Table 1.

Hypertension and COVID-19 studies, with age included.

By First Author	Reference	Age Range	Details
Baradaran et al.	[22]	Mean age 51 years; 95% confidence interval, 49–54 years	Meta-analysis
Richardson et al.	[23]	Median age 63 years; interquartile range, 52–75 years	5700 subjects, New York City area, USA
Ahrenfeldt et al.	[24]	Mean age 68 years; age range 50–104 years	73,274 subjects, European region
Wu et al.	[25]	Median age 51 years; interquartile range, 43–60 years	201 subjects, Wuhan China
Chen et al.	[26]	Unspecified	Systematic review, 1936 subjects
Liu et al.	[27]	Median age 52.4 years; age range 32.5–64.0 years. Severe group older than non-severe group (60.9 years, range 45.0–74.0 years)	Meta-analysis, 10,948 subjects, most from China
Lippi et al.	[28]	COVID-19 severity associated with hypertension observed only in subjects over age 60 years	Systematic review, 2893 subjects, China
Atkins et al.	[29]	Mean age 74.3 years (SD 4.5)	UK Biobank Cohort, 507 COVID-19 positive subjects, hospitalized
Hernández-Galdamez et al.	[30]	45.7 (SD 16.3)	Cross-sectional study, 211,003 subjects, Mexico
De Vito et al.	[31]	Median age 72 years; interquartile range, 62.5–83.5 years	Retrospective, single-center study, 87 subjects, Italy
Mani et al.	[32]	Mean age 64.72 years (SD 14.87)	184 subjects, New York City area, USA
Gupta et al.	[33]	Mean age (all) 60.5 years (SD 14.5). Mean age (died) 66.0 years (SD 13.3)	Multicenter cohort study, 2215 subjects, USA
Bajgain et al.	[34]	Median age 56 years; interquartile range, 48.25–67.4 years	Systematic review, 22,753 subjects
Atalla et al.	[35]	Median age 61 years; interquartile range, 49–74 years	339 patients, Rhode Island, USA
Zheng et al.	[36]	Median age 47.13 years; range, 11–84 years.	Cohort study, 68 patients, China
Pan et al.	[37]	Median age of hypertensive patients 69 years; interquartile range, 62–76 years	Single-center, retrospective study, 996 patients, China

SD: standard deviation.