation with total scores
r = 0.429, p = 0.011

Original publication

Association between cognitive impairment and olfactory deficits in systemic lupus erythematosus without major neuropsychiatric syndromes. Lupus. Published 12 September 2023. doi:10.1177/09612033231201278

Composed by AI from the published abstract and checked against it. How Briefs are made →

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