Increased blood pressure after nonsevere COVID-19, 2023, Schmidt-Lauber et al.

Increased blood pressure after nonsevere COVID-19
Schmidt-Lauber, Christian;Alba Schmidt, Elisa;Hänzelmann, Sonja;Petersen, Elina L.;Behrendt, Christian-Alexander;Twerenbold, Raphael;Blankenberg, Stefan;Huber, Tobias B.;Wenzel, Ulrich O.

Background:
Various sequelae have been described after nonsevere coronavirus disease 2019 (COVID-19), but knowledge on postacute effects on blood pressure is limited.

Methods:
This is a cross-sectional analysis of blood pressure profiles in individuals after nonsevere COVID-19 compared with matched population-based individuals without prior COVID-19. Data were derived from the ongoing and prospective Hamburg City Health Study, a population-based study in Hamburg, Germany, and its associated COVID-19 program, which included individuals at least 4 months after COVID-19. Matching was performed by age, sex, education, and preexisting hypertension in a 1 : 4 ratio.

Results:
Four hundred and thirty-two individuals after COVID-19 (mean age 56.1 years) were matched to 1728 controls without prior COVID-19 (56.2 years). About 92.8% of COVID-19 courses were mild or moderate, only 7.2% were hospitalized, and no individual had been treated on an intensive care unit. Even after adjustment for relevant competing risk factors, DBP [+4.7 mmHg, 95% confidence interval (95% CI) 3.97–5.7, P < 0.001] was significantly higher in individuals after COVID-19. For SBP, a trend towards increased values was observed (+1.4 mmHg, 95% CI -0.4 to 3.2, P = 0.120). Hypertensive blood pressures at least 130/80 mmHg (according to the ACC/AHA guideline) and at least 140/90 mmHg (ESC/ESH guideline) occurred significantly more often in individuals after COVID-19 than matched controls (odds ratio 2.0, 95% CI 1.5–2.7, P < 0.001 and odds ratio 1.6, 95% CI 1.3–2.0, P < 0.001, respectively), mainly driven by changes in DBP.

Conclusion:
Blood pressure is higher in individuals after nonsevere COVID-19 compared with uninfected individuals suggesting a significant hypertensive sequela.

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