Y-Y Chiang1, H-W Lin. 1. Department of Dermatology, Taipei Medical University-Wan Fang Hospital, Taipei, Taiwan.
Abstract
BACKGROUND: Psoriasis is regarded as a systemic inflammatory disease, having been linked in recent studies, to a wide range of systemic disorders. Previous studies have reported a positive correlation between psoriasis and chronic obstructive pulmonary disease (COPD); however, no studies have been conducted on an ethnic Chinese population. METHODS: We conducted a population-based study, using a representative cohort from the National Health Insurance database in Taiwan, between 2004 and 2006. The risk of COPD was compared between patients with psoriasis and a matched reference cohort. This study included 2096 psoriasis patients and 8384 randomly selected controls. RESULTS: After adjusting for sociodemographic characteristics and selected chronic diseases, the hazard ratio (HR) for COPD in psoriasis patients was 2.35 (95% confidence interval (CI): 1.42-3.89) compared with the control group in 18 months of follow-4 up. Men (HR = 2.38, 95% CI: 1.36-4.18) and patients with psoriasis over 50 years of age (HR = 2.19, 95% CI: 1.27-3.77) were more likely to contract COPD. CONCLUSIONS: We concluded that psoriasis patients were at a greater risk of developing COPD with significantly lower COPD-free survival rates than the comparison cohort (P < 0.001). Physicians should be aware of this potential risk to reduce comorbidity and mortality.
BACKGROUND:Psoriasis is regarded as a systemic inflammatory disease, having been linked in recent studies, to a wide range of systemic disorders. Previous studies have reported a positive correlation between psoriasis and chronic obstructive pulmonary disease (COPD); however, no studies have been conducted on an ethnic Chinese population. METHODS: We conducted a population-based study, using a representative cohort from the National Health Insurance database in Taiwan, between 2004 and 2006. The risk of COPD was compared between patients with psoriasis and a matched reference cohort. This study included 2096 psoriasispatients and 8384 randomly selected controls. RESULTS: After adjusting for sociodemographic characteristics and selected chronic diseases, the hazard ratio (HR) for COPD in psoriasispatients was 2.35 (95% confidence interval (CI): 1.42-3.89) compared with the control group in 18 months of follow-4 up. Men (HR = 2.38, 95% CI: 1.36-4.18) and patients with psoriasis over 50 years of age (HR = 2.19, 95% CI: 1.27-3.77) were more likely to contract COPD. CONCLUSIONS: We concluded that psoriasispatients were at a greater risk of developing COPD with significantly lower COPD-free survival rates than the comparison cohort (P < 0.001). Physicians should be aware of this potential risk to reduce comorbidity and mortality.
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