RT Journal Article SR Electronic T1 Association of hypertension with mortality in patients hospitalised with COVID-19 JF Open Heart JO Open Heart FD British Cardiovascular Society SP e001853 DO 10.1136/openhrt-2021-001853 VO 8 IS 2 A1 Kunwardeep S Bhatia A1 Hari P Sritharan A1 Jonathan Ciofani A1 Justin Chia A1 Usaid K Allahwala A1 Karina Chui A1 Daniel Nour A1 Sheran Vasanthakumar A1 Dhanvee Khandadai A1 Pavithra Jayadeva A1 Rohan Bhagwandeen A1 David Brieger A1 Christopher Choong A1 Anthony Delaney A1 Girish Dwivedi A1 Benjamin Harris A1 Graham Hillis A1 Bernard Hudson A1 George Javorski A1 Nigel Jepson A1 Logan Kanagaratnam A1 George Kotsiou A1 Astin Lee A1 Sidney T Lo A1 Andrew I MacIsaac A1 Brendan McQuillan A1 Isuru Ranasinghe A1 Antony Walton A1 James Weaver A1 William Wilson A1 Andy S C Yong A1 John Zhu A1 William Van Gaal A1 Leonard Kritharides A1 Clara K Chow A1 Ravinay Bhindi YR 2021 UL http://openheart.bmj.com/content/8/2/e001853.abstract AB Objective To assess whether hypertension is an independent risk factor for mortality among patients hospitalised with COVID-19, and to evaluate the impact of ACE inhibitor and angiotensin receptor blocker (ARB) use on mortality in patients with a background of hypertension.Method This observational cohort study included all index hospitalisations with laboratory-proven COVID-19 aged ≥18 years across 21 Australian hospitals. Patients with suspected, but not laboratory-proven COVID-19, were excluded. Registry data were analysed for in-hospital mortality in patients with comorbidities including hypertension, and baseline treatment with ACE inhibitors or ARBs.Results 546 consecutive patients (62.9±19.8 years old, 51.8% male) hospitalised with COVID-19 were enrolled. In the multivariable model, significant predictors of mortality were age (adjusted OR (aOR) 1.09, 95% CI 1.07 to 1.12, p<0.001), heart failure or cardiomyopathy (aOR 2.71, 95% CI 1.13 to 6.53, p=0.026), chronic kidney disease (aOR 2.33, 95% CI 1.02 to 5.32, p=0.044) and chronic obstructive pulmonary disease (aOR 2.27, 95% CI 1.06 to 4.85, p=0.035). Hypertension was the most prevalent comorbidity (49.5%) but was not independently associated with increased mortality (aOR 0.92, 95% CI 0.48 to 1.77, p=0.81). Among patients with hypertension, ACE inhibitor (aOR 1.37, 95% CI 0.61 to 3.08, p=0.61) and ARB (aOR 0.64, 95% CI 0.27 to 1.49, p=0.30) use was not associated with mortality.Conclusions In patients hospitalised with COVID-19, pre-existing hypertension was the most prevalent comorbidity but was not independently associated with mortality. Similarly, the baseline use of ACE inhibitors or ARBs had no independent association with in-hospital mortality.Data are available upon reasonable request.