ABSTRACT
PURPOSE: Macular edema (ME) is a vision-limiting complication of uveitis. The aim of the present study was to identify risk factors for the development of ME. METHODS: This was an observational, cross-sectional study including 350 patients with noninfectious uveitis. Data were acquired by using a questionnaire. Associations with ME were analyzed for age,alcohol consumption, coffee consumption, cardiovascular risk factors, and level of education. RESULTS: On univariate analysis, patients with ME were older (p<0.001, odds ratio [OR] 1.03) and had a longer history of uveitis (p=0.006, OR 1.03). Patients with university certificate or high school diploma had a significantly reduced risk (OR 0.25, p<0.001) to develop ME compared to patients with less education. For smoking, the number of pack-years was significantly but weakly associated with the presence of ME (p=0.02, OR 1.02). Smokers with a smoking history of more than 20 pack-years had a higher risk for ME (OR = 2.46, confidence interval 1.2-5.2). Daily coffee consumption predisposed to ME (p=0.02, OR 2.1). Arterial hypertension, body mass index, alcohol consumptions, and hypercholesterinemia were not associated with ME. Multivariate analysis confirmed age, coffee consumption,and low education to be risk factors for ME, whereas smoking was lost on multivariate analysis. CONCLUSIONS: Age, low level of education, daily coffee consumption, and possibly smoking are risk factors for ME in patients with noninfectious uveitis.
Subject(s)
Macular Edema/etiology , Uveitis/complications , Adult , Body Mass Index , Cardiovascular Diseases/complications , Cardiovascular Diseases/physiopathology , Coffee , Cross-Sectional Studies , Female , Humans , Hypertension/complications , Male , Middle Aged , Odds Ratio , Risk Factors , Smoking/adverse effects , Surveys and Questionnaires , Uveitis/physiopathologyABSTRACT
BACKGROUND: Data concerning the association of smoking and uveitis are limited. The aim of this study was to evaluate the effect of tobacco smoking on uveitis activity and complications of noninfections uveitis and the need for immunosuppressive therapy. METHODS: We conducted an observational cross-sectional study in 350 patients with noninfectious uveitis. All patients completed a questionnaire concerning smoking habits. Primary outcome measure was uveitis activity in smokers as compared to nonsmokers; secondary outcome measures were need for immunosuppression and uveitis complications. RESULTS: In all 115 patients (32.9%) were smokers. Smokers had an increased risk for active uveitis (OR 1.8; 95% CI, 1.2-2.9; p = 0.007). Smokers with anterior uveitis had anterior chamber cells more often than nonsmokers (p = 0.008) and required significantly more topical steroid eyedrops (p = 0.002). Uveitis developed at a younger age in smokers than in nonsmokers (p = 0.027). The number of smokers who needed any second-line immunosuppression (p = 0.642) and the number of immunosuppressive agents required (p = 0.794) did not differ from that for nonsmokers. The number of pack-years significantly increased the risk of macular edema (p = 0.020) und cataract (p = 0.022). CONCLUSIONS: Smoking is associated with uveitis activity, leading to increased need for steroid eyedrops and increased incidence of cataract and macular edema. The results highlight the need to encourage uveitis patients to stop or at least to reduce their smoking.
