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Rheumatology (Oxford). 2013 Jan;52(1):173-9. doi: 10.1093/rheumatology/kes311. Epub 2012 Nov 28.

Clinical pulmonary involvement in primary Sjogren's syndrome: prevalence, quality of life and mortality--a retrospective study based on registry data.

Author information

1
Department of Rheumatology, Clinic for Cancer, Surgery and Organ Transplantation, Oslo University Hospital Rikshospitalet, PO Box 4950 Nydalen, 0424 Oslo, Norway. opalm@ous-hf.no

Abstract

OBJECTIVE:

The aim of the present study was to describe the prevalence of clinical pulmonary manifestations in primary SS (pSS), and based on registry data, to assess quality of life (QoL) and mortality in these patients.

METHODS:

Patients with pSS consecutively included in the Norwegian systemic CTD and vasculitis registry (NOSVAR) were investigated for pulmonary manifestations when presenting with clinical pulmonary symptoms. Pulmonary involvement was defined as typical abnormalities identified with high-resolution CT (HRCT) and/or pulmonary function tests (PFTs).

RESULTS:

Among patients referred from our primary area, Oslo (n = 117), lung involvement was found in 26 patients (22%). In our total cohort (n = 216), 59 patients (27%) were affected. A higher rate of pulmonary complications and trends towards longer disease duration and higher age indicated a selection of more complicated cases referred from outside our primary area. Abnormal HRCTs were found in 50 patients (23%) and PFTs in 34 patients (16%). The Medical Outcomes Study 36-Item Short-Form Health Survey Physical Functioning subscore, was significantly reduced in patients with lung involvement (P = 0.03). Furthermore, a 4-fold increased risk of dying after 10 years of disease among patients with lung involvement (n = 10, 17%) compared with those without lung involvement (n = 7, 4.5%) (P = 0.002) was found.

CONCLUSION:

We found a high population-based prevalence of clinical pulmonary involvement (22%) among patients with pSS. Moreover, patients with lung involvement had reduced QoL represented by the subscale Physical Functioning, and mortality was increased.

PMID:
23192906
DOI:
10.1093/rheumatology/kes311
[Indexed for MEDLINE]

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