Premium
Urolithiasis is associated with an increased risk of stroke: a population‐based 5‐year follow‐up study
Author(s) -
Chou PingSong,
Chang WeiPin,
Chou YiiHer
Publication year - 2018
Publication title -
internal medicine journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.596
H-Index - 70
eISSN - 1445-5994
pISSN - 1444-0903
DOI - 10.1111/imj.13622
Subject(s) - medicine , hazard ratio , stroke (engine) , cohort , confidence interval , cohort study , confounding , population , epidemiology , lower risk , mechanical engineering , environmental health , engineering
Background Epidemiological studies have reported an association between urolithiasis and cardiovascular disease. However, studies examining the risks of ischaemic and haemorrhagic stroke in patients with urolithiasis are limited. Aims and methods By using a nationwide population database, we conducted a matched cohort study to investigate the association between urolithiasis and longitudinal risks of ischaemic and haemorrhagic stroke. Results The urolithiasis and non‐urolithiasis cohorts included 12 979 and 64 895 patients respectively. Of these, 728 (5.6%) and 2802 (4.3%) patients in the urolithiasis and non‐urolithiasis cohorts, respectively, had a stroke during the 5‐year follow‐up period. The hazard ratio (HR) for stroke was 1.19 times higher (95% confidence interval [CI] = 1.10–1.29; P < 0.001) in the urolithiasis cohort than in the non‐urolithiasis cohort after adjustment for potential confounders. The risk of both ischaemic (adjusted HR = 1.16; 95% CI = 1.05–1.29) and haemorrhagic stroke (adjusted HR = 1.30; 95% CI = 1.03–1.64) remained significant in the urolithiasis cohort. Furthermore, the risk of stroke was significant in both men (adjusted HR = 1.16; 95% CI = 1.05–1.28) and women (adjusted HR = 1.26; 95% CI = 1.10–1.45). Middle‐aged (40–59 years; adjusted HR = 1.26; 95% CI = 1.10–1.45) and older (≥60 years; adjusted HR = 1.14; 95% CI = 1.03–1.27) patients had a particularly high risk of stroke. Conclusions The present study detected an increased risk of both ischaemic and haemorrhagic stroke in patients with urolithiasis, particularly in those older than 40 years.