Incidence of Hospitalization for Stroke in Queensland, Australia: Younger Adults at Risk.

2020 
BACKGROUND: Trends in the incidence of stroke are important for health care planning. Information is particularly scarce in Australia, due to the paucity of studies with access to recent, large-scale, longitudinal datasets. In this paper we investigated the incidence of hospitalization for stroke by sex, age, and subtype in the whole State of Queensland (Australia). METHODS: We obtained data of all hospital admissions for stroke in Queensland from 2002 to 2015. Age standardized hospitalization rates for first-ever stroke were calculated along with WHO adjusted rates. Poisson regression analyses were conducted to investigate the influence of time and gender on the incidence of subtypes of stroke as well as the total incidence. RESULTS: Admissions for first-ever stroke were 57,597. Crude hospitalization incidence rose from 87 (95% confidence interval [CI], 84-90) to 108 (95%CI, 105-111) for both sexes. The highest increase was in the age bands 40-49 from 33 (95%CI, 26-40) to 54 (95%CI, 46-62; +62%) and 50-59 from 82 (95%CI, 70-93) to 127 (95%CI, 114-140; +56%) in men and in 60-69 from 118 (95%CI, 100-136) to 159 (95%CI, 143-175; +34%) in women. Ischemic subtype rates appeared to increase more than haemorrhagic rates. Age range, sex, and year reliably predicted incidence rates. CONCLUSIONS: If these trends are maintained, the data predict further increases, especially in males aged 40-59. With people apparently stroking earlier and mortality rates dropping, the healthcare system in Australia is faced with a rapidly increasing care burden.
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